Yuo can not get a good reading with those eletc. gauges. Check it with a mechanical oue, and go from there. 25 to 30 idleing is good. Us 30 weight oil.
on my crapy meter it looks 40 at idel then goes up 60 psi at 3200
I don't know if its an issue? motor sounds ok and boat and boat runs around 20 knots with out pushing to hard temp looks ok
just not sure?
Any GM based engine with "with only a couple od psi at idle" is a questionable set of main and/or rod bearings and will spit a rod at any time. GM oil pressure warning lights will usually trip off at anything under 7 psi.
A GM engine with a "tight" bottom end should put out around 35-45 psi idleing or otherwise (with a standard volume/pressure type pump).
GM oil filter adapters have a built in bypass pressure system, They typically only filter approx 60% of the oil. This is so when your oil filter gets excessively dirty (creating added pressure) you don't burst the filter canister.
GM oil pumps have a built in bypass pressure system, They typically only filter approx 60% of the oil. This is so when your oil filter gets excessively dirty (creating added pressure) you don't burst the filter canister.
HUH? The spring in the pump is just there to bleed off pressure when cold or high RPM's. Your thinking of the oil filter adapter that the oil filter screws onto which is bolted into the block. Thats the bypass for when the filter gets dirty. The springs in the oil pump can be changed for more or less pressure.
HUH? The spring in the pump is just there to bleed off pressure when cold or high RPM's. Your thinking of the oil filter adapter that the oil filter screws onto which is bolted into the block. Thats the bypass for when the filter gets dirty. The springs in the oil pump can be changed for more or less pressure.
