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oil pressure

2301 Views 10 Replies 7 Participants Last post by  Bill Kapaun
I have a craftsman model# 917-986450,with a kohlar 7000 series kt745-3012
I installed a oil pressure gage.I get 25 psi.does seem low
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Although I'd probably prefer to see a higher reading, 25 PSI should be totally adequate.
Using a synthetic might also be lowering your PSI a bit because it's thinner at pretty much any temperature the oil will see.

Oil pressure alone, assuming you have "some", is probably less important than oil film strength.
Even 100 PSI doesn't offer much support to a bearing surface that may be less than a small fraction of a sq-in.
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