Matronics Email Lists Forum Index Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
 
 Get Email Distribution Too!Get Email Distribution Too!    FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Cylinder Head Temperature Gages

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> Yak-List
View previous topic :: View next topic  
Author Message
yakman285(at)gmail.com
Guest





PostPosted: Fri Jun 19, 2020 2:13 am    Post subject: Cylinder Head Temperature Gages Reply with quote

So, washers on # 1 and #4 ?? I believe they belong on #2 and #7. Sounds like other issues going on with the wiring as well.
Craig Payne


- The Matronics Yak-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List
Back to top
Clouddog



Joined: 02 Jun 2016
Posts: 116
Location: Lebanon, TN

PostPosted: Fri Jun 19, 2020 4:13 am    Post subject: Cylinder Head Temperature Gages Reply with quote

1&4 is the way it was when I bought it. My bad for assuming they were correct. So what you're saying is 2&7 are the hottest cylinders with 2 going to the front gage and 7 to the rear gage? Anyone else have  their temp probes connected to different cylinders?

Greg "Clouddog" Wrobel
On Fri, Jun 19, 2020, 06:17 Craig Payne <yakman285(at)gmail.com (yakman285(at)gmail.com)> wrote:

Quote:
So, washers on # 1 and #4 ?? I believe they belong on #2 and #7. Sounds like other issues going on with the wiring as well.
Craig Payne


- The Matronics Yak-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List
Back to top
View user's profile Send private message Send e-mail
pennington.construction.i
Guest





PostPosted: Fri Jun 19, 2020 5:17 am    Post subject: Cylinder Head Temperature Gages Reply with quote

Good Morning Greg

I fly a CJ with an M14P and my CHT sensors are on 1&2, not sure which is front and which is rear.  Not sure how the CJ comes from the factory with a Housai.  Or how a Yak with an M14P is wired either.
If you go to Dougs website and go to volume 5 and right click that book and open it up in a different tab or download it to your computer look at page 407, Figure 2-14-2 in the book.  It shows the complete wiring from the copper ring to the plug that plugs into your gauge. Yes there are two separate unrelated wire runs for the front and rear cockpits.  Two each of the assembly on page 407.
The sensor is a thermocouple and does not require any exterior voltage to work.  That is why it shows a cylinder head temp on the ground in the hangar with the master off.
From what I can tell, those of us that have the auto plug conversion kits on our planes remove the washer on the spark plug and of course install the thermocouple copper ring in its place.  Hopefully ensuring proper penetration into the cylinder head for good combustion.
You don't have to remove the washer on the plug, but I understand some folks do.
If you take a look at page 407 you can see there are two separate areas that have terminations that may be causing your shaking issues due to possible loose connections or broken wires.   On my aircraft I do not have the intermediate terminals closest to the plug shown on page 407.  The thermocouple attaches at the engine and runs straight to the plug on the rear of my CHT gauge.   Not sure all planes are or were wired per the book on page 407.    The thermocouple assembly under the cowl is the first set of screw terminals shown on page 407.


Hope this helps.  Please let us know what you found.  It may help others.


Mark Pennington
CJ6 Driver.


Virus-free. www.avast.com [url=#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2][/url]

On Fri, Jun 19, 2020 at 8:17 AM Greg Wrobel <clouddog22(at)gmail.com (clouddog22(at)gmail.com)> wrote:

Quote:
1&4 is the way it was when I bought it. My bad for assuming they were correct. So what you're saying is 2&7 are the hottest cylinders with 2 going to the front gage and 7 to the rear gage? Anyone else have  their temp probes connected to different cylinders?

Greg "Clouddog" Wrobel
On Fri, Jun 19, 2020, 06:17 Craig Payne <yakman285(at)gmail.com (yakman285(at)gmail.com)> wrote:

Quote:
So, washers on # 1 and #4 ?? I believe they belong on #2 and #7. Sounds like other issues going on with the wiring as well.
Craig Payne



- The Matronics Yak-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List
Back to top
pennington.construction.i
Guest





PostPosted: Fri Jun 19, 2020 10:17 am    Post subject: Cylinder Head Temperature Gages Reply with quote

Walt. 
[img]cid:172cdc8b7dcccd417661[/img]
 

I am at the hangar with the tech manual for the Housai.  
You are correct as usual.  It is cylinders 1 and 4.  
And Cylinder 4 goes to the front cockpit.  
I have attached a photo of the page in the manual. 
Start reading at code 41Y.   42Y talks about front cockpit.  #4 cylinder.  
Thanks Walt
Mark Pennington 

On Fri, Jun 19, 2020 at 1:47 PM Walter Lannon <wlannon(at)shaw.ca (wlannon(at)shaw.ca)> wrote:

Quote:
I can confirm that #1 and #4 rear spark plugs are the correct location for the CHT sensors.
 
These are the two hottest cylinders.  There is manual information that identifies those and to which cockpit but I have no time right now to dig it up.
 
Cheers;
Walt
 
From: Mark Pennington (pennington.construction.inc.1(at)gmail.com)
Sent: Friday, June 19, 2020 6:14 AM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: Re: Re: Cylinder Head Temperature Gages
 

Good Morning Greg  
I fly a CJ with an M14P and my CHT sensors are on 1&2, not sure which is front and which is rear.  Not sure how the CJ comes from the factory with a Housai.  Or how a Yak with an M14P is wired either.
 
