Trouble getting oil pressure on new motor
06-03-2009, 01:59 PM
#16
Herr Unmöglich
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That is my next attack method for this evening.
Since I am not getting any oil at all, and I have tried and tried to pump it, this is the only thing different from my old motors.
Thanks Bruce.... FWIW your tools have been getting heavy use lately on my car and others. Thanks for the quality stuff!
Since I am not getting any oil at all, and I have tried and tried to pump it, this is the only thing different from my old motors.
Thanks Bruce.... FWIW your tools have been getting heavy use lately on my car and others. Thanks for the quality stuff!
05-18-2010, 08:57 AM
#18
Three Wheelin'
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Ya know, I saw (on one of the cheezy hotrod shows over the weekend) a guy load up his oil pump with vaseline during assembly. I've never heard of doing that but maybe it helps guarantee the pump will suck up oil and make quick pressure. Anybody ever try that? Bruce
05-18-2010, 10:02 AM
#19
Burning Brakes
just to be clear here you have the filter fitted but its dry ? is the top hole you are using to fill ,before or after the 'dry' filter?
Don't some filters have a valve in them ? maybe the filter should be pre -primed and fitted before this test ?
Don't some filters have a valve in them ? maybe the filter should be pre -primed and fitted before this test ?
05-18-2010, 10:02 AM
#20
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Not clear on the details of the remote oil filter setup being used here, but there are many of these that do NOT like the filter pre-filled before installation. Kind of counter-intuitive, but it's something to do with the oil pump getting the air out of itself. Some setups also require use of a different filter element.
05-18-2010, 12:47 PM
#21
hey, not that there aren't already a hundred threads on this subject. I had a hell of a time getting oil pressure on a new engine on Sunday using their advice so I might have a new(ish) trick. use an old shop vac to get pressure on the side oil filter hole (not the center one!) while cranking the engine. FWIW, here's what I had to do to get pressure:
1. remove oil filler cap, spark plugs, and make sure fuel is not getting to engine (pull the fuse, relay, whatever)
2. make sure you have 6 quarts of oil in the crank case (double check because, yes, you're an idiot just like the rest of us...)
3. jam a 2' ~3/4" clear hose into the side oil filter hole (again, not the center one!) pour some oil into it.
4. hand crank the engine backwards a few times (that's CCW to you and me, Clark.) oil may or may not get sucked into the oil pump (it didn't for me)
5. get an old shop vac and apply a good vacuum to the clear hose.
6. keep vacuuming, cross your fingers, toes, etc. and crank the engine until oil pumps into the clear hose.
7. immediately install a new, empty oil filter and crank the engine until you get pressure on the gauge.
I did all this with the engine on the ground and hacked up wiring for the starter and oil gauge. I imagine it would take 2 people to do it with the engine in the car.
1. remove oil filler cap, spark plugs, and make sure fuel is not getting to engine (pull the fuse, relay, whatever)
2. make sure you have 6 quarts of oil in the crank case (double check because, yes, you're an idiot just like the rest of us...)
3. jam a 2' ~3/4" clear hose into the side oil filter hole (again, not the center one!) pour some oil into it.
4. hand crank the engine backwards a few times (that's CCW to you and me, Clark.) oil may or may not get sucked into the oil pump (it didn't for me)
5. get an old shop vac and apply a good vacuum to the clear hose.
6. keep vacuuming, cross your fingers, toes, etc. and crank the engine until oil pumps into the clear hose.
7. immediately install a new, empty oil filter and crank the engine until you get pressure on the gauge.
I did all this with the engine on the ground and hacked up wiring for the starter and oil gauge. I imagine it would take 2 people to do it with the engine in the car.
05-18-2010, 01:16 PM
#22
Burning Brakes
928motorsports has a break-in procedure pdf that mentions packing the oil pump with lubriplate. I wonder what the factory procedure was...
05-18-2010, 01:18 PM
#23
yeah i saw that show also. I think that was specific to the engine that they were restoring although might work
05-18-2010, 01:24 PM
#24
hey, not that there aren't already a hundred threads on this subject. I had a hell of a time getting oil pressure on a new engine on Sunday using their advice so I might have a new(ish) trick. use an old shop vac to get pressure on the side oil filter hole (not the center one!) while cranking the engine. FWIW, here's what I had to do to get pressure:
1. remove oil filler cap, spark plugs, and make sure fuel is not getting to engine (pull the fuse, relay, whatever)
2. make sure you have 6 quarts of oil in the crank case (double check because, yes, you're an idiot just like the rest of us...)
3. jam a 2' ~3/4" clear hose into the side oil filter hole (again, not the center one!) pour some oil into it.
4. hand crank the engine backwards a few times (that's CCW to you and me, Clark.) oil may or may not get sucked into the oil pump (it didn't for me)
5. get an old shop vac and apply a good vacuum to the clear hose.
6. keep vacuuming, cross your fingers, toes, etc. and crank the engine until oil pumps into the clear hose.
7. immediately install a new, empty oil filter and crank the engine until you get pressure on the gauge.
I did all this with the engine on the ground and hacked up wiring for the starter and oil gauge. I imagine it would take 2 people to do it with the engine in the car.
1. remove oil filler cap, spark plugs, and make sure fuel is not getting to engine (pull the fuse, relay, whatever)
2. make sure you have 6 quarts of oil in the crank case (double check because, yes, you're an idiot just like the rest of us...)
3. jam a 2' ~3/4" clear hose into the side oil filter hole (again, not the center one!) pour some oil into it.
4. hand crank the engine backwards a few times (that's CCW to you and me, Clark.) oil may or may not get sucked into the oil pump (it didn't for me)
5. get an old shop vac and apply a good vacuum to the clear hose.
6. keep vacuuming, cross your fingers, toes, etc. and crank the engine until oil pumps into the clear hose.
7. immediately install a new, empty oil filter and crank the engine until you get pressure on the gauge.
I did all this with the engine on the ground and hacked up wiring for the starter and oil gauge. I imagine it would take 2 people to do it with the engine in the car.
05-18-2010, 04:44 PM
#27
Race Car
I am going out on a limb here, but assemble everything and start the motor. I have installed several OPRV(both styles) w/out the tool - its not hard with the motor on a stand. However, more importantly, I have not seen a discernable reading on the pressure gauge at starter speed.
I would give it a quick start to see what happens.
I would give it a quick start to see what happens.
05-18-2010, 05:34 PM
#28
Burning Brakes
When I did a head gasket job I tried to build oil pressure with the starter but never got the needle to move. When I started the engine I had pressure within 1-3 seconds, the starter probably doesn't spin the crank fast enough to build pressure.
05-19-2010, 10:14 PM
#30
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When I did mine, I did the oil into the filter housing and cranked the motor ccw, but was still having trouble building pressure. I took someones advice and applied ~10psi of compressed air to the dipstick tube while cranking and got oil pressure pretty quick.