After one of the MGRV8 Facebook group members commented that they cured a misfire by replacing the distributor pickup module I thought I better check it out.
It was very obvious at first sight that the rotor was very rusty …. although I couldn’t see how that could cause the problem but it still would be best to clean it up.
Reassembled and checked the gap between the rotor tip and pickup was correct at between 0.2-0.35mm using a non ferrous gauge. I found some plastic packaging I used that I measured to be 0.3mm thick with a vernier. Slackened the 2 brass screws held it shut with the plastic gauge in place and re- tightened the screws.
A new pickup module is about £30 but will wait till I do some more tests on the Airflow Meter.
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