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 

Fuel pump cooling

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> RV-List
View previous topic :: View next topic  
Author Message
recapen(at)earthlink.net
Guest





PostPosted: Tue Sep 11, 2012 3:27 am    Post subject: Fuel pump cooling Reply with quote

For those of you that have installed a cooling shroud on your fuel pump, are you using the entire inch diameter for the flange hole to steal the air? Is it enough / too much?

I'm thinking I might open it the full inch and put inserts to reduce it...but then how do I know what's enough.....

Ralph


- The Matronics RV-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?RV-List
Back to top
n223rv(at)wolflakeairport
Guest





PostPosted: Tue Sep 11, 2012 5:14 am    Post subject: Fuel pump cooling Reply with quote

I used the 3/4" Vans corrugated cooling tube. It fits nicely inside the cooling shroud inlet.

Not sure if I have too little cooling. It seems to work well on my RV-10

-Mike Kraus
RV-10 Flying

Sent from my iPhone

On Sep 11, 2012, at 7:27 AM, "Ralph E. Capen" <recapen(at)earthlink.net> wrote:

Quote:


For those of you that have installed a cooling shroud on your fuel pump, are you using the entire inch diameter for the flange hole to steal the air? Is it enough / too much?

I'm thinking I might open it the full inch and put inserts to reduce it...but then how do I know what's enough.....

Ralph








- The Matronics RV-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?RV-List
Back to top
recapen(at)earthlink.net
Guest





PostPosted: Tue Sep 11, 2012 5:39 am    Post subject: Fuel pump cooling Reply with quote

Mike,

Thanks for the info - I'm guessing that you don't have any hot-start problems or other evidence of vapor-lock.

This would seem to be a good starting point...

Ralph
--


- The Matronics RV-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?RV-List
Back to top
mr.sun



Joined: 30 Jan 2007
Posts: 85

PostPosted: Tue Sep 11, 2012 6:33 am    Post subject: Fuel pump cooling Reply with quote

I have been following this fuel pump cooling thread and wonder if I need to cool my pump.   My RV7 has fuel injection with no return line and a black cowl.  If I'm not careful on a hot day, it is tough to restart after a short shutdown. 

Does cooling the pump during flight do anything to reduce the heat soaking of the fuel & lines during the shut down?  I was wondering about perhaps some race car insulation on the injector lines coming out of the spider on top of the engine.

Question is, though, is it worth it?   Has anyone found it makes a difference?

Greg

do not archive

On Tue, Sep 11, 2012 at 6:38 AM, Ralph E. Capen <recapen(at)earthlink.net (recapen(at)earthlink.net)> wrote:
[quote]--> RV-List message posted by: "Ralph E. Capen" <recapen(at)earthlink.net (recapen(at)earthlink.net)>


Mike,

Thanks for the info - I'm guessing that you don't have any hot-start problems or other evidence of vapor-lock.

This would seem to be a good starting point...

Ralph


--


- The Matronics RV-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?RV-List

_________________
Greg RV-7
Back to top
View user's profile Send private message
n223rv(at)wolflakeairport
Guest





PostPosted: Tue Sep 11, 2012 6:33 am    Post subject: Fuel pump cooling Reply with quote

I have an RV-10 with a fuel purge valve. So hot starts are not a problem. No idea how much the fuel pump air helps, but Logic says it has to.

-Mike

Sent from my iPhone

On Sep 11, 2012, at 9:38 AM, "Ralph E. Capen" <recapen(at)earthlink.net> wrote:

[quote]

Mike,

Thanks for the info - I'm guessing that you don't have any hot-start problems or other evidence of vapor-lock.

This would seem to be a good starting point...

Ralph


--


- The Matronics RV-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?RV-List
Back to top
recapen(at)earthlink.net
Guest





PostPosted: Tue Sep 11, 2012 6:59 am    Post subject: Fuel pump cooling Reply with quote

Like Mike I have the purge valve. I use the purge valve for hot-restarts and the pump cooler would start cooling the pump immediatel after restart which would prevent ongoing issues. I do get a little roughness right after a hot-restart and I have been running the rpm up to combat that...I think this will help - hence its installation.

The only thing that it would help would be to remove heat when the engine is actually running. Without an auxilliary blower, nothing happens when the engine's not running.

--


- The Matronics RV-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?RV-List
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> RV-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