robbiet24

just wondering what my oil pressure on a 94 WRX import just put another engine in it and iam getting about 50 PSI when its reved up iam thinkin thats maybe slighty low as it was reading about 80 before i fitted the oil cooler

prodriverules

iTrader: (52)

That is defo to low mate if that is holding revs at or above 3k rpm

robbiet24

any ideas why it could be so low?

prodriverules

iTrader: (52)

Could be a number of things,worn oil pump,worn main bearings etc

robbiet24

it was about 80 psi when i put the engine in but i had problems getting it to run so had to change the inlet manifold and also fitted the oil cooler off the old engine as this one didnt have it, is there any way i could have fitted that wrong?

prodriverules

iTrader: (52)

Might be with the added oil capacity it is now pushing with the cooler in place a problem if there is one has become more evident.

robbiet24

just been out to have a look at it and i must have poured in to much oil after fitting the cooler its a bit higher than high on the dipstick, could this cause a problem with the pressure

MOTORS S GT

iTrader: (2)

What did the previous engine die off ?, if it was any sort of bearing failure & you have just reconnected the old oil cooler back into the system, you have just pumped all the crap back through your new engine.

mickywrx

iTrader: (29)

That, and is the oil cooler controlled by a thermostat?

If it is, and you haven't pre-filled it, you going to have an oil level drop, and quite probably pressure drop when the thermostat opens.

robbiet24

last engine died of a melted piston but i have solved the problem, it was a bad earth to the sender unit for the gauge