farmall M

[Doug Shaw]

M WITH VERY LOW OIL PRESSURE, ANY SUGGESTIONS?

 

[Dblair]

the pumps wear out , pull the pan and check out the pump.

 

[Doug Shaw]

Whats it take to rebuild them or can you buy one already done and where?

 

[Allan in NE]

Doug,

Just my opinion, but I think ya ought to check the clerances on the crank bearings.

Far more likely suspect.

Allan

 

[Tim Gatzemeyer]

A mechanic friend of mine said the most common problem of low oil pressure in a M engine was wornen cam shaft bearings.

 

[Janicholson]

First check the cover and clearance of the oil pump. The covers get warped and loose. The end play should be .001" to .0005" between the gear and cover. Thin gasket material is used to set the clearance. Flatten the cover using 250 grit paper , then 400 grit, on a plate glass surface. If this is not the issue it could be bearings etc. but the pump is more common. also check the relief valve and spring for debris, or broken spring. Jim