I found a 1947 farmall M in a old shed has not been moved for over 20 years lots of water in oil in trans and rearend.The question that I have is can I put regular hyd. oil in in place of the 80-90. I have a 30 gal barrel of hyd. oil and no 80-90. I know that some seals might start leaking but will the thinner oil hurt the gears and bearings in the tractor. Thanks in advance.
- Thread starter S2710
- Start date
Anonymous-0
Well-known Member
its ok to use it as a flushing oil, and run it around a bit but you cant keep it in there. you need the actual gear oil for proper gear lubrication, especially under load.
Nebraska Kirk
Well-known Member
No, hydraulic oil is way too thin, you have to use gear oil.
Janicholson
Well-known Member
Gear surface finish today is so different than the early machinery that putting Transmission rated oil in a unit designed for thicker gear oil is not a good idea. The trans will coast far more than desired, the seals will probably leak, and it will make more noise. They do hold quite a bit of oil, but I would trade my desirable Hydraulic/trans oil for some 80-90!! JimN
Anonymous-0
Well-known Member
Ask a caseih dealer, if they look up, the new recomendations will tell you to use hy-tran. I asked and that is the answer I got.
Hugh MacKay
Well-known Member
S2710: Go with gear oil, and heed what Jim has told you. The case hardening on gears improved greatly in the mid to late 1950s. Don't listen to CaseIH, they'd have you using hytran on a steel tired wheel barrow.
randy hall
Member
the only reason not to use the light oil would be more leaks. the tractors with t/a's use 10 weight oil and the oiling system on a 450 is the same as an m. you will be fine. i have hytran in the pulling m's and they roll easier than with the heavy gear oil.
Hugh MacKay
Well-known Member
Randy: The gears in a 450 are not the same as an M and the difference is case hardening. There was a major change in case hardening around 1953-54, all Farmall gears after that date are much harder than older gears, even though they may interchange with the older gears.
Similar threads
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.
Copyright © 1997-2024 Yesterday's Tractor Co.
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.
Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy