Cummins 870 oil pressure
12-19-2021, (Subject: Cummins 870 oil pressure ) 
Post: #20
RE: Cummins 870 oil pressure
seems alittle high, going off all the research ive done on the cm870s at least for idle pressure makes me wonder if something is restricted. my 870 with a fresh set of rod and mains and new style pump.. cold idle start about 30psi operating temp 23. cruising speed rpm 1500-1800 35-40 psi. just voicing my opinion and giving you some numbers to compare to. best of luck
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RE: Cummins 870 oil pressure - jjoshthomas074 - 12-19-2021



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