How To Check If Oil Pump Is Broken

[SECURITY]

ive taken my oil pump off my car as i had low oil pressure after my rebuild. the problem i have now is how to check that my oil pump is broken by inspection. i need to know if its my clearances and not my oil pump before i go spending 500 on a new oil pump.

[HR32_GTS-T]

what oil were u using because if the oil is to thin that results in low oil pressure as well i would of checked that b4 i pulled off the oil pump

[SECURITY]

if it was just thin oil i was worried about i wouldnt have written this thread.

anyways, the oil pump feels really notchy and we've almost got it apart (those screws are tight buggers). new bearings are going in as my old ones have worn down to the brass. and ive already put an n1 pump on there.

and for the people who search this topic later on, you're meant to take the pump apart and check for score marks on it. it is also meant to be turning smoothly on the bearing. and mine most definately isnt.

[samuri]

On 3/17/2006 at 6:37 PM, HR32_GTS-T said:

what oil were u using because if the oil is to thin that results in low oil pressure as well i would of checked that b4 i pulled off the oil pump

What value pressure is considered low or dangerous.

Mine never fluctuated from 3.9kg per square cm

but now ranges from 1.9 to 3.8  depending on the revs once the engine is warm.

I now use full synthetic but surely that can be the reason?

[Dale FZ1]

12 hours ago, samuri said:

What value pressure is considered low or dangerous.

Mine never fluctuated from 3.9kg per square cm

but now ranges from 1.9 to 3.8  depending on the revs once the engine is warm.

I now use full synthetic but surely that can be the reason?

Try changing to a different oil.

HPR30 Penrite ought to give very different values on your gauge, even if it's standard OEM one