Ford 9N, 2N & 8N Discussion Board |
Re: Re: Replacing Connecting Rod Bearings
[ Expand ] [ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by NO - Cap on May 06, 2004 at 23:35:40 from (4.242.3.217):
In Reply to: Re: Replacing Connecting Rod Bearings posted by Rob on May 06, 2004 at 19:29:49:
Mix and match is a poor idea -- Same results as when we used to have to file the rod caps before the advent of bearing inserts. Reduces the crank to bearing contact area on the larger of the two insert halves to just the bottom of the bearing arc and only reduces the clearance at that point. You doubt? Just lay a strip of plasti-gage longways in the larger bearing shell, (instead of the usual crosswise) tighten it up, remove it, and measure. You'll find that the plasti-gage is squashed down to proper clearance only at the bottom. Actually, you won't even have to measure to determine, it will be obvious just looking at it. Two circles of differing diameters can only touch at one point. While it will briefly quieten a previously rattling rod it will last no time at all and usually will end up damaging the crank because the bearing that has the reduced contact area is the older half and the very thin layer of bearing material on that shell is already worn, so that very narrow contact area will rapidly wear through to the much harder shell material and end up scoring the crank. Long story short, never use mismatched inserts. That said, be aware that inserts come in a variety of intermediate sizes and if you are sure of your crank pin measurements you can order sizes in between Standard and 10 under in order to get just the right fit. It's your decision, but you'll be happier in the long run if you do it right. (unless, of course, you just LOVE pulling these old gals apart) :-) --Cap--
Follow Ups:
Home
| Forums
Today's Featured Article -
Fire in the Field A hay fire is no laughing matter-well, maybe one was! And a good life-lesson, too. Following World War II many farm boys returned home both older and wiser. One such man was my employer the summer I was sixteen. He was a farmer by birth and a farmer by choice, and like many returning soldiers, he was our silent hero: without medals or decorations, but with a certain ability to survive. It was on his farm that I learned to use the combination hand clutch and brake on a John D
... [Read Article]
Latest Ad:
Super WD9.
[More Ads]
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 HeadquartersWebsite Accessibility Policy |
|