Mike some more on the front engine cover. On some M tractors that have the same bolt pattern to mount a IH type pump originaly built by pesco and thompson, I mentioned clearance issues on some using a IH type pump with a place on the drive end shaft for a hour meter drive gear. To spot the cover and check the clearance. After the ignition drive is removed, look in the hole. If you see a screen fastened by 2 bolts, check the clearance or saw the pump shaft off for the HMD. if not needed. Later front covers had the screen moved up to under the oil fill cap. Another caution, make sure the bottom mounting bolt engine side for a pump or ignition drive is not to long. If to long it will go through and contact the cam gear. Ones that survive that happening have metal scaring of the gear and metal cuttings in the engine. Cam gear 6760 DA was changed on the farmall tractors to 6760 DB at C264 engine # 155941 in 400 tractor. About the only difference from DA was DB machined for a tighter fit on the cam shaft. Wish I knew the exact time the change was made on a M from D cam to DA, but you want facts so I don't know. Think it was later than the bolt pattern change of front cover. IH came out with another camshaft to help with the cam hub getting loose on the cam. Cam with left hand threads and nut were added starting C281 engine # 9861 in a farmall 450. All the latest design cams and gears became the replacement parts for the whole familiy of engines. Most kits M&W sold for M SM tractors were set at 1000 PSI max. SM and SMTA with IH pump pressure relief around 1000 PSI. 400 and 450 ran higher relief pressures. M&W did sell one kit limited to less than 1000 PSI. My experience so far is finding more replacement cam gears in M tractors than original ones. Maybe this answered part of the questions.
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 - Tractor Profile: Allis-Chalmers Model G - by Staff. The first Allis-Chalmers Model G was produced in 1948 in Gasden, Alabama, and was designed for vegetable gardeners, small farms and landscape businesses. It is a small compact tractor that came with a complete line of implements especially tailored for its unique design. It featured a rear-mounted Continental N62 four-cylinder engine with a 2-3/8 x 3-1/2 inch bore and stroke. The rear-mounted engine provided traction for the rear wheels while at the same time gave the tractor operator a gre
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[More Ads]
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.
