Too much oil pressure?
Posted: Tue Apr 19, 2022 9:51 pm
When I rebuilt the engine on the Dexta, I never checked the oil pressure with a gauge, just checked there was oil to the rockers and the light went out. Every time I would start it I noticed the oil light would go out before the engine had even started and was just cranking, and would not turn back on until 30seconds - 2 mins after I’d switched it off, depending how warm the engine was.
On its first proper outing yesterday after running for about an hour it blew through the oil pressure switch. Before replacing the switch I borrowed a test gauge that showed 80psi at idle rising up to 90psi at 3/4 revs. Should I be concerned at this pressure? Going by what I can see online it should be around 40psi and max 60psi before the relief valve opens. Could it just be a badly calibrated gauge and a dodgy switch, or is there something else I should be looking for?
Thanks
On its first proper outing yesterday after running for about an hour it blew through the oil pressure switch. Before replacing the switch I borrowed a test gauge that showed 80psi at idle rising up to 90psi at 3/4 revs. Should I be concerned at this pressure? Going by what I can see online it should be around 40psi and max 60psi before the relief valve opens. Could it just be a badly calibrated gauge and a dodgy switch, or is there something else I should be looking for?
Thanks