No Oil Pressure

[rollin_on_18_strong]

Hi all, i dont have my RB20 running yet but i have had it cranking over for a good few minutes and it just wont pick up oil pressure, should i wait to see if it will pick it up once i finally get it started or be pulling it down now?

cheers

[Simon-S14]

hmmm, the stock gauge and light doesnt really read anything when cranking over i have found, best way to see if you have oil flowing through the motor is to take the turbo feed banjo off and see if you have oil coming out while cranking.

[rollin_on_18_strong]

yeah i done that, no oil coming out

[rockabilly]

hi mate. take the oil filter off. then pour new oil down the outer ring of the oil pump housing and slowly turn the crank anti clockwise. is the motor a fresh rebuild?. if yes did you a prime the pump with oil first when it was upside down with the sump off?. it will never pick up if you have not primed the oil pump,, first rule of engine rebuilding..

Edited November 19, 2007 by rockabilly

[nissan200sx.dk]

had to crank my rb25 for a couple of minuttes before oil pressure... oil filter, oil cooler etc has to fill up first....

Take plugs out to get it cranking faster, together with a fresh battery.

[rollin_on_18_strong]

Hi, thanks all who replied, the motor is not rebuilt. it has just been sitting around for a long time, on its side, upside down, who knows!

I have removed the plugs and have a fresh battery, it is cranking over fast. Had i rebuilt the motor or re-newed the oil pump i whould have filled it with vaso. but that is not the case.

I will try to pour some oil back through that hole to the pump.

Thanks again

[rollin_on_18_strong]

SORTED.

I jacked the rear of the vehicle up to a very steep angle, and fed a small pipe into the block where the oil filter bolts on. i funneled 2 cups of oil in, then refitted the filter.

Now i have 30psi while cranking

Thanks guys

[nissan200sx.dk]

Sweet-

[rockabilly]

no probs mate. its just drained back after being stood so long.. the oil pump needs vacumn to work, hence pouring oil down the filter hole..bernie uk