24-01-2025, 10:39 AM
It has a 22FZB carburettor and this car has a engine heater which is used in winter so the choke is rarely if ever used. Around town it does 36mpg and on a run 50mpg. Both the top ring and it's groove are worn giving a 0.015” vertical play of the ring. I paid a visit to the Anson Museum on the volunteer day when there was a dozen or so ex Mirrlees and ERF members present and all they could suggest was lack of air filter or dirty oil but the car has an air filter and 1000 mile oil changes. One bright spark asked if they were Chinese pistons and rings something I'm becoming suspicious of, the pistons have a cast name Nownl. I do recall when I last had a block bored by by Cotterell Engineering they recommended using slipper pistons, what did they know?
I'm old enough to remember Cleveland Discol and now doubt that E10 is the cause particularly as there are a number of owners using it and nobody has reported this problem.
I'm old enough to remember Cleveland Discol and now doubt that E10 is the cause particularly as there are a number of owners using it and nobody has reported this problem.