I have used a rigid Sunnen Hone to recondition many blocks where I could get pistons in .010 over the current bore. Many of them were single cylinder Kohler engines from Cub Cadets but I have also taken .020" out of a Ford 391 and .030" from a Chevy 250.
Use coarse stones dry until you are about .002 from the final desired size. Then use a medium stone with oil until you are about .0005 - .001 from the final desired size. Then finish off with the proper fine stones with oil to get the proper piston fit and finish on the cylinder walls.
The most I have taken out is .250" in one cylinder in a Continental engine in a Massey Harris 101 Senior. The cylinder had a crack so I honed it out and pressed in a repair sleeve and then took that sleeve back to standard bore.
My 2444 has .010 over pistons in it since I wanted to leave the cylinders as small as possible to allow for additional overhauls in the future. There was one cylinder that did not clean up completely, there was a spot about the size of a nickle that still showed a bit of wear. I chose to leave it rather than going .020" over. If I had sent the block out to a machine shop I'm sure they would have bored it to .030" and not been concerned about future overhauls.
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 - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[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.