If you go to Dougs website and go to volume 5 and right click that book and open it up in a different tab or download it to your computer look at page 407, Figure 2-14-2 in the book.  It shows the complete wiring from the copper ring to the plug that plugs into your gauge. Yes there are two separate unrelated wire runs for the front and rear cockpits.  Two each of the assembly on page 407.
 
The sensor is a thermocouple and does not require any exterior voltage to work.  That is why it shows a cylinder head temp on the ground in the hangar with the master off.
 
From what I can tell, those of us that have the auto plug conversion kits on our planes remove the washer on the spark plug and of course install the thermocouple copper ring in its place.  Hopefully ensuring proper penetration into the cylinder head for good combustion.
 
You don't have to remove the washer on the plug, but I understand some folks do.
 
If you take a look at page 407 you can see there are two separate areas that have terminations that may be causing your shaking issues due to possible loose connections or broken wires.   On my aircraft I do not have the intermediate terminals closest to the plug shown on page 407.  The thermocouple attaches at the engine and runs straight to the plug on the rear of my CHT gauge.   Not sure all planes are or were wired per the book on page 407.    The thermocouple assembly under the cowl is the first set of screw terminals shown on page 407.
 
 
Hope this helps.  Please let us know what you found.  It may help others.
 
 
Mark Pennington
CJ6 Driver.
 
 
 
 
 
 
 


Virus-free. www.avast.com
 
On Fri, Jun 19, 2020 at 8:17 AM Greg Wrobel <clouddog22(at)gmail.com (clouddog22(at)gmail.com)> wrote:

Quote:
1&4 is the way it was when I bought it. My bad for assuming they were correct. So what you're saying is 2&7 are the hottest cylinders with 2 going to the front gage and 7 to the rear gage? Anyone else have  their temp probes connected to different cylinders?

Greg "Clouddog" Wrobel

 
On Fri, Jun 19, 2020, 06:17 Craig Payne <yakman285(at)gmail.com (yakman285(at)gmail.com)> wrote:

Quote:
So, washers on # 1 and #4 ?? I believe they belong on #2 and #7. Sounds like other issues going on with the wiring as well.
 
Craig Payne






- The Matronics Yak-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List



IMG_3892.jpg
 Description:
 Filesize:  2.88 MB
 Viewed:  8299 Time(s)

IMG_3892.jpg


Back to top
Clouddog



Joined: 02 Jun 2016
Posts: 116
Location: Lebanon, TN

PostPosted: Fri Jun 19, 2020 2:08 pm    Post subject: Cylinder Head Temperature Gages Reply with quote

Ok. At least I got everything connected to to the correct cylinders. 1&4. Now just following wire or swapping gages (rear to Front) to see if the problem follows. Y'all are great thanks a billion.

Greg "Clouddog" Wrobel
On Fri, Jun 19, 2020, 14:25 Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:

Quote:
Walt. 
[img]cid:172cdc8b7dcccd417661[/img]
 

I am at the hangar with the tech manual for the Housai.  
You are correct as usual.  It is cylinders 1 and 4.  
And Cylinder 4 goes to the front cockpit.  
I have attached a photo of the page in the manual. 
Start reading at code 41Y.   42Y talks about front cockpit.  #4 cylinder.  
Thanks Walt
Mark Pennington 

On Fri, Jun 19, 2020 at 1:47 PM Walter Lannon <wlannon(at)shaw.ca (wlannon(at)shaw.ca)> wrote:

Quote:
I can confirm that #1 and #4 rear spark plugs are the correct location for the CHT sensors.
 
These are the two hottest cylinders.  There is manual information that identifies those and to which cockpit but I have no time right now to dig it up.
 
Cheers;
Walt
 
From: Mark Pennington (pennington.construction.inc.1(at)gmail.com)
Sent: Friday, June 19, 2020 6:14 AM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: Re: Re: Cylinder Head Temperature Gages
 

Good Morning Greg  
I fly a CJ with an M14P and my CHT sensors are on 1&2, not sure which is front and which is rear.  Not sure how the CJ comes from the factory with a Housai.  Or how a Yak with an M14P is wired either.
 
If you go to Dougs website and go to volume 5 and right click that book and open it up in a different tab or download it to your computer look at page 407, Figure 2-14-2 in the book.  It shows the complete wiring from the copper ring to the plug that plugs into your gauge. Yes there are two separate unrelated wire runs for the front and rear cockpits.  Two each of the assembly on page 407.
 
The sensor is a thermocouple and does not require any exterior voltage to work.  That is why it shows a cylinder head temp on the ground in the hangar with the master off.
 
From what I can tell, those of us that have the auto plug conversion kits on our planes remove the washer on the spark plug and of course install the thermocouple copper ring in its place.  Hopefully ensuring proper penetration into the cylinder head for good combustion.
 
You don't have to remove the washer on the plug, but I understand some folks do.
 
If you take a look at page 407 you can see there are two separate areas that have terminations that may be causing your shaking issues due to possible loose connections or broken wires.   On my aircraft I do not have the intermediate terminals closest to the plug shown on page 407.  The thermocouple attaches at the engine and runs straight to the plug on the rear of my CHT gauge.   Not sure all planes are or were wired per the book on page 407.    The thermocouple assembly under the cowl is the first set of screw terminals shown on page 407.
 
