Posted by Owen Aaland on July 22, 2009 at 06:03:56 from (198.70.47.142):
In Reply to: 544 crankshaft posted by BradT on July 21, 2009 at 12:35:58:
J B farms said: (quoted from post at 05:31:15 07/22/09) There doesn't appear to be any other damage inside the block. This engine was rebuilt 7 years ago and has ran just fine up until the crank broke. All the bearings are fine in it and there was no metal in the oil. I am still trying to figure out why the crank broke I think it was just a freak deal. The crank broke in the metal between the rod journal and a main bearing journal just on one side. Any body seen this before?
That is usually where they break.
Did the crank have undersize bearings in it? If it did it is quite possible that it had a damaged journal that affected the hardening in the shaft. There are also some crankshafts that can not be reground at all and others that must be rehardened after regrinding. They will look fine after regrinding but will fail in use. I have seen quite a few that did this.
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 - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[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.