No Oil Pressure?

raptor · 04-11-2003, 10:10 PM

Got my engine all ready to go. The machine shop told me the oil pump was primed and just to take the coil wire off and turn it over until I see pressure. I did that and no pressure, I let the car run for a few seconds and no pressure. Now I have changed the guage from an electric (oem) to a mechanical. Mechanical is whats on it now. Should I dig out my old sending unit and try the factory one. It work before I pulled the engine. Theres not even any oil in the plastic line?
Thanks

fiveohpatrol · 04-11-2003, 10:53 PM

I wouldnt try running it anymore if i were you.

Pull the distributor out, get a drill and fashon up a 1/4" drive extension with a 1/4" socket on the end. Stick this down in the distributor hole and seat it on the oilpump driveshaft. Run the drill in reverse, and have someone watch your gage. If you can feel resistance, then your pump is turning, and you SHOULD have pressure.

Give this a shot and post the results.

By the way, if you have an old distributor laying around, you can take it apart and use the internal shaft instead of an extension/socket setup.

raptor · 04-11-2003, 11:25 PM

How fast should the drill turn its rated for 3200rpm full blast?
How long should I have to do this for?
Thanks

raptor · 04-11-2003, 11:41 PM

It's 12:40am here. I don't have anyone to watch the guage. I'm not going to bed until its running. LOL
Thanks

04-12-2003, 12:13 AM

If you saw no oil pressure when you had it running you shoulda shut it off ASAP! You could have damaged internals as of right now.

I would try a different oil sending unit then try it again,but if no pressure reading,for god's sake dont run it til you got it trouble-shooted.

raptor · 04-12-2003, 12:34 AM

I only ran it for about 10-15sec.

raptor · 04-12-2003, 02:28 AM

I put a drill on the pump no pressure on guage. Changed to old guage no pressure. ??

LX5liter · 04-12-2003, 10:26 AM

If you have no pressure with the mechanical guage, then you have problems, especially if you let it run for a few seconds and the pressure didn't show up. You might be pulling your motor back out to change your pump and check the bearings.

fiveohpatrol · 04-12-2003, 11:58 AM

You mentioned a machine shop, so is this a brand new motor that they built?

If so, then take it up there, tell them to pull the motor and fix what is wrong. You shouldnt have to pay them for a new motor, and then have to pull it apart to fix something they screwed up.

raptor · 04-12-2003, 12:16 PM

Yes this is a brand new engine. I bought the parts and had the machine shop assemble it. Does anyone know what the problem is?

raptor · 04-12-2003, 04:50 PM

fiveohpatrol · 04-12-2003, 07:41 PM

did you feel any resistance when you turned the pump with the drill?

If not, then your pump shaft is probably broken, or they may have forgotten to install it.

MEDIK418 · 04-13-2003, 02:10 AM

Who put the oil in it? You or the machine shop?
It shouldn't have taken more than 6-10 revolutions of the oil pump shaft to feel a lot of resistance and good pressure. It wouldn't be the first time someone lied to a customer about something they were supposed to do.
Either the pump shaft fell out of place and is in the oil pan or it broke. Can you see the end of the shaft? It should be visible down in the hole left when you pulled the distributor. If not, it's gone somewhere else to live.Whatever you do, don't start it again till you get pressure with the drill.

raptor · 04-13-2003, 01:44 PM

Ok I see the shaft it's there. When I turn it with the drill there is resistance but no pressure. At the top of the hole for the distrubutor the oil trickles out also when I remove the sending unit the oil trickles out not much but its there. The drill is to be in reverse right? I just dont want to pull the engine again if I can fix it while its in the car and besides the machine shop is 4hrs away.
Thanks

MEDIK418 · 04-13-2003, 06:23 PM

You're doing everything right, I just can't figure out why no pressure. Once, my Cleveland got down to no pressure and I found the oil pickup screen plugged off with a bunch of silicon dingleberries. Your's is too new for this so I am at a loss here. Something is plugged or the oil pump is not working as it should.

raptor · 04-17-2003, 07:56 PM

I found my problem

My oil pickup was resting on the bottom of the oil pan. I took the timing chain cover off and had a look inside. I was able to get my pry bar in there and pry it up. Pressure is back to normal. Thank god i didn't have to pull the motor

Thanks for all the replies.