 
Hope this helps.  Please let us know what you found.  It may help others.
 
 
Mark Pennington
CJ6 Driver.
 
 
 
 
 
 
 


Virus-free. www.avast.com
 
On Fri, Jun 19, 2020 at 8:17 AM Greg Wrobel <clouddog22(at)gmail.com (clouddog22(at)gmail.com)> wrote:

Quote:
1&4 is the way it was when I bought it. My bad for assuming they were correct. So what you're saying is 2&7 are the hottest cylinders with 2 going to the front gage and 7 to the rear gage? Anyone else have  their temp probes connected to different cylinders?

Greg "Clouddog" Wrobel

 
On Fri, Jun 19, 2020, 06:17 Craig Payne <yakman285(at)gmail.com (yakman285(at)gmail.com)> wrote:

Quote:
So, washers on # 1 and #4 ?? I believe they belong on #2 and #7. Sounds like other issues going on with the wiring as well.
 
Craig Payne








- The Matronics Yak-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List



IMG_3892.jpg
 Description:
 Filesize:  2.88 MB
 Viewed:  8296 Time(s)

IMG_3892.jpg


Back to top
View user's profile Send private message Send e-mail
pennington.construction.i
Guest





PostPosted: Fri Jun 19, 2020 8:49 pm    Post subject: Cylinder Head Temperature Gages Reply with quote

Dennis. 

We have this cleared up for the Housai.  
Is it the same for M14P.   Cylinders 1 and 4.   Number 4 for the front cockpit ?
Thanks
Mark

On Fri, Jun 19, 2020 at 6:16 PM Greg Wrobel <clouddog22(at)gmail.com (clouddog22(at)gmail.com)> wrote:

Quote:
Ok. At least I got everything connected to to the correct cylinders. 1&4. Now just following wire or swapping gages (rear to Front) to see if the problem follows. Y'all are great thanks a billion.

Greg "Clouddog" Wrobel
On Fri, Jun 19, 2020, 14:25 Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:

Quote:
Walt. 
[img]cid:172cdc8b7dcccd417661[/img]
 

I am at the hangar with the tech manual for the Housai.  
You are correct as usual.  It is cylinders 1 and 4.  
And Cylinder 4 goes to the front cockpit.  
I have attached a photo of the page in the manual. 
Start reading at code 41Y.   42Y talks about front cockpit.  #4 cylinder.  
Thanks Walt
Mark Pennington 

On Fri, Jun 19, 2020 at 1:47 PM Walter Lannon <wlannon(at)shaw.ca (wlannon(at)shaw.ca)> wrote:

Quote:
I can confirm that #1 and #4 rear spark plugs are the correct location for the CHT sensors.
 
These are the two hottest cylinders.  There is manual information that identifies those and to which cockpit but I have no time right now to dig it up.
 
Cheers;
Walt
 
From: Mark Pennington (pennington.construction.inc.1(at)gmail.com)
Sent: Friday, June 19, 2020 6:14 AM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: Re: Re: Cylinder Head Temperature Gages
 

Good Morning Greg  
I fly a CJ with an M14P and my CHT sensors are on 1&2, not sure which is front and which is rear.  Not sure how the CJ comes from the factory with a Housai.  Or how a Yak with an M14P is wired either.
 
If you go to Dougs website and go to volume 5 and right click that book and open it up in a different tab or download it to your computer look at page 407, Figure 2-14-2 in the book.  It shows the complete wiring from the copper ring to the plug that plugs into your gauge. Yes there are two separate unrelated wire runs for the front and rear cockpits.  Two each of the assembly on page 407.
 
The sensor is a thermocouple and does not require any exterior voltage to work.  That is why it shows a cylinder head temp on the ground in the hangar with the master off.
 
From what I can tell, those of us that have the auto plug conversion kits on our planes remove the washer on the spark plug and of course install the thermocouple copper ring in its place.  Hopefully ensuring proper penetration into the cylinder head for good combustion.
 
You don't have to remove the washer on the plug, but I understand some folks do.
 
If you take a look at page 407 you can see there are two separate areas that have terminations that may be causing your shaking issues due to possible loose connections or broken wires.   On my aircraft I do not have the intermediate terminals closest to the plug shown on page 407.  The thermocouple attaches at the engine and runs straight to the plug on the rear of my CHT gauge.   Not sure all planes are or were wired per the book on page 407.    The thermocouple assembly under the cowl is the first set of screw terminals shown on page 407.
 
 
Hope this helps.  Please let us know what you found.  It may help others.
 
 
Mark Pennington
CJ6 Driver.
 
 
 
 
 
 
 


Virus-free. www.avast.com
 
On Fri, Jun 19, 2020 at 8:17 AM Greg Wrobel <clouddog22(at)gmail.com (clouddog22(at)gmail.com)> wrote:

Quote:
1&4 is the way it was when I bought it. My bad for assuming they were correct. So what you're saying is 2&7 are the hottest cylinders with 2 going to the front gage and 7 to the rear gage? Anyone else have  their temp probes connected to different cylinders?

