Actual psi is not all that critical. They should run 60 to 70 warmed up under load, BUT, what you watch a gauge for is a change. If an engine has been running that way for many hours it is more than likely general wear in several components. If, all of a sudden you get a change in oil pressure that is when you sit up and take notice. I have repaired many, many oil pumps on M's over the years and the normal problem with those pumps is wear on the shaft just above the gear where it is supported in the housing. That is the pressure point. Luckily though, the housing rarely wore much at all and a new shaft fixed the problem. Normal overhaul procedure was to replace spring and plunger and adjust end play. Had to be careful to get correct plunger though as parts books were messed up years ago and some plungers had a smaller outside dia on the pressure end and that is the wrong one for an M or H. End plates didn't wear much, that is the smaller engines that gave all the problems with that blowing gaskets, warped or worn end plates.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - History of the Nuffield Tractor - by Anthony West. The Nuffield tractor story started in early 1945. The British government still reeling from the effects of the war on the economy, approached the Nuffield organization to see if they would design and build an "ALL NEW" British built wheeled tractor, suitable for both British and world farming.
... [Read Article]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
