Help No Oil Pressure At Idle!!!

[DirtyDiesel]

i recently rebuilt my motor and i fiannally got it put back in completely and fired er off. or tried to i should say. it wouldnt crank(naturally) and i sprayed some brake clean in er to get it goin and she did fire off. but when i bring it down to idle it looses oil pressure like REAL quick and shuts off. the motor has all new, bearings, injectors, and lifters.it never did that before i took the motor out. any ideas what it could be. im stumped

[mschn99]

have you tried pre filling the high pressure oil resevour?? it can take 10-20 full cranking cycles after a full overhaul to get oil into the full high pressure oil system. DONT USE brake clean or ether..use WD 40.....

[DirtyDiesel]

i tried WD-40 but it didnt do anything. no i did not could that be what it is even tho it runs fine if you hold your foot on the gas

[mschn99]

Originally Posted by dirtydiesel

i tried WD-40 but it didnt do anything. no i did not could that be what it is even tho it runs fine if you hold your foot on the gas

get it started and keep your foot on the throttle for a good five minutes and see what happens. Watch the oil pressure gauge close. see if you can purge the air out of the system to either rule that out or not......if it will run well after that...DONT SHUT IT OFF...check for leaks...then go run it hard for about 15 miles and then come back and do your final checks....

[DirtyDiesel]

it seems to be leakin a little out of the rear up by the turbo but above the base and o-rings but it is only like a drip every 5 seconds or so. dont know what that is

[mschn99]

Originally Posted by dirtydiesel

it seems to be leakin a little out of the rear up by the turbo but above the base and o-rings but it is only like a drip every 5 seconds or so. dont know what that is

thats probably the EBP valve actuator....id guess anyways...which shouldnt affect starting. Check the valley to make sure you dont have a major HPOP leak though....

[DirtyDiesel]

no oil in the valley and the EBPV is gutted... and i left the plug to it unpluged. the oil is drippin down the driverside exhaust pipe

[mschn99]

Originally Posted by dirtydiesel

no oil in the valley and the EBPV is gutted... and i left the plug to it unpluged. the oil is drippin down the driverside exhaust pipe

the actuator for the epbv could still be leaking...even if its not hooked up....

could be o rings from teh turbo to the pedestal too...tough to say from where im sitting for sure....there isnt much back there to leak unless the oil is blowby coming through the exaust on that bank....

[DirtyDiesel]

i thought it might be that because its even uyp on the exhaust side of the turbo where the turbo crests and starts to go down its up there but i cant seem to see any comin out of there

[DirtyDiesel]

and also why wont it startwithout sprayin it