Greg "Clouddog" Wrobel

 
On Fri, Jun 19, 2020, 06:17 Craig Payne <yakman285(at)gmail.com (yakman285(at)gmail.com)> wrote:

Quote:
So, washers on # 1 and #4 ?? I believe they belong on #2 and #7. Sounds like other issues going on with the wiring as well.
 
Craig Payne









- The Matronics Yak-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List



IMG_3892.jpg
 Description:
 Filesize:  2.88 MB
 Viewed:  8285 Time(s)

IMG_3892.jpg


Back to top
kiwi679



Joined: 08 Jul 2011
Posts: 20
Location: Netherlands

PostPosted: Fri Jun 19, 2020 10:45 pm    Post subject: Cylinder Head Temperature Gages Reply with quote

Can someone send me Dougs website address.
thanks,
Steve
Quote:
On 20 Jun 2020, at 00:23, Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:
Dennis.
We have this cleared up for the Housai.

Is it the same for M14P. Cylinders 1 and 4. Number 4 for the front cockpit ?

Thanks
Mark
On Fri, Jun 19, 2020 at 6:16 PM Greg Wrobel <clouddog22(at)gmail.com (clouddog22(at)gmail.com)> wrote:
Quote:
Ok. At least I got everything connected to to the correct cylinders. 1&4. Now just following wire or swapping gages (rear to Front) to see if the problem follows. Y'all are great thanks a billion.Greg "Clouddog" Wrobel

On Fri, Jun 19, 2020, 14:25 Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:
Quote:
Walt.
<IMG_3892.jpg>


I am at the hangar with the tech manual for the Housai.

You are correct as usual. It is cylinders 1 and 4.

And Cylinder 4 goes to the front cockpit.

I have attached a photo of the page in the manual.

Start reading at code 41Y. 42Y talks about front cockpit. #4 cylinder.

Thanks Walt

Mark Pennington
On Fri, Jun 19, 2020 at 1:47 PM Walter Lannon <wlannon(at)shaw.ca (wlannon(at)shaw.ca)> wrote:
Quote:
I can confirm that #1 and #4 rear spark plugs are the correct location for the CHT sensors.

These are the two hottest cylinders. There is manual information that identifies those and to which cockpit but I have no time right now to dig it up.

Cheers;
Walt

From: Mark Pennington (pennington.construction.inc.1(at)gmail.com)
Sent: Friday, June 19, 2020 6:14 AM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: Re: Re: Cylinder Head Temperature Gages


Good Morning Greg
I fly a CJ with an M14P and my CHT sensors are on 1&2, not sure which is front and which is rear. Not sure how the CJ comes from the factory with a Housai. Or how a Yak with an M14P is wired either.

If you go to Dougs website and go to volume 5 and right click that book and open it up in a different tab or download it to your computer look at page 407, Figure 2-14-2 in the book. It shows the complete wiring from the copper ring to the plug that plugs into your gauge. Yes there are two separate unrelated wire runs for the front and rear cockpits. Two each of the assembly on page 407.

The sensor is a thermocouple and does not require any exterior voltage to work. That is why it shows a cylinder head temp on the ground in the hangar with the master off.

From what I can tell, those of us that have the auto plug conversion kits on our planes remove the washer on the spark plug and of course install the thermocouple copper ring in its place. Hopefully ensuring proper penetration into the cylinder head for good combustion.

You don't have to remove the washer on the plug, but I understand some folks do.

If you take a look at page 407 you can see there are two separate areas that have terminations that may be causing your shaking issues due to possible loose connections or broken wires. On my aircraft I do not have the intermediate terminals closest to the plug shown on page 407. The thermocouple attaches at the engine and runs straight to the plug on the rear of my CHT gauge. Not sure all planes are or were wired per the book on page 407. The thermocouple assembly under the cowl is the first set of screw terminals shown on page 407.


Hope this helps. Please let us know what you found. It may help others.


Mark Pennington
CJ6 Driver.








Virus-free. www.avast.com

On Fri, Jun 19, 2020 at 8:17 AM Greg Wrobel <clouddog22(at)gmail.com (clouddog22(at)gmail.com)> wrote:
Quote:
1&4 is the way it was when I bought it. My bad for assuming they were correct. So what you're saying is 2&7 are the hottest cylinders with 2 going to the front gage and 7 to the rear gage? Anyone else have their temp probes connected to different cylinders? Greg "Clouddog" Wrobel


On Fri, Jun 19, 2020, 06:17 Craig Payne <yakman285(at)gmail.com (yakman285(at)gmail.com)> wrote:
Quote:
So, washers on # 1 and #4 ?? I believe they belong on #2 and #7. Sounds like other issues going on with the wiring as well.

Craig Payne













- The Matronics Yak-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List

_________________
regards Stephen
Back to top
View user's profile Send private message
dsavarese0812(at)bellsout
Guest





PostPosted: Sat Jun 20, 2020 3:15 am    Post subject: Cylinder Head Temperature Gages Reply with quote

Hi Mark,Actually the Yak 52’s had both CHT probes on the rear plug of #4 cylinder from the factory.
I never found out why both were on #4. But I guess they knew what they were doing.
I knew #2 would always be hotter because I would test the cylinders with a laser temperature instrument. But still I never changed the configuration.
The only way to truly know is with a 9 cylinder CHT instrument. Ask who has a JPI or similar engine monitor system installed on their engine. They will definitely know which are the hottest cylinders and in what flight configuration. Like takeoff, climb, cruise, slow flight, glide, aerobatics, etc.
Dennis

Sent from my iPhone

Quote:
On Jun 20, 2020, at 12:51 AM, Mark Pennington <pennington.construction.inc.1(at)gmail.com> wrote:

Dennis.

