A aviation & planes forum. AviationBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » AviationBanter forum » rec.aviation newsgroups » Owning
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Strange engine event



 
 
Thread Tools Display Modes
  #1  
Old June 24th 04, 04:39 PM
external usenet poster
 
Posts: n/a
Default

I'm no expert, but the symptoms seem compatible with a partially obstructed
fuel injector. This would cause the mixture in the affected cylinder to be
leaned (ergo higher EGT if you are running ROP) and power to decrease (ergo
reduction in CHT).

From your post I can't tell if the temps stayed at their altered values on
subsequent flights or reverted to the "before t = 0" norm. If my guess is
right, the latter would indicate that whatever was clogging the injector
passed through. If the temps are still shifted, I'd have my mechanic check
the #1 injector.

BTW, this doesn't sound like an instrumentation problem since it's unlikely
that both the EGT and CHT probes and/or receiving units would go bad at the
same time.

--
-Elliott Drucker
  #2  
Old June 25th 04, 12:04 PM
Paul Mennen
external usenet poster
 
Posts: n/a
Default

"PaulH" wrote
Were you running lean, rich, peak? Fuel injected?


Yes it is Fuel injected (I did mention that it was an IO550).
I was running 14.8gph at WOT (which is LOP).
OAT was 52F, OilT was 188F, TAS was 160Kts, Alt was 12000ft.

I'm no expert, but the symptoms seem compatible with a partially
obstructed fuel injector. This would cause the mixture in the affected
cylinder to be leaned (ergo higher EGT if you are running ROP) and power

to decrease (ergo reduction in CHT).
-Elliott Drucker


Yes I agree that would be consistent. Although aren't there many
other explanations for the same phenomina?

From your post I can't tell if the temps stayed at their altered values
on subsequent flights or reverted to the "before t = 0" norm.


Yes I forgot to mention - on subsequent flights everything reverted
to normal.

Thanks for your inputs

~Paul

 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Proposals for air breathing hypersonic craft. I Robert Clark Military Aviation 2 May 26th 04 06:42 PM
My Engine Fire!! [email protected] Owning 1 March 31st 04 01:41 PM
Car engine FAA certified for airplane use Cy Galley Home Built 10 February 6th 04 03:03 PM
What if the germans... Charles Gray Military Aviation 119 January 26th 04 11:20 PM
Corky's engine choice Corky Scott Home Built 39 August 8th 03 04:29 AM


All times are GMT +1. The time now is 05:04 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 AviationBanter.
The comments are property of their posters.