04-11-2003, 10:10 PM	#1
raptor Registered Member Join Date: Sep 1999 Location: Dundalk, Ont, Canada Posts: 129	No Oil Pressure? Got my engine all ready to go. The machine shop told me the oil pump was primed and just to take the coil wire off and turn it over until I see pressure. I did that and no pressure, I let the car run for a few seconds and no pressure. Now I have changed the guage from an electric (oem) to a mechanical. Mechanical is whats on it now. Should I dig out my old sending unit and try the factory one. It work before I pulled the engine. Theres not even any oil in the plastic line? Thanks __________________ 88GT, 331Stroker,FMS 70mm TB,77mm Pro-M mass air,Ram Air,K&N,GT40/Exployer Intakes,Gasket Matched,FMS 24lb injectors,Crane hi-6 ignition system,B303 cam,Crane 1.6RR,FMS underdrive pullies,351W/heads,port/polish,FMS h/f oil pump,Hedman headers,2 1/2in H pipe Flow Masters,190lph Holley fuel pump,Center Force dual friction,FMS 3.55,Hurst short throw/ trigger T handle,Subframe connectors,Welded torque boxes.

04-11-2003, 10:53 PM	#2
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	I wouldnt try running it anymore if i were you. Pull the distributor out, get a drill and fashon up a 1/4" drive extension with a 1/4" socket on the end. Stick this down in the distributor hole and seat it on the oilpump driveshaft. Run the drill in reverse, and have someone watch your gage. If you can feel resistance, then your pump is turning, and you SHOULD have pressure. Give this a shot and post the results. By the way, if you have an old distributor laying around, you can take it apart and use the internal shaft instead of an extension/socket setup. __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

04-11-2003, 11:25 PM	#3
raptor Registered Member Join Date: Sep 1999 Location: Dundalk, Ont, Canada Posts: 129	How fast should the drill turn its rated for 3200rpm full blast? How long should I have to do this for? Thanks __________________ 88GT, 331Stroker,FMS 70mm TB,77mm Pro-M mass air,Ram Air,K&N,GT40/Exployer Intakes,Gasket Matched,FMS 24lb injectors,Crane hi-6 ignition system,B303 cam,Crane 1.6RR,FMS underdrive pullies,351W/heads,port/polish,FMS h/f oil pump,Hedman headers,2 1/2in H pipe Flow Masters,190lph Holley fuel pump,Center Force dual friction,FMS 3.55,Hurst short throw/ trigger T handle,Subframe connectors,Welded torque boxes.

04-11-2003, 11:41 PM	#4
raptor Registered Member Join Date: Sep 1999 Location: Dundalk, Ont, Canada Posts: 129	It's 12:40am here. I don't have anyone to watch the guage. I'm not going to bed until its running. LOL Thanks __________________ 88GT, 331Stroker,FMS 70mm TB,77mm Pro-M mass air,Ram Air,K&N,GT40/Exployer Intakes,Gasket Matched,FMS 24lb injectors,Crane hi-6 ignition system,B303 cam,Crane 1.6RR,FMS underdrive pullies,351W/heads,port/polish,FMS h/f oil pump,Hedman headers,2 1/2in H pipe Flow Masters,190lph Holley fuel pump,Center Force dual friction,FMS 3.55,Hurst short throw/ trigger T handle,Subframe connectors,Welded torque boxes.

04-12-2003, 12:13 AM	#5
Mustanguy Guest Posts: n/a	not good If you saw no oil pressure when you had it running you shoulda shut it off ASAP! You could have damaged internals as of right now. I would try a different oil sending unit then try it again,but if no pressure reading,for god's sake dont run it til you got it trouble-shooted.

