Massey Harris 44 oil pump

t martin

Member
Are the oil pumps the same between an early 44 and the later ones? I have a 1948 with the bolt in screen in the pan. I would prefer to go away from this with the later pan and have the internal pick up screen like my 51 model has. Can I just get swap the plumbing and pans or is the pump different as well?
 
Pumps would be the same, but early engines had smaller main bolts that go through the pump flange. If I remember the parts book showed 9/16 on early, and 5/8 on later engines.
Not sure if the pumps were changed here also.
 

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