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Tim's engine running hot

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GenGrumpy(at)aol.com
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Posted: Mon Apr 10, 2006 6:57 pm Post subject: Tim's engine running hot

Tim,

  

 I was caught by your comments on the one flight where you had the hight CHTs on climb out.

  

 Have you experienced this before?

  

 Those of us in the warmer southern climates will have to worry about heating a lot, so if you can shed more light on the engine cooling issue, we'd all appreciate it.

  

 Thanks - Grumpy

 #40404

  

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Tim(at)MyRV10.com
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Posted: Mon Apr 10, 2006 7:44 pm Post subject: Tim's engine running hot

Well, the story isn't as big as I was worried it was.  When in

Wisconsin, at 30F OAT, I was trying to keep the CHT's below 400

for the most part.  #1 was my hottest, and just before the trip I

decided to trim the air dam in front of Cyl. 1 by about 3/8" to

give it more cooling.  Well, now #2 is the hottest.  I'll probably

trim 1/8" off of #2 as well.   But, on climbouts with OAT's in

the 70's-80's, I was not able to keep it reasonably below 400.

I didn't know what the max was, so I called both Vic for

his opinion, and Bart at Aerosport for his.  They both coincided.

They said I shouldn't worry about temps like 435F or more

on climbout and that engine can handle 500.   So I tested the

theory.  On

climbout from SNF and on my route home, I just climbed anyway,

ignoring my self-assigned warning of 400 and 417 on my EIS.

Sure enough, I only hit about 436, even in extended climbs,

and that's with a new engine.  Vic says after about 50-60 hours,

the temps go down a bit yet too.



So, you *may* end up trimming your front cyl. air dams (or you

maybe won't, too), but I think you'll end up finding cooling

should be OK.   My oil temps usually hung around 185, with

highs around 195-197 I think.



Tim Olson - RV-10 N104CD - Flying

do not archive

GenGrumpy(at)aol.com wrote:

 	  Quote: 	
		   Tim,

  

 I was caught by your comments on the one flight where you had the hight 

 CHTs on climb out.

  

 Have you experienced this before?

  

 Those of us in the warmer southern climates will have to worry about 

 heating a lot, so if you can shed more light on the engine cooling 

 issue, we'd all appreciate it.

  

 Thanks - Grumpy

 #40404

  

 DO NOT ARCHIVE

- The Matronics RV10-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?RV10-List

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