International Comanche Society

A maintenance forum for ICS members to share
knowledge and learn about their Comanche.

Problems? - Contact Administrator at: Webmaster

How much do you Lean?

Post a reply

How much do you Lean?

Postby Joseph Munoz » Mon Apr 29, 2013 8:34 pm

I was taught when leaning the fuel in the Comanche 250 to lean to 1250 on the egt and CHT below 400. Just wondering what numbers everyone else uses.
Joseph Munoz
 
Posts: 38
Joined: Fri Jun 15, 2012 4:57 am
Top

Re: How much do you Lean?

Postby James Turner » Mon Apr 29, 2013 10:57 pm

On my -180 below 75% power I lean to rough then en-richen to smooth. I find a bit of carb heat helps to smooth things out. On my JPI 930 that equates to about 20 degrees LOP on the leanest cylinder...

James.
User avatar
James Turner
 
Posts: 102
Joined: Wed Nov 30, 2011 5:20 am
Top

Re: How much do you Lean?

Postby Kevin Weidner » Tue Apr 30, 2013 2:51 am

I think these are both great bits of information in regards to this topic.

http://www.sportaviationonline.org/spor ... pg=32#pg28
http://www.lycoming.com/support/publica ... I1094D.pdf
User avatar
Kevin Weidner
ICS member
ICS member
 
Posts: 29
Joined: Sun Apr 19, 2009 6:58 pm
Top
Post a reply

Return to Maintenance - General

Who is online

Users browsing this forum: No registered users and 10 guests

Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group