new oil pump 97 4.0
#1
02-29-2012, 07:23 PM
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#2
02-29-2012, 07:27 PM
Take it back off, flip it over, remove the cover (5 i think pan head bolts 6mm allen(?) take the pump gear out and reassemble it, this time pack it with petroleum jelly, or an assembly lube (?) but I think p jelly is preferred. put it all back together. try again.the gears need the seal from the p jelly to prime itself, and start pumping oil. Stinks to do it again.... but.
#3
02-29-2012, 08:41 PM
Take it back off, flip it over, remove the cover (5 i think pan head bolts 6mm allen(?) take the pump gear out and reassemble it, this time pack it with petroleum jelly, or an assembly lube (?) but I think p jelly is preferred. put it all back together. try again.the gears need the seal from the p jelly to prime itself, and start pumping oil. Stinks to do it again.... but.
If you think it's due to no prime, your best bet is to apply a suction to the oil cooler line and draw oil through the pump and fill the cooler and oil filter.
That said, chances are the reason you needed to replace the oil pump was due not to the oil pump failing but the main and rod bearings failing.
I've replaced countless oil pump gearsets on DIIs and had very few problems with them.
#4
02-29-2012, 09:18 PM
#5
02-29-2012, 10:16 PM
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#6
03-01-2012, 09:33 AM
My '93 LWB had no oil pressure when first started after having sat for two years. I hooked up the evacuator and drew a vacuum on the cooler line, as soon as I saw oil, I hooked up the line and fire the truck up. Instant oil pressure!
#7
03-01-2012, 10:13 AM
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This is not necessary and most likely won't help. The gear-rotor (progressive cavity) pumps are self-priming. It was the old distributor driven pumps that HAD to be primed.
If you think it's due to no prime, your best bet is to apply a suction to the oil cooler line and draw oil through the pump and fill the cooler and oil filter.
That said, chances are the reason you needed to replace the oil pump was due not to the oil pump failing but the main and rod bearings failing.
I've replaced countless oil pump gearsets on DIIs and had very few problems with them.
If you think it's due to no prime, your best bet is to apply a suction to the oil cooler line and draw oil through the pump and fill the cooler and oil filter.
That said, chances are the reason you needed to replace the oil pump was due not to the oil pump failing but the main and rod bearings failing.
I've replaced countless oil pump gearsets on DIIs and had very few problems with them.
#8
03-01-2012, 10:16 AM
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#9
03-01-2012, 12:35 PM
#10
03-01-2012, 12:43 PM
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This is not necessary and most likely won't help. The gear-rotor (progressive cavity) pumps are self-priming. It was the old distributor driven pumps that HAD to be primed.
If you think it's due to no prime, your best bet is to apply a suction to the oil cooler line and draw oil through the pump and fill the cooler and oil filter.
That said, chances are the reason you needed to replace the oil pump was due not to the oil pump failing but the main and rod bearings failing.
I've replaced countless oil pump gearsets on DIIs and had very few problems with them.
If you think it's due to no prime, your best bet is to apply a suction to the oil cooler line and draw oil through the pump and fill the cooler and oil filter.
That said, chances are the reason you needed to replace the oil pump was due not to the oil pump failing but the main and rod bearings failing.
I've replaced countless oil pump gearsets on DIIs and had very few problems with them.
