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Rotax 582 high EGT's

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NebraskaYak

Joined: 02 Sep 2008
Posts: 31
Location: Nebraska

Posted: Sun Apr 11, 2021 6:32 pm Post subject: Rotax 582 high EGT's

Hi All,



Just got my 582 powered plane out after winter hibernation. Everything was fine when we parked it and now both EGT's are trending high, right up to 1200 on takeoff and over 900 at 3000rpm. Never saw them so high before. Rebuilt fuel pump, checked carb floats, new fuel lines and filter, fresh gas and swapped egg gauge with no changes. Any ideas what would cause both to be so high all of a sudden?



Thanks for the help!

Andrew

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williamtsullivan(at)att.n
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Posted: Sun Apr 11, 2021 6:47 pm Post subject: Rotax 582 high EGT's

Is it fresh gas?



                                                                 Bill Sullivan

            

                                                                                        On Sunday, April 11, 2021, 10:34:47 PM EDT, NebraskaYak <andrew.malousek(at)comcast.net> wrote:                

                



                



                --> RotaxEngines-List message posted by: "NebraskaYak" <andrew.malousek(at)comcast.net (andrew.malousek(at)comcast.net)>



Hi All,



Just got my 582 powered plane out after winter hibernation. Everything was fine when we parked it and now both EGT's are trending high, right up to 1200 on takeoff and over 900 at 3000rpm. Never saw them so high before. Rebuilt fuel pump, checked carb floats, new fuel lines and filter, fresh gas and swapped egg gauge with no changes. Any ideas what would cause both to be so high all of a sudden?



Thanks for the help!



Andrew



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NebraskaYak

Joined: 02 Sep 2008
Posts: 31
Location: Nebraska

Posted: Sun Apr 11, 2021 6:55 pm Post subject: Re: Rotax 582 high EGT's

yep, drained and filled with fresh premix

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williamtsullivan(at)att.n
Guest

Posted: Mon Apr 12, 2021 6:13 am Post subject: Rotax 582 high EGT's

My only other thought is to check your connections.  Oxidation would cause a change in electrical resistance.  Pull the plugs, and clean the contact surfaces.



                                                     Bill Sullivan

            

                                                                                        On Sunday, April 11, 2021, 10:56:22 PM EDT, NebraskaYak <andrew.malousek(at)comcast.net> wrote:                

                



                



                --> RotaxEngines-List message posted by: "NebraskaYak" <andrew.malousek(at)comcast.net (andrew.malousek(at)comcast.net)>



yep, drained and filled with fresh premix



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skyguynca

Joined: 05 Jun 2006
Posts: 128

Posted: Mon Apr 12, 2021 7:03 am Post subject: Rotax 582 high EGT's

Seals are leaking, crankshaft seals probably. It will suck in air past the

seals and cause you to run lean.

They dry out and start leaking after years of being installed. Doesn't

matter how many hours. Long sits during winters without being preserved

properly can be the culprit too.



David



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ppsel03

Joined: 23 May 2014
Posts: 9

Posted: Tue Apr 13, 2021 4:51 am Post subject: Re: Rotax 582 high EGT's

 	  NebraskaYak wrote: 	
		  Hi All,



Just got my 582 powered plane out after winter hibernation. Everything was fine when we parked it and now both EGT's are trending high, right up to 1200 on takeoff and over 900 at 3000rpm. Never saw them so high before. Rebuilt fuel pump, checked carb floats, new fuel lines and filter, fresh gas and swapped egg gauge with no changes. Any ideas what would cause both to be so high all of a sudden?



Thanks for the help!

Andrew 	




Assuming you've 2 plugs per cylinder, One of the mags is not sparking.   Unburned fuel is burning in the exhaust.

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_________________
EuropaXS 914UL Turbo

Guy Buchanan

Joined: 16 Jul 2006
Posts: 1204
Location: Ramona, CA

Posted: Wed Apr 14, 2021 3:17 pm Post subject: Rotax 582 high EGT's

Check for an air leak at the boots. Unfortunately your crank seals may 

have dried and allow air to pass. There's a way to check but I don't 

remember it. I think there's a spec for crankcase vacuum or manifold 

vacuum that might tell you something about leakage.



On 4/11/2021 7:32 PM, NebraskaYak wrote:

 	  Quote: 	
		   



 Hi All,



 Just got my 582 powered plane out after winter hibernation. Everything was fine when we parked it and now both EGT's are trending high, right up to 1200 on takeoff and over 900 at 3000rpm. Never saw them so high before. Rebuilt fuel pump, checked carb floats, new fuel lines and filter, fresh gas and swapped egg gauge with no changes. Any ideas what would cause both to be so high all of a sudden?



 Thanks for the help!

 Andrew





 Read this topic online here:



 http://forums.matronics.com/viewtopic.php?p=501356#501356

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_________________
Guy Buchanan
Deceased K-IV 1200
A glider pilot too.

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