Lotus Elan

rev counter disturbance

PostPost by: Grizzly » Wed Jan 15, 2020 3:22 pm

Chris
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PostPost by: weddingcarclive » Wed Jan 15, 2020 3:47 pm

cheers Chris
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PostPost by: Safi » Wed Jan 15, 2020 5:02 pm

thank you.
I have now fitted the new switch, but annoyingly it has not solved the original problem. if the problem was specific to one of the ignition related components, as opposed to all of them, it would be easier to solve. perhaps i should remove the rev counter, clean up all connections and see if that sorts it.

Pain in the a....!
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PostPost by: ericbushby » Wed Jan 15, 2020 6:19 pm

If you do take the rev. counter out, then it may be worth opening it up and replacing the electrolytic capacitors on the circuit board, unless this has already been done.
They may have a smoothing effect on incoming signals and they fade away with age, becoming less effective.
20 years is their normal life expectancy so it needs doing anyway.
Best of luck
Eric in Burnley
1967 S3SE DHC
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PostPost by: Safi » Wed Jan 15, 2020 11:13 pm

Thanks Eric

The instrument was sorted out by SWLC when the electronic ignition was fitted circa 2010, and it did work ok. However, I will talk to them about your suggestion and see what they say. With all 4 ignition components affected, and with the ignition switch now ruled out as a possible culprit, the arrows are pointing to the rev counter.

Thanks again

Jim
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