exhaust valve sticking open on 4th cylinder of my sporty


Is there any modifications that can be done to ensure this problem doesnt reoccur?
This does happen to be quite a problem with these cars, as there have been a few being advertised with this fault.


Have you tried freeing it with redex or light engine oil? Raise the revs and pour slowly into the carb direct into the petrol/air mixture and watch the blue smoke from the exhaust. Leave for a while then rev the engine. It will free sticking valves - method used when I was a student! Good luck.