If he is using a caliper, he could be measuring too much. Allow another .005 for that, and another one or two thousandths for the caliper slipping when it's pulled away to read it, and another .001 for the limit of the accuracy of the caliper, and it COULD turn out that he's actually measuring a perfectly good pin that's been turned to .020 under.
I've taken measurements like that early on in a project just for the purpose of sizing up what might need to be done, but the final measurements that lead to a decision are made with the crank out. As far as the crank pins, I could be comfortable with measurements taken on some cranks with the motor on a stand and upside down, so that everything is in reach and lighted well and room to move the mic, but if he thinks he's got issues with wear, then the mains need checking, too, and the only way to do that right is to pull the motor and get the crank out.
I'm a little vague (memory--the second thing to go) but I seem to recall that any crank I ever had turned, the shop stamped right into the crank somewhere either the new measurements or how much they had turned it down.
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 - Gatherin of the Orange - by Rick Nikolich. In July of 1998 I was talking to fellow Allis Chalmers collector Mike Schilling about the annual "Gathering of The Orange" AC show coming up in August of 1999. He got this wild idea that we should get a convoy of AC tractors and drive them from Charlotte, Michigan 105 miles to LaGrange, Indiana.
... [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.