New Zealand Datsun Club

hey guys. just recently rebuilt my a15 engine and now that its altogether and ready to go i cant get any oil preasure up. it has a brand new oil pump which i primed before i put it in , i also put a tube in the oil pick up and sucked on it to make sure the pick up was working . if you think of any thing that i could use to assist me in this situation it would be much appreciated!! . cheers

How are you checking for pressure? Mechanical gauge?

just going off the oil light on the car. pulled the preasure switch out to see if any oil would come out when i turn it over
but there was nothing

That's curious.
I had a really knacker A15 once that had no pressure. But I filled it with lucas/mooreys and it came up really quick.
You haven't done something silly like put standard bearing shells on a reground crank have you?

Have you put oil in it

its got oil in it . i put all new bearings in to fit the reground crank.
i put penrite 15w- 40 running in oil in it which was sugested from the machine shop.

My advice: hook up a mechanical gauge see whats what

yea il grab one from work on monday. cheers

Dirty D wrote:just going off the oil light on the car. pulled the preasure switch out to see if any oil would come out when i turn it over
but there was nothing

This doesn't sound like a switch or gauge problem. Sounds like pump isn't supplying, could be air leak in oil pick up, (or not attached), or a fault in the pump, although with the switch being right on the pump even with a faulty relief valve you would expect some oil at the switch.

Yeh there doesnt seem ant point in hooking up a mechanical gauge if there is no oil at the point you will be testing....