<VV> Exhaust Temps

JVHRoberts@aol.com JVHRoberts@aol.com
Thu, 9 Sep 2004 18:04:44 EDT


Been there, done that. Your carbs are out of sync. You need to make sure you 
have the same vacuum on both sides of the engine, and that the idle mixture is 
matched on both sides of the engine. 

In a message dated 9/9/2004 9:11:50 AM Eastern Standard Time, 
douglas.t.brown@navy.mil writes:
I just did a tune up on my 140 and noticed the sound of the left exhaust was 
not as pronounced as the right.  I can only describe it as wispy or feathery, 
as if there were a slight leak, but there isn't.  So I put my hand behind the 
pipe to feel the output.  The left one was not as hot as the right.  The pulse 
is even, but the temperature is considerably lower.  
When I did my valve adjustment after a recent rebuild, I did them cold, and 
only turned the nuts 1/4 turn past contact.  Could I have valves on that side 
that aren't opening all the way (or not closing)?  Has anyone experienced a 
similar difference in exhaust tone and temp?  Power seems normal, although my 
last 140 drive was years ago, so I'm guessing.

Toby Brown
San Diego CC