12-06-2021, 10:01 PM
At first sight you wouldn’t think that this would be a problem, but on firing up the Cup again after realising that the problem with the carburettor was actually the fancy BTH magneto’s timing slipping (should have stuck to the tried & tested BLIC), I noticed that the oil pressure was only 6psi, from starting, with cold oil. Tried changing the pressure gauge – no change. Let it warm up gently - still 6psi, and it seems to stick to 6psi regardless of engine speed or temperature. Do I have a really effective oil pressure relief valve, or can anyone think of a better explanation for this, before I start pulling things apart?
Previously the oil pressure behaved in a normal Austin 7 fashion, off the scale when cold and a few psi when warm.
Previously the oil pressure behaved in a normal Austin 7 fashion, off the scale when cold and a few psi when warm.