Might help to make sure we have our terminology straight.
There are bearings and there are bearing caps. The bearing caps mate up to the connecting rods (in the case of rod bearing) or to the crankcase (in the case of main bearings) and serve the purpose of holding the two halves of each bearing in place around the crankshaft.
Turning and polishing a crank will require new bearings of the appropriate interior diameter. Their outside diameter will the the same, so that the same bearing caps will hold them in place. (Another way to look at it is that if a crank has been turned down, the bearings will be thicker, the outer diameter being the same, the inner being smaller.)
So . . . if you actually have the original bearing caps for your block, simply have the shop that turned the crank order new bearings to match the diameter they turned it down to, and you're set to go.
If you do not have the original bearing caps, then it's a whole other matter. Any replacement caps you find that will bolt up will have to be line bored along with the block. What that does is machine things out so that the circles formed by the cap and block are on center (in a straight line) and of the correct diameter for your bearings. It's a critical step, and is why the original caps are numbered for each cylinder, and that the number goes to the side with the cam -- it's to keep those circles round and hold your bearings in a straight line.
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 - Talk of the Town: How to Remove a Broken Bolt - by Staff. Another neat discussion from the Tractor Talk Discussion Forum. The discussion started out with the following post: "I have an aluminum steering gear housing with a bolt broken off in it. The bolt is about a 3/8" x 1 1/2" bolt. I've already drilled the center of the bolt out with about 7/64" drill bit the entire length of the bolt. Only one end of the bolt is visible. I tried to use an easy out but it wasn't budging and I didn't want t
... [Read Article]
Latest Ad:
2022 John Deere 5045E, 4wd, front end loader and 3rd function with grapple. 120 hrs, 55k new, must sell
[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.
