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idle speed 140-160 1972

posted by  someone claiming to be Ira Eisenberg on  Mon Apr 24 03:27 CST 2006 [RELATED]

On my 1972 164 with fuel injection, I am having two idle related problems which I think are unrelated.

1. I cant get the idle below about 1100-1200 RPM although the idle screw is turned all the way in. I have checked and cleaned the air slide. Then I replaced the mechanical air slide with an electrical one from an early 240. No change. All hoses are in very good condition. Maybe a very small vacuum leak which I have not yet located is the culprit.

2. If the engine is shut off when warm and restarted when still warm, the idle is about 500 RPM for a minute and then returns to the 1100-1200 range. Injectors were just serviced by Rich Jensen-Cruzin Performance. They leaked and had poor spray pattern before servicing so I concluded unburned gas leaking into the cylinder was the culprit.

All suggestions cheerfully accepted. Thanks






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