8n no oil pressure

cdv

Member
just got done engine rebuilt new pistons,,,rings and sleeses,,crank cut 10 new bearings 10,,oil pump kit gears and bushing,,new oil pressure gauge fired it up no oil pressure,,oil is coming out line to gauge but not high pressure just slow blow air in all the oil line there ok ,,now it run good before but no oil pressure then that why I rebuilt the engine any ideals thanks cdv
 
[b:7e92af09ed][i:7e92af09ed]CDV;
Have you tried priming the oil pump???
Kind of hard to get to, but...pull this pressure relief plug and pump 80 to 90wt. gear oil into the hole. That will prime the pump.
If still no oil pressure....drain the oil out of the engine and check to make sure the pick-up tube is not loose, as LisaK suggested.
Here is the prime hole is.....(don't loose the spring and or the plunger!!!!


Gary[/i:7e92af09ed][/b:7e92af09ed]
 
If he's getting non pressurized oil out the op gauge line, sounds primed, but sounds like a galley plug out or something?
 
It does sound primed but wouldn't a loose pick up tube cause low pressure? Who did the work on the engine? I know when we did my rebuild we packed the oil pump gears on assembly and primed it before start up. If the reason for rebuilding was no oil pressure and u have no oil pressure after s rebuild I can see the problem being the oil galley plug missing. 1 is behind the flywheel the other behind the drive gear on the cam.
 
poured stp in front hole pack oil pump gears with bearing lude,,not loose I looked at the tube for cracks,, I have done many rebuilts
 
yep.. we always pack oil pumps too.

and ditto.. when i saw him say that it had no op and now has no op. i wonder if this is a new to him engine someone worked on, and left a plug out then passed the engine on?
 
Just a thought but did they install both oil galley plugs? Depending on year, one behind the cam gear and later models one in the rear behind the flywheel. Hope its something other than this!!
 

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