Date: Tue, 18 Apr 2006 00:21:24 -0400
From: Finn Lassen <finn.lassen@verizon.net>
Subject: Re: [FlyRotary] Typical EGT
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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It's be quite a while, but check timing. I saw pretty high EGTs until I 
adjusted timing, I think.

Finn

John Slade wrote:

> Rotarians,
> When I installed my T04 turbo I must have damaged the EGT probe. I was 
> seeing 500F on take-off. Today I installed a new probe and it looks 
> like the new turbo runs a lot hotter than the old one. While 
> installing the new probe I noticed that the ceramic coating on the 
> turbo had turned to dust.
>
> On take-off today I saw 1730 and the EGT alarm went off. I backed off 
> the throttle and flew with it down around 1600, but that only gets me 
> around 4500 rpm and zero boost. Bring it up to 5000 rpm and I see 
> 1650. This is with the mixture a little higher than mid scale. Richen 
> the mixture a tad and I can reduce EGT by 30 F or so. If I bring the 
> rpm up to 5300 the EGT is up to 1700 pretty quickly. Oil and coolant 
> temps are fine at around 180 - 190. I put 3.3 hours on the plane today 
> with no other issues, but at 4500 rpm I don't get there very fast. :(
>
> What do other rotary flyers consider max EGT, and what could be 
> causing it to be so high (if this is really high)?
> John
> N96PM
> 60.5 Hrs.
>
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