04-12-2003, 12:34 AM	#6
raptor Registered Member Join Date: Sep 1999 Location: Dundalk, Ont, Canada Posts: 129	I only ran it for about 10-15sec. __________________ 88GT, 331Stroker,FMS 70mm TB,77mm Pro-M mass air,Ram Air,K&N,GT40/Exployer Intakes,Gasket Matched,FMS 24lb injectors,Crane hi-6 ignition system,B303 cam,Crane 1.6RR,FMS underdrive pullies,351W/heads,port/polish,FMS h/f oil pump,Hedman headers,2 1/2in H pipe Flow Masters,190lph Holley fuel pump,Center Force dual friction,FMS 3.55,Hurst short throw/ trigger T handle,Subframe connectors,Welded torque boxes.

04-12-2003, 02:28 AM	#7
raptor Registered Member Join Date: Sep 1999 Location: Dundalk, Ont, Canada Posts: 129	I put a drill on the pump no pressure on guage. Changed to old guage no pressure. ?? __________________ 88GT, 331Stroker,FMS 70mm TB,77mm Pro-M mass air,Ram Air,K&N,GT40/Exployer Intakes,Gasket Matched,FMS 24lb injectors,Crane hi-6 ignition system,B303 cam,Crane 1.6RR,FMS underdrive pullies,351W/heads,port/polish,FMS h/f oil pump,Hedman headers,2 1/2in H pipe Flow Masters,190lph Holley fuel pump,Center Force dual friction,FMS 3.55,Hurst short throw/ trigger T handle,Subframe connectors,Welded torque boxes.

04-12-2003, 10:26 AM	#8
LX5liter dude5l Join Date: May 2001 Location: Grande Prairie, Alberta, Canada Posts: 603	If you have no pressure with the mechanical guage, then you have problems, especially if you let it run for a few seconds and the pressure didn't show up. You might be pulling your motor back out to change your pump and check the bearings. __________________ Good luck! Brad R. 1992 L.X. 5.0 coupe MODS: A few little bolt ons New Best time ...11.60 @ 128 mph @ 2000+ ft altitude. Rice Haters Club member #39 Users rides #2542

04-12-2003, 11:58 AM	#9
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	You mentioned a machine shop, so is this a brand new motor that they built? If so, then take it up there, tell them to pull the motor and fix what is wrong. You shouldnt have to pay them for a new motor, and then have to pull it apart to fix something they screwed up. __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

04-12-2003, 12:16 PM	#10
raptor Registered Member Join Date: Sep 1999 Location: Dundalk, Ont, Canada Posts: 129	Yes this is a brand new engine. I bought the parts and had the machine shop assemble it. Does anyone know what the problem is? __________________ 88GT, 331Stroker,FMS 70mm TB,77mm Pro-M mass air,Ram Air,K&N,GT40/Exployer Intakes,Gasket Matched,FMS 24lb injectors,Crane hi-6 ignition system,B303 cam,Crane 1.6RR,FMS underdrive pullies,351W/heads,port/polish,FMS h/f oil pump,Hedman headers,2 1/2in H pipe Flow Masters,190lph Holley fuel pump,Center Force dual friction,FMS 3.55,Hurst short throw/ trigger T handle,Subframe connectors,Welded torque boxes.

04-12-2003, 04:50 PM	#11
raptor Registered Member Join Date: Sep 1999 Location: Dundalk, Ont, Canada Posts: 129	HELP __________________ 88GT, 331Stroker,FMS 70mm TB,77mm Pro-M mass air,Ram Air,K&N,GT40/Exployer Intakes,Gasket Matched,FMS 24lb injectors,Crane hi-6 ignition system,B303 cam,Crane 1.6RR,FMS underdrive pullies,351W/heads,port/polish,FMS h/f oil pump,Hedman headers,2 1/2in H pipe Flow Masters,190lph Holley fuel pump,Center Force dual friction,FMS 3.55,Hurst short throw/ trigger T handle,Subframe connectors,Welded torque boxes.