We have this cleared up for the Housai.  
Is it the same for M14P. Cylinders 1 and 4. Number 4 for the front cockpit ?
Thanks
Mark

On Fri, Jun 19, 2020 at 6:16 PM Greg Wrobel <clouddog22(at)gmail.com (clouddog22(at)gmail.com)> wrote:

Quote:
Ok. At least I got everything connected to to the correct cylinders. 1&4. Now just following wire or swapping gages (rear to Front) to see if the problem follows. Y'all are great thanks a billion.

Greg "Clouddog" Wrobel
On Fri, Jun 19, 2020, 14:25 Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:

Quote:
Walt.
<IMG_3892.jpg>



I am at the hangar with the tech manual for the Housai.
You are correct as usual. It is cylinders 1 and 4.
And Cylinder 4 goes to the front cockpit.
I have attached a photo of the page in the manual.
Start reading at code 41Y. 42Y talks about front cockpit. #4 cylinder.
Thanks Walt
Mark Pennington

On Fri, Jun 19, 2020 at 1:47 PM Walter Lannon <wlannon(at)shaw.ca (wlannon(at)shaw.ca)> wrote:

Quote:
I can confirm that #1 and #4 rear spark plugs are the correct location for the CHT sensors.

These are the two hottest cylinders. There is manual information that identifies those and to which cockpit but I have no time right now to dig it up.

Cheers;
Walt

From: Mark Pennington (pennington.construction.inc.1(at)gmail.com)
Sent: Friday, June 19, 2020 6:14 AM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: Re: Re: Cylinder Head Temperature Gages


Good Morning Greg
I fly a CJ with an M14P and my CHT sensors are on 1&2, not sure which is front and which is rear. Not sure how the CJ comes from the factory with a Housai. Or how a Yak with an M14P is wired either.

If you go to Dougs website and go to volume 5 and right click that book and open it up in a different tab or download it to your computer look at page 407, Figure 2-14-2 in the book. It shows the complete wiring from the copper ring to the plug that plugs into your gauge. Yes there are two separate unrelated wire runs for the front and rear cockpits. Two each of the assembly on page 407.

The sensor is a thermocouple and does not require any exterior voltage to work. That is why it shows a cylinder head temp on the ground in the hangar with the master off.

From what I can tell, those of us that have the auto plug conversion kits on our planes remove the washer on the spark plug and of course install the thermocouple copper ring in its place. Hopefully ensuring proper penetration into the cylinder head for good combustion.

You don't have to remove the washer on the plug, but I understand some folks do.

If you take a look at page 407 you can see there are two separate areas that have terminations that may be causing your shaking issues due to possible loose connections or broken wires. On my aircraft I do not have the intermediate terminals closest to the plug shown on page 407. The thermocouple attaches at the engine and runs straight to the plug on the rear of my CHT gauge. Not sure all planes are or were wired per the book on page 407. The thermocouple assembly under the cowl is the first set of screw terminals shown on page 407.


Hope this helps. Please let us know what you found. It may help others.


Mark Pennington
CJ6 Driver.









Virus-free. www.avast.com

On Fri, Jun 19, 2020 at 8:17 AM Greg Wrobel <clouddog22(at)gmail.com (clouddog22(at)gmail.com)> wrote:

Quote:
1&4 is the way it was when I bought it. My bad for assuming they were correct. So what you're saying is 2&7 are the hottest cylinders with 2 going to the front gage and 7 to the rear gage? Anyone else have their temp probes connected to different cylinders?

Greg "Clouddog" Wrobel


On Fri, Jun 19, 2020, 06:17 Craig Payne <yakman285(at)gmail.com (yakman285(at)gmail.com)> wrote:

Quote:
So, washers on # 1 and #4 ?? I believe they belong on #2 and #7. Sounds like other issues going on with the wiring as well.

Craig Payne












- The Matronics Yak-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List
Back to top
Clouddog



Joined: 02 Jun 2016
Posts: 116
Location: Lebanon, TN

PostPosted: Sat Jun 20, 2020 3:18 am    Post subject: Cylinder Head Temperature Gages Reply with quote

Thanks again Walt for the verification on where the temp pickups are located on  which sparkplugs. Swapping gages after a wire check will be next.
Greg "Clouddog" Wrobel

On Fri, Jun 19, 2020, 13:47 Walter Lannon <wlannon(at)shaw.ca (wlannon(at)shaw.ca)> wrote:

Quote:
I can confirm that #1 and #4 rear spark plugs are the correct location for the CHT sensors.
 
These are the two hottest cylinders.  There is manual information that identifies those and to which cockpit but I have no time right now to dig it up.
 
