Darryl 2Ms
Member
Hey guys, What is the normal operating oil pressure of an 861 diesel? 172 cubic inch... After an oil change it's at 60 psi cold. While mowing or baling it operates at 40-45 when
hot. Now with 50 hours on that oil change it drops to about 30 psi when hot. Heading for 25 psi. I used 10w 40 rated for diesel. I know oil thins out when it gets used. Whats the
lowest psi that is safe. I'm running around 1800 rpm. I'm thinking the PO rebuilt the motor , but used the old oil pump. There is no blowby or bearing knock. Good compression ,
she kicks right off... Ok gents... what do you all think? Appreciate all comments. Thanks... Darryl
hot. Now with 50 hours on that oil change it drops to about 30 psi when hot. Heading for 25 psi. I used 10w 40 rated for diesel. I know oil thins out when it gets used. Whats the
lowest psi that is safe. I'm running around 1800 rpm. I'm thinking the PO rebuilt the motor , but used the old oil pump. There is no blowby or bearing knock. Good compression ,
she kicks right off... Ok gents... what do you all think? Appreciate all comments. Thanks... Darryl