RALLDU

Just did a head and cam install and have no oil pressure. Checked sensor its not broken and checked pump everything looks right. its a new ported and polished ls6 pump and it has been shimmed for a double roller timing chain. Also i dont know if its the problem but i left off the front cover and balancer when i went to start it incase i needed to make any timing adjustments. this is a 98 ls1 ws6.

RALLDU

and other question, is there any other ways to check for oil pressure just in case it is my gauge or sender thats messed up. thanks

lowchevy2go

iTrader: (4)

DUDE I HAVE THE SAME PROBLEM. I just finished my ms3 cam/head install with a tsp ported ls6 pump and double roller and when the car heats up im only gettin like 18-19 psi. its scarin the crap out of me. When i barely give it gas it jumps to 40 psi. i dont like it at all.

RALLDU

i mean i have no oil pressure at all. started the car and the needle didnt budge at all. took the oil pump cover off no oil in it. no pressure at all. NNNEEEEDDDDD HHHHEEEELLLLLPPPPPP. ANY ONE. ANY TIPS WOULD BE GREAT.

99blancoSS

iTrader: (115)

pinched o ring

RALLDU

if it is a pinched o-ring how do you check it. take the pick up tube loose and check for what. if thats the case do you replace the o ring or what.

Tally TransAm

iTrader: (17)

yes you just replace the o ring, im betting that is what the problem is too

Billy177

ovbious but can be overlooked. is there oil in the car?

vodas00ss

iTrader: (14)

almost positive the o-ring is pinched. take the front cover back off and lower the pan get to the sump. replace that o-ring and make sure you go up easy and even with it when you put it back together.

RALLDU

nxt question. will the from cover being off and not having the balancer on affect this at all. because neither are installed.

Spinmonster

You are trying to run the car with the front cover off and no balancer? Spinning the car by the starter wont show the oil pressure.

Having the front cover off isn't spilling the oil everywhere even while not running? The oil pan holds all of the oil and you can take the cover off without it spilling out?

Can an oil pump be changed without draining the oil?

Z'mnypit

iTrader: (58)

Sure can. Im betting the o-ring is pinched. Is it a new one? Or is it the same one from your old pump?

daryl2cb@yahoo.com

iTrader: (2)

Thinking oring here a well.

Bill's 02 Z-28 SS

Hi Folks
With the new ported and polished ls6 pump for a double roller timing chain, I would bet it is the O ring also. When I did my conversion, it was very hard to get the tube and the O ring back into the oil pump - very easy to cut the O ring. A lot work but install a new O Ring and save the time and pain.
Bill

SUX2BU

iTrader: (14)

I take the oil pump apart and install just the casting first it is ALOT easier to install correctly and you can see if the o ring is pinched very easily.
One "ported and coated" oil pump i installed had NO oil pressure at all. i took the cover off the oil pump and who ever did the work to the oil pump left out the pressure piston and spring. so the oil pump could not suck up any oil.
pull the cover off the pump and you can easilly see if the o ring is pinched and if the piston is there.