oil pump or not?
03-05-2010, 01:22 PM
#1
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Join Date: Mar 2010
Location: loveland, colorado
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Year: 1989
Model: Cherokee
Engine: 4.0
oil pump or not?
I'm just getting around to fixing a hole I put in my oil pan a couple years ago. (darn good trail-fix to last that long...) Anyway, since the pan is off I'm planning on replacing the rear main since it's leaking a bit. (I know, shocker.) I just read something in JP that the 4.0 suffers from oil pump failures above 140K miles. My question is, should I swap it to since I'm already in there? It has 153k on it and was running fine. Has anyone ever had one puke? I'm just curious.
03-05-2010, 01:42 PM
#2
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Join Date: Oct 2008
Location: Stafford,VA
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Year: 1998
Model: Cherokee
Engine: 4.0
yes, use a melling Standard Volume........To have it apart and not replace it is just crazy...
A oil pump is always pumping dirty oil so any gear pump getting dirty un filtered oil will wear........In ANY motor not just jeeps.......
I have a New RMS, 1 Piece Rubber pan gasket and Melling pump ready to go in.
A oil pump is always pumping dirty oil so any gear pump getting dirty un filtered oil will wear........In ANY motor not just jeeps.......
I have a New RMS, 1 Piece Rubber pan gasket and Melling pump ready to go in.
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