No oil pressure in Rebuild
#1
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Join Date: May 2006
Location: Centereach, NY
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No oil pressure in Rebuild
rebuilt 5.7 long block with new oil pump i just finished getting the motor in the boat trying to prime the motor with the drill and i can't get any pressure on gauge to build....strange thing is if i take the oil filter off( remote oil filter atop riser) and turn the pump oil will flow slowly...its very weak flow tho...i can stop it with my finger easily and i really have to be high speed on the drill...what are some reason for this...could their be a loss of pressure somewhere or is this just a bad pump?
#2
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[QUOTE=formula18;3504365]rebuilt 5.7 long block with new oil pump i just finished getting the motor in the boat trying to prime the motor with the drill and i can't get any pressure on gauge to build....strange thing is if i take the oil filter off( remote oil filter atop riser) and turn the pump oil will flow slowly...its very weak flow tho...i can stop it with my finger easily and i really have to be high speed on the drill...what are some reason for this...could their be a loss of pressure somewhere or is this just a bad pump? where should i start
#5
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If you installed a new oil pump you have to prime the oil pump itself with the oil your going to use before installing it.
Also your drill has to have enough rpms to spin the oil pump shaft also you need the proper oil pump priming tool that is the GM one, it will have a collar adaptor - just google GM oil priming tool to see. Good luck.
Also your drill has to have enough rpms to spin the oil pump shaft also you need the proper oil pump priming tool that is the GM one, it will have a collar adaptor - just google GM oil priming tool to see. Good luck.
#6
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I had the same problem with my 502 not sure if you motor has them but the machine shop that did my work forgot to put the plugs back in the lifter gally after cleaning the block all the oil was pumping out into the lifter gally . hope this helps
#10
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