Cheers;
Walt
 
From: Mark Pennington (pennington.construction.inc.1(at)gmail.com)
Sent: Friday, June 19, 2020 6:14 AM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: Re: Re: Cylinder Head Temperature Gages
 

Good Morning Greg  
I fly a CJ with an M14P and my CHT sensors are on 1&2, not sure which is front and which is rear.  Not sure how the CJ comes from the factory with a Housai.  Or how a Yak with an M14P is wired either.
 
If you go to Dougs website and go to volume 5 and right click that book and open it up in a different tab or download it to your computer look at page 407, Figure 2-14-2 in the book.  It shows the complete wiring from the copper ring to the plug that plugs into your gauge. Yes there are two separate unrelated wire runs for the front and rear cockpits.  Two each of the assembly on page 407.
 
The sensor is a thermocouple and does not require any exterior voltage to work.  That is why it shows a cylinder head temp on the ground in the hangar with the master off.
 
From what I can tell, those of us that have the auto plug conversion kits on our planes remove the washer on the spark plug and of course install the thermocouple copper ring in its place.  Hopefully ensuring proper penetration into the cylinder head for good combustion.
 
You don't have to remove the washer on the plug, but I understand some folks do.
 
If you take a look at page 407 you can see there are two separate areas that have terminations that may be causing your shaking issues due to possible loose connections or broken wires.   On my aircraft I do not have the intermediate terminals closest to the plug shown on page 407.  The thermocouple attaches at the engine and runs straight to the plug on the rear of my CHT gauge.   Not sure all planes are or were wired per the book on page 407.    The thermocouple assembly under the cowl is the first set of screw terminals shown on page 407.
 
 
Hope this helps.  Please let us know what you found.  It may help others.
 
 
Mark Pennington
CJ6 Driver.
 
 
 
 
 
 
 


Virus-free. www.avast.com
 
On Fri, Jun 19, 2020 at 8:17 AM Greg Wrobel <clouddog22(at)gmail.com (clouddog22(at)gmail.com)> wrote:

Quote:
1&4 is the way it was when I bought it. My bad for assuming they were correct. So what you're saying is 2&7 are the hottest cylinders with 2 going to the front gage and 7 to the rear gage? Anyone else have  their temp probes connected to different cylinders?

Greg "Clouddog" Wrobel

 
On Fri, Jun 19, 2020, 06:17 Craig Payne <yakman285(at)gmail.com (yakman285(at)gmail.com)> wrote:

Quote:
So, washers on # 1 and #4 ?? I believe they belong on #2 and #7. Sounds like other issues going on with the wiring as well.
 
Craig Payne






- The Matronics Yak-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List
Back to top
View user's profile Send private message Send e-mail
pennington.construction.i
Guest





PostPosted: Sat Jun 20, 2020 3:27 am    Post subject: Cylinder Head Temperature Gages Reply with quote

Steve.    

Website is.   CJ6.com
Mark Pennington

On Sat, Jun 20, 2020 at 2:49 AM Stephen van Dijck <s.dijck(at)planet.nl (s.dijck(at)planet.nl)> wrote:

Quote:
Can someone send me Dougs website address.

thanks,
Steve

Quote:
On 20 Jun 2020, at 00:23, Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:

Dennis. 

We have this cleared up for the Housai.  
Is it the same for M14P.   Cylinders 1 and 4.   Number 4 for the front cockpit ?
Thanks
Mark

On Fri, Jun 19, 2020 at 6:16 PM Greg Wrobel <clouddog22(at)gmail.com (clouddog22(at)gmail.com)> wrote:

Quote:
Ok. At least I got everything connected to to the correct cylinders. 1&4. Now just following wire or swapping gages (rear to Front) to see if the problem follows. Y'all are great thanks a billion.

Greg "Clouddog" Wrobel
On Fri, Jun 19, 2020, 14:25 Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:

Quote:
Walt. 
<IMG_3892.jpg>
 

I am at the hangar with the tech manual for the Housai.  
You are correct as usual.  It is cylinders 1 and 4.  
And Cylinder 4 goes to the front cockpit.  
I have attached a photo of the page in the manual. 
Start reading at code 41Y.   42Y talks about front cockpit.  #4 cylinder.  
Thanks Walt
Mark Pennington 

On Fri, Jun 19, 2020 at 1:47 PM Walter Lannon <wlannon(at)shaw.ca (wlannon(at)shaw.ca)> wrote:

Quote:
I can confirm that #1 and #4 rear spark plugs are the correct location for the CHT sensors.
 
These are the two hottest cylinders.  There is manual information that identifies those and to which cockpit but I have no time right now to dig it up.
 
Cheers;
Walt
 
From: Mark Pennington (pennington.construction.inc.1(at)gmail.com)
Sent: Friday, June 19, 2020 6:14 AM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: Re: Re: Cylinder Head Temperature Gages
 

Good Morning Greg  
I fly a CJ with an M14P and my CHT sensors are on 1&2, not sure which is front and which is rear.  Not sure how the CJ comes from the factory with a Housai.  Or how a Yak with an M14P is wired either.
 
If you go to Dougs website and go to volume 5 and right click that book and open it up in a different tab or download it to your computer look at page 407, Figure 2-14-2 in the book.  It shows the complete wiring from the copper ring to the plug that plugs into your gauge. Yes there are two separate unrelated wire runs for the front and rear cockpits.  Two each of the assembly on page 407.
 
