Crazy Horse
Well-known Member
I am posting this for a friend who is stumped after doing an engine rebuild on a '46 John Deere D. He is
an experienced mechanic who in his life has rebuilt pretty much every engine type on the planet (including
many, many John Deere two cylinders), along with associated transmissions, differentials, steering
systems, and electrical components so he's not a rookie by any means.
To make a long question short, no matter what he does (and redoes over and over again through testing) he
cannot get more than 3 pounds of oil pressure after the rebuild. Everything has been rebuilt and tested,
including all the oil lines and connections, oil pump, filter canister, etc. The engine was a full
rebuild as mentioned, several oil pressure gauges were used which he knows work properly. He hates to
admit it but he is totally stumped and thought perhaps someone on this forum might be able to make a
suggestion that he might have overlooked. If you reply with an idea, I will pass it along to him and
reply back for him if that works for you. I await replies and thanks in advance ...
an experienced mechanic who in his life has rebuilt pretty much every engine type on the planet (including
many, many John Deere two cylinders), along with associated transmissions, differentials, steering
systems, and electrical components so he's not a rookie by any means.
To make a long question short, no matter what he does (and redoes over and over again through testing) he
cannot get more than 3 pounds of oil pressure after the rebuild. Everything has been rebuilt and tested,
including all the oil lines and connections, oil pump, filter canister, etc. The engine was a full
rebuild as mentioned, several oil pressure gauges were used which he knows work properly. He hates to
admit it but he is totally stumped and thought perhaps someone on this forum might be able to make a
suggestion that he might have overlooked. If you reply with an idea, I will pass it along to him and
reply back for him if that works for you. I await replies and thanks in advance ...