No oil pressure on new NA build
06-18-2009, 06:24 PM
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No oil pressure on new NA build
Hey experts, I'm hoping you can help! I got my '03 z a couple months ago and had to rebuild the motor 2 weeks later (long story). It is very fresh with a new block, pistons, etc including a new oil pump. all stock stuff from Nissan Motorsports. I meant to fill the new pump wiith oil before i buttoned it up but i forgot. I just finished spinning it over without the plugs to build pressure and I cannot get any oil to move. I'm sure I put the o-rings in, but since i've never built this motor before who knows if I missed something. Any ideas for common mistakes, or do you think the new dry pump may be struggling to prime? All ideas welcome.
Not much diagnosis so far. I didn't see any oil going into the head while looking thru the filler tube. I pulled the oil filter and nada, nothing, zilch, dry as a bone.
thanks,
bill
Not much diagnosis so far. I didn't see any oil going into the head while looking thru the filler tube. I pulled the oil filter and nada, nothing, zilch, dry as a bone.
thanks,
bill
Last edited by billstein87; 06-18-2009 at 06:54 PM.
06-21-2009, 04:46 AM
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Hey Bill,
Sorry to hear that. I have never heard opf that happening, but before you start tearing into the front or bottom end, i would see if I could force some oil backwards through either the oil filter or oil pressure sensor holes.
good Luck!
Sorry to hear that. I have never heard opf that happening, but before you start tearing into the front or bottom end, i would see if I could force some oil backwards through either the oil filter or oil pressure sensor holes.
good Luck!
07-01-2009, 06:16 PM
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Dude, Are you joking? if I had started it then I would have done serious damage because it never primed on its own - period. Care to tell me what i did to seriously damage my motor by pouring oil backwards into the oil filter hole?
07-01-2009, 07:41 PM
#6
Hey experts, I'm hoping you can help! I got my '03 z a couple months ago and had to rebuild the motor 2 weeks later (long story). It is very fresh with a new block, pistons, etc including a new oil pump. all stock stuff from Nissan Motorsports. I meant to fill the new pump wiith oil before i buttoned it up but i forgot. I just finished spinning it over without the plugs to build pressure and I cannot get any oil to move. I'm sure I put the o-rings in, but since i've never built this motor before who knows if I missed something. Any ideas for common mistakes, or do you think the new dry pump may be struggling to prime? All ideas welcome.
Not much diagnosis so far. I didn't see any oil going into the head while looking thru the filler tube. I pulled the oil filter and nada, nothing, zilch, dry as a bone.
thanks,
bill
Not much diagnosis so far. I didn't see any oil going into the head while looking thru the filler tube. I pulled the oil filter and nada, nothing, zilch, dry as a bone.
thanks,
bill
Is this a monologue?
07-02-2009, 07:45 AM
#7
Forcing oil through the system, as you did, of course caused no harm. But prior to this, a lot of cranking most certainly could have. I have a perfect of example of this on my shelf...another shop went through an entire battery, AND a jump box trying to get oil pressure from cranking. The entire engine was destroyed and full of metal.
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