The sensor is a thermocouple and does not require any exterior voltage to work.  That is why it shows a cylinder head temp on the ground in the hangar with the master off.
 
From what I can tell, those of us that have the auto plug conversion kits on our planes remove the washer on the spark plug and of course install the thermocouple copper ring in its place.  Hopefully ensuring proper penetration into the cylinder head for good combustion.
 
You don't have to remove the washer on the plug, but I understand some folks do.
 
If you take a look at page 407 you can see there are two separate areas that have terminations that may be causing your shaking issues due to possible loose connections or broken wires.   On my aircraft I do not have the intermediate terminals closest to the plug shown on page 407.  The thermocouple attaches at the engine and runs straight to the plug on the rear of my CHT gauge.   Not sure all planes are or were wired per the book on page 407.    The thermocouple assembly under the cowl is the first set of screw terminals shown on page 407.
 
 
Hope this helps.  Please let us know what you found.  It may help others.
 
 
Mark Pennington
CJ6 Driver.
 
 
 
 
 
 
 


Virus-free. www.avast.com
 
On Fri, Jun 19, 2020 at 8:17 AM Greg Wrobel <clouddog22(at)gmail.com (clouddog22(at)gmail.com)> wrote:

Quote:
1&4 is the way it was when I bought it. My bad for assuming they were correct. So what you're saying is 2&7 are the hottest cylinders with 2 going to the front gage and 7 to the rear gage? Anyone else have  their temp probes connected to different cylinders?

Greg "Clouddog" Wrobel

 
On Fri, Jun 19, 2020, 06:17 Craig Payne <yakman285(at)gmail.com (yakman285(at)gmail.com)> wrote:

Quote:
So, washers on # 1 and #4 ?? I believe they belong on #2 and #7. Sounds like other issues going on with the wiring as well.
 
Craig Payne














- The Matronics Yak-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List
Back to top
pennington.construction.i
Guest





PostPosted: Sat Jun 20, 2020 3:43 am    Post subject: Cylinder Head Temperature Gages Reply with quote

Thank you dennis...

<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon>
Virus-free.
www.avast.com
<https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

On Sat, Jun 20, 2020 at 7:18 AM Anthony Savarese <
dsavarese0812(at)bellsouth.net> wrote:

[quote] Hi Mark,
Actually the Yak 52’s had both CHT probes on the rear plug of #4 cylinder
from the factory.

I never found out why both were on #4. But I guess they knew what they
were doing.

I knew #2 would always be hotter because I would test the cylinders with a
laser temperature instrument. But still I never changed the configuration


- The Matronics Yak-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List
Back to top
kiwi679



Joined: 08 Jul 2011
Posts: 20
Location: Netherlands

PostPosted: Sat Jun 20, 2020 4:14 am    Post subject: Cylinder Head Temperature Gages Reply with quote

Hi Mark,
Thank very much.

cheers Steve
Quote:
On 20 Jun 2020, at 11:35, Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:
Steve.

Website is. CJ6.com

Mark Pennington
On Sat, Jun 20, 2020 at 2:49 AM Stephen van Dijck <s.dijck(at)planet.nl (s.dijck(at)planet.nl)> wrote:
Quote:
Can someone send me Dougs website address.
thanks,
Steve
Quote:
On 20 Jun 2020, at 00:23, Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:
Dennis.
We have this cleared up for the Housai.

Is it the same for M14P. Cylinders 1 and 4. Number 4 for the front cockpit ?

Thanks
Mark
On Fri, Jun 19, 2020 at 6:16 PM Greg Wrobel <clouddog22(at)gmail.com (clouddog22(at)gmail.com)> wrote:
Quote:
Ok. At least I got everything connected to to the correct cylinders. 1&4. Now just following wire or swapping gages (rear to Front) to see if the problem follows. Y'all are great thanks a billion.Greg "Clouddog" Wrobel

On Fri, Jun 19, 2020, 14:25 Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:
Quote:
Walt.
<IMG_3892.jpg>


I am at the hangar with the tech manual for the Housai.

You are correct as usual. It is cylinders 1 and 4.

And Cylinder 4 goes to the front cockpit.

I have attached a photo of the page in the manual.

Start reading at code 41Y. 42Y talks about front cockpit. #4 cylinder.

Thanks Walt

Mark Pennington
On Fri, Jun 19, 2020 at 1:47 PM Walter Lannon <wlannon(at)shaw.ca (wlannon(at)shaw.ca)> wrote:
Quote:
I can confirm that #1 and #4 rear spark plugs are the correct location for the CHT sensors.

These are the two hottest cylinders. There is manual information that identifies those and to which cockpit but I have no time right now to dig it up.

Cheers;
Walt

From: Mark Pennington (pennington.construction.inc.1(at)gmail.com)
Sent: Friday, June 19, 2020 6:14 AM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: Re: Re: Cylinder Head Temperature Gages


Good Morning Greg
I fly a CJ with an M14P and my CHT sensors are on 1&2, not sure which is front and which is rear. Not sure how the CJ comes from the factory with a Housai. Or how a Yak with an M14P is wired either.

If you go to Dougs website and go to volume 5 and right click that book and open it up in a different tab or download it to your computer look at page 407, Figure 2-14-2 in the book. It shows the complete wiring from the copper ring to the plug that plugs into your gauge. Yes there are two separate unrelated wire runs for the front and rear cockpits. Two each of the assembly on page 407.

