Lotus Elan

Rough Idle - HELP!!

PostPost by: CG901 » Tue Aug 20, 2019 12:17 am

The rotor arm was checked for run-out when the engine was built a year ago. I believe the issue is strictly with this defective cap. The rotor didn't contact the cap contact of #4 . The post was badly machined when installed in the cap. It was like this when I installed it. I should have replaced the cap then.
Current: 1965 S1.5 26/4004, 1966 S3 FHC 36/5192, 1958 Fiat Abarth 750GT Zagato, 1967 Brabham BT21B, 1988 Arrows A10B-04, 1991 Brun C91-001.
Past: 1971 Elan S4/SE DHC, 1972 Europa Special, 1980 Esprit Turbo, 1988 March 881-05, 1990 Leyton House CG90105
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PostPost by: William2 » Tue Aug 20, 2019 11:02 am

I had a similar problem and it turned out to be a blockage in the idle circuit that even an expert couldn't shift. Ended up fitting a rebuilt set of Dellortos that did the trick.
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