a98ws6

iTrader: (48)

Well I finally installed the motor I have in the sig. It sat for about 8 months with no oil pan, or timing cover but had a bag over it so it didnt get dirty. Well after the install, I fired it up and saw 0 oil pressure Well I looked all over the site and figured it was the o-ring to the pick up tube. Well I got it out and it was a little squared off but not torn or anything. Well I replaced it anyway and re-installed the oil pump. I then bolted up the pan and filled it with oil. I un hooked the coil packs and tried turning over the motor to build pressure. Still 0 pressure. 0 on the pressure gauge. There is 0 oil getting to the top of the motor Then we opened up the oil pump and found the new, fresh oil we just put in it???Is the pump just barely working enough to get into the pump itself but not enough to get to the top of the motor? Am I overlooking something? Did I do something wrong with what I did? On a side note, the oil pump is a low mileage ported pump that came with the motor I bought. It had no issues before but I guess it could have went bad from sitting???
Please help guys! I am lost

blacktransam

iTrader: (13)

first and fore most... make sure your sender is in place and pluged in.. i have seen quite a few of the break off.... it can take up to 2 mins of run time to get oil to the rockers... don't know why bet i have seen it take that long...

Boostaholic

iTrader: (4)

Take off your oil filter, is oil making it that far?

a98ws6

iTrader: (48)

Well the car ran for almost a minute with no oil pressure before I shut it off. I had the valve covers off and they got no oil at all. I shouldnt just keep it running. No oil on the gauge. The sending unit is new.

a98ws6

iTrader: (48)

Well after we ran the car for a minute with no oil we wanted to check the pump so we drained the pan and pulled off the filter. It had oil in it so I guess its getting oil that far. Just bone dry up top, and zero on the gauge????

Boostaholic

iTrader: (4)

Is the oil pump new? If its not too hard, take the allan bolt out of the bottom where the spring is and make sure the little valve in there still moves, thats the part that siezes up and makes these things quit working.

Boostaholic

iTrader: (4)

Oh and 1 minute is MORE than enough time to get oil press on a fresh motor, it should take a few seconds, mine probably took 12 seconds to finally get pressure to the sending unit the first start, which made me really nervious, we actually cut the motor after a few seconds of no pressure and pulled the filter, then cranked it over without the filter until oil got there, put the filter back on and fired it up again getting 60+psi

a98ws6

iTrader: (48)

It is not a new pump. It was used on the motor I bought. It had low mileage (10K miles or so) and was a ported oil pump. It had no issues but the motor sat for about 8 months or more, so I dont know if that has anything to do with it?

blacktransam

iTrader: (13)

if it ran for a minute and didn't knock or seaze then ur getting oil to the bearings... check that sender again.. right now it could be multiple things but my moneys on the sender

itchygomey98

iTrader: (2)

I agree it should have made a bunch of noise, but he said there's no oil to the rockers at all.

Jason99T/A

iTrader: (21)

Did you install the oil galley plug behind the rear cover? Did you make sure the oil galley freeze plug was still in place behind the front cover? If it was a used block, the freeze plug should be there, unless it was removed at the machine shop,etc.

Jason

Chris@AP-Engineering

iTrader: (-2)

Check the two things that Jason just mentioned. It sounds like it could be one of them.

mzoomora

iTrader: (36)

I would think that the computer must be seeing some oil pressure, because Im pretty sure they have a low oil pressure ignition kill. I could be wrong on that one though, it may also be timed.

KimberWS6

No, there is no oil pressure kill on these motors. Seen too many people spin bearings or lose motors after a oil pump dying

blacktransam

iTrader: (13)

i've heard yes and no but i know for a fact that 98's don't.

a98ws6

iTrader: (48)

Well the motor is not redone from a machine shop so I dont know how the oil plugs could have came out of the front or rear of the block??? It is also not a 98 motor. It is a stock short block out of a 99SS, with ported pump, dbl. roller chain, GTP stg 2 heads, Yella Terra's, 228/224 cam,LSX, etc. The motor was pulled and I took it home where it sat for at least 8 months. Can sitting make a oil pump go bad? I am going to try a used stock pump and see if that works, and take apart the used one to see if it is stuck.

a98ws6

iTrader: (48)

Tried another oil pump today. A stock one. Still no oil pressure and the front plug is definitely in there.

P Mack

iTrader: (6)

Make sure nothing's blocking the oil pickup.

a98ws6

iTrader: (48)

Its next on the list. If the pick up tube is ok, what else could I possibly be missing???

68birdls1

iTrader: (46)

like someone said earlier, your sending unit could be bad! i dont know if there is a way to check to see if it works or not, but i would think that is what it is!