The sensor is a thermocouple and does not require any exterior voltage to work. That is why it shows a cylinder head temp on the ground in the hangar with the master off.

From what I can tell, those of us that have the auto plug conversion kits on our planes remove the washer on the spark plug and of course install the thermocouple copper ring in its place. Hopefully ensuring proper penetration into the cylinder head for good combustion.

You don't have to remove the washer on the plug, but I understand some folks do.

If you take a look at page 407 you can see there are two separate areas that have terminations that may be causing your shaking issues due to possible loose connections or broken wires. On my aircraft I do not have the intermediate terminals closest to the plug shown on page 407. The thermocouple attaches at the engine and runs straight to the plug on the rear of my CHT gauge. Not sure all planes are or were wired per the book on page 407. The thermocouple assembly under the cowl is the first set of screw terminals shown on page 407.


Hope this helps. Please let us know what you found. It may help others.


Mark Pennington
CJ6 Driver.








Virus-free. www.avast.com

On Fri, Jun 19, 2020 at 8:17 AM Greg Wrobel <clouddog22(at)gmail.com (clouddog22(at)gmail.com)> wrote:
Quote:
1&4 is the way it was when I bought it. My bad for assuming they were correct. So what you're saying is 2&7 are the hottest cylinders with 2 going to the front gage and 7 to the rear gage? Anyone else have their temp probes connected to different cylinders? Greg "Clouddog" Wrobel


On Fri, Jun 19, 2020, 06:17 Craig Payne <yakman285(at)gmail.com (yakman285(at)gmail.com)> wrote:
Quote:
So, washers on # 1 and #4 ?? I believe they belong on #2 and #7. Sounds like other issues going on with the wiring as well.

Craig Payne

















- The Matronics Yak-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List

_________________
regards Stephen
Back to top
View user's profile Send private message
Clouddog



Joined: 02 Jun 2016
Posts: 116
Location: Lebanon, TN

PostPosted: Sat Jun 20, 2020 4:58 am    Post subject: Cylinder Head Temperature Gages Reply with quote

Thanks for the info Mark. The back gage is normal again so perhaps my last backseater was giving me bad info as they are two separate systems. I'll start the wiring check.

Greg "Clouddog" Wrobel
On Fri, Jun 19, 2020, 09:22 Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:

Quote:
Good Morning Greg

I fly a CJ with an M14P and my CHT sensors are on 1&2, not sure which is front and which is rear.  Not sure how the CJ comes from the factory with a Housai.  Or how a Yak with an M14P is wired either.
If you go to Dougs website and go to volume 5 and right click that book and open it up in a different tab or download it to your computer look at page 407, Figure 2-14-2 in the book.  It shows the complete wiring from the copper ring to the plug that plugs into your gauge. Yes there are two separate unrelated wire runs for the front and rear cockpits.  Two each of the assembly on page 407.
The sensor is a thermocouple and does not require any exterior voltage to work.  That is why it shows a cylinder head temp on the ground in the hangar with the master off.
From what I can tell, those of us that have the auto plug conversion kits on our planes remove the washer on the spark plug and of course install the thermocouple copper ring in its place.  Hopefully ensuring proper penetration into the cylinder head for good combustion.
You don't have to remove the washer on the plug, but I understand some folks do.
If you take a look at page 407 you can see there are two separate areas that have terminations that may be causing your shaking issues due to possible loose connections or broken wires.   On my aircraft I do not have the intermediate terminals closest to the plug shown on page 407.  The thermocouple attaches at the engine and runs straight to the plug on the rear of my CHT gauge.   Not sure all planes are or were wired per the book on page 407.    The thermocouple assembly under the cowl is the first set of screw terminals shown on page 407.


Hope this helps.  Please let us know what you found.  It may help others.


Mark Pennington
CJ6 Driver.


Virus-free. www.avast.com [url=#m_-2219860867228605820_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2][/url]

On Fri, Jun 19, 2020 at 8:17 AM Greg Wrobel <clouddog22(at)gmail.com (clouddog22(at)gmail.com)> wrote:

Quote:
1&4 is the way it was when I bought it. My bad for assuming they were correct. So what you're saying is 2&7 are the hottest cylinders with 2 going to the front gage and 7 to the rear gage? Anyone else have  their temp probes connected to different cylinders?

Greg "Clouddog" Wrobel
On Fri, Jun 19, 2020, 06:17 Craig Payne <yakman285(at)gmail.com (yakman285(at)gmail.com)> wrote:

Quote:
So, washers on # 1 and #4 ?? I believe they belong on #2 and #7. Sounds like other issues going on with the wiring as well.
Craig Payne




- The Matronics Yak-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List
Back to top
View user's profile Send private message Send e-mail
Ttail



Joined: 24 Jun 2013
Posts: 118

PostPosted: Sat Jun 20, 2020 4:22 pm    Post subject: Re: Cylinder Head Temperature Gages Reply with quote

FWIW.

M14PF 700mm/70% 5000'AMSL 140kts IAS winter over Oz



- The Matronics Yak-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Yak-List

_________________
Sean Trestrail
ttail[at]internode.on.net
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> Yak-List All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group