Mailing List lml@lancaironline.net Message #23582
From: <Tubamanflies@aol.com>
Sender: Marvin Kaye <marv@lancaironline.net>
Subject: Re: [LML] IO360 Rough Idle When Warm/Hot
Date: Thu, 22 Apr 2004 08:34:23 -0400
To: <lml@lancaironline.net>
Check for air in the fuel.   Pull the lines to the injectors and do a flow test with them below the surface of fuel.  If you see bubbles that is your problem.  I had the seal in my boost pump go out which allowed air to be sucked in.  You will get air in before you get a fuel leak out. 

Ray

In a message dated 4/21/04 11:47:14 PM Central Daylight Time, nrgarvin@comcast.net writes:


Posting this for a friend. If anyone has experience with this problem and can suggest corrective action it would be appreciated.
-Neal Garvin
From: "KEITH WALKER" <KWALKER@PRECISIONAIR.COM>

I have an IO360 with rear mounted Bendix.(200HP), 1 regular mag and 1 rose electronic ignition, In a tightly cowled Glasair II. When the outside air temperature gets warm, IE above 60 deg F the engine idles rough and occasionally pops. It seems to get worse as the temperatures go up. It does not seem to do it at full power , only below 1800rpm. It does not seem to matter if the boost fuel pump is on or off, if the engine is running on the mag, elect ignition or both. I don't see much fluctuation in the egts when it is popping. Could it be fuel boiling? I have put fire sleeve on all the lines, including the spider to the injectors, and I have a cooling shroud on the fuel filter and the pump. any suggestions?

Regards

Keith Walker




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