[NSRCA-discussion] OS 140RX Need Help

[Ed Alt]

You may have other issues as per previous suggestions (bearing, clogs etc),
but it could also be the low speed needle setting.  A too rich setting will
cause it quit at idle and load up in the midrange.   

 

Ed

 

From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Lisa n Larry
Sent: Saturday, August 08, 2009 9:57 PM
To: 'General pattern discussion'
Subject: [NSRCA-discussion] OS 140RX Need Help

 

I'm trying to get a plane going to make the Quincy, OH contest next weekend.

 

When running at idle or the engine isn't running, fuel leaks out of the
carb. I can get it started, but loads up in about ten seconds and bogs down
and dies when increasing the throttle.

 

If I pinch the fuel line, it leans out and recovers. As long as I stay near
full throttle it's fine.When at half throttle and lower it will bog down..

 

HS needle is at about 1-3/4 out leaned from about 2 turns out. I don't know
the pump settings.

 

This is a used engine already installed in a plane.

 

Is it just a matter of the pump pressure being too high or do I have other
problems to deal with.???

 

Larry Diamond

NSRCA 3083

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