04-12-2003, 07:41 PM	#12
fiveohpatrol I'd rather be basketweaving Join Date: Feb 2000 Location: Indianapolis Posts: 2,551	did you feel any resistance when you turned the pump with the drill? If not, then your pump shaft is probably broken, or they may have forgotten to install it. __________________ NMRA O/C 9516 NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft

04-13-2003, 02:10 AM	#13
MEDIK418 Registered Member Join Date: Mar 1999 Location: Amarillo, Texas, USA Posts: 780	Who put the oil in it? You or the machine shop? It shouldn't have taken more than 6-10 revolutions of the oil pump shaft to feel a lot of resistance and good pressure. It wouldn't be the first time someone lied to a customer about something they were supposed to do. Either the pump shaft fell out of place and is in the oil pan or it broke. Can you see the end of the shaft? It should be visible down in the hole left when you pulled the distributor. If not, it's gone somewhere else to live.Whatever you do, don't start it again till you get pressure with the drill. __________________ 1986 four-eyed LX coupe, 358 Cleveland, Tremec TKO600/centerforce clutch, dish cut Probe forged pistons, comp cams hyd.roller cam, .579/.588@224/230, Edel.performer, 670 holley street avenger, CPR custom built long tubes, ported and polished 4bbl heads, manley valves, beehive springs, MSD peo-billet dist/MSD6AL, fluidamper, 5 lug conv. with 17x8 bullits there's more but it's still not finished yet. Oh, and the oldest boy is turning his 89 GT into a FFR cobra this next summer. Last edited by MEDIK418; 04-13-2003 at 02:17 AM..

04-13-2003, 01:44 PM	#14
raptor Registered Member Join Date: Sep 1999 Location: Dundalk, Ont, Canada Posts: 129	Ok I see the shaft it's there. When I turn it with the drill there is resistance but no pressure. At the top of the hole for the distrubutor the oil trickles out also when I remove the sending unit the oil trickles out not much but its there. The drill is to be in reverse right? I just dont want to pull the engine again if I can fix it while its in the car and besides the machine shop is 4hrs away. Thanks __________________ 88GT, 331Stroker,FMS 70mm TB,77mm Pro-M mass air,Ram Air,K&N,GT40/Exployer Intakes,Gasket Matched,FMS 24lb injectors,Crane hi-6 ignition system,B303 cam,Crane 1.6RR,FMS underdrive pullies,351W/heads,port/polish,FMS h/f oil pump,Hedman headers,2 1/2in H pipe Flow Masters,190lph Holley fuel pump,Center Force dual friction,FMS 3.55,Hurst short throw/ trigger T handle,Subframe connectors,Welded torque boxes.

04-13-2003, 06:23 PM	#15
MEDIK418 Registered Member Join Date: Mar 1999 Location: Amarillo, Texas, USA Posts: 780	You're doing everything right, I just can't figure out why no pressure. Once, my Cleveland got down to no pressure and I found the oil pickup screen plugged off with a bunch of silicon dingleberries. Your's is too new for this so I am at a loss here. Something is plugged or the oil pump is not working as it should. __________________ 1986 four-eyed LX coupe, 358 Cleveland, Tremec TKO600/centerforce clutch, dish cut Probe forged pistons, comp cams hyd.roller cam, .579/.588@224/230, Edel.performer, 670 holley street avenger, CPR custom built long tubes, ported and polished 4bbl heads, manley valves, beehive springs, MSD peo-billet dist/MSD6AL, fluidamper, 5 lug conv. with 17x8 bullits there's more but it's still not finished yet. Oh, and the oldest boy is turning his 89 GT into a FFR cobra this next summer.

04-17-2003, 07:56 PM	#16
raptor Registered Member Join Date: Sep 1999 Location: Dundalk, Ont, Canada Posts: 129	I found my problem My oil pickup was resting on the bottom of the oil pan. I took the timing chain cover off and had a look inside. I was able to get my pry bar in there and pry it up. Pressure is back to normal. Thank god i didn't have to pull the motor Thanks for all the replies. __________________ 88GT, 331Stroker,FMS 70mm TB,77mm Pro-M mass air,Ram Air,K&N,GT40/Exployer Intakes,Gasket Matched,FMS 24lb injectors,Crane hi-6 ignition system,B303 cam,Crane 1.6RR,FMS underdrive pullies,351W/heads,port/polish,FMS h/f oil pump,Hedman headers,2 1/2in H pipe Flow Masters,190lph Holley fuel pump,Center Force dual friction,FMS 3.55,Hurst short throw/ trigger T handle,Subframe connectors,Welded torque boxes.

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