oil pressure low
Moderator: scottm
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plymouth62
- Posts: 2
- Joined: Sun Jul 22, 2007 7:54 pm
oil pressure low
I have a 354 hemi...reuilt to some extend...orginal parts....started it up 50lbs dropped to 5/10lbs ...I would appreciate a check list of things to check which may have caused this. I put it in a '79 little red express, of coarse everything is brand new in truck EXCEPT the hemi. thanks Bill
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OldMoparGuy
- Posts: 4
- Joined: Fri Apr 11, 2008 7:45 pm
Re: oil pressure low
I had a "79 "Express" brand new,wish I had it now.. 
I saw years ago in a magazine an "Express" with a 392 Hemi in it.
As for your oiling problem,pull the oil pump,possibly a stuck pressure relief valve,disassemble and clean it,maybe replace the whole thing. Also look for a loose or cracked oil pick-up pipe,I had no pressure on a "69 six-pack Bee I bought,turned out the oil pick-up pipe was cracked at the threads where it screwed into the block. Next thing I can think of is a badly trashed crank bearing,causing a major loss of pressure... Hear any engine knocking? Check for a bad oil pressure sending unit,or guage,these are easy and cheap to replace.
I saw years ago in a magazine an "Express" with a 392 Hemi in it.As for your oiling problem,pull the oil pump,possibly a stuck pressure relief valve,disassemble and clean it,maybe replace the whole thing. Also look for a loose or cracked oil pick-up pipe,I had no pressure on a "69 six-pack Bee I bought,turned out the oil pick-up pipe was cracked at the threads where it screwed into the block. Next thing I can think of is a badly trashed crank bearing,causing a major loss of pressure...
Hear any engine knocking? Check for a bad oil pressure sending unit,or guage,these are easy and cheap to replace.