[DML] Re: Yet another Idle question

["Bill Koenig" <dmc06976@xxxxxxxx>]

Thanks for all of the responses!  I will take all of these suggestions 
and do a little more troubleshooting.

To answer a few questions:

Yes, it was idling fine consistently prior to the tune-up I did back in 
February of last year.  I cleaned up the valley, POR-15'ed it, and 
replaced rotor, dist cap, plugs, plug wires, coil, belts, cleaned 
injectors, fuel filter, main fuel line, and maybe some other things I 
forgot about since that time.  

Since then, it started idling very high after it warmed up, but not 
always.  Sometimes when I come to a stoplight after driving its around 
800rpm, but most of the time its 1500+.  It seems like its gradually 
getting worse.

My brass idle mixture screws have their heads snapped off. I have new 
ones but since I don't think they are leaking, I wasn't going to 
replace them yet.  I have taken the throttle linkage apart and put it 
back together at least three times.  I had Dave Swingle take a look at 
the throttle micro switch during the Pittsburgh Tech Session, it seemed 
to be a little sketchy then - like sometimes after revving the engine 
it would return to 800rpm, other times it would not.  I will look at 
that a little more closely also, and also the idle speed motor.  

Thanks again for all of the suggestions!




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