Bulldozer said: (quoted from post at 13:16:52 01/30/13) The .09" wall sleeves from TISC were prefinished.
The machinist advised that if the sleeves did not require honing to size after installation there is something wrong. The compression stress from the interference fit causes the ID of the sleeve to decrease. If there is insufficient interference fit between the block and the sleeve the sleeves will run hot because of reduction in the heat transfer. The .09" wall sleeves will result in higher contact pressure and therefore less thermal resistance than the .04" wall sleeve.
The new TISCO sleeves were all honed to size with finish for cast iron rings, chrome rings require a different finish, apparently.
Machinist advised the TISCO pistons where all the same size with no variation in diameter.
Next time around would get sleeves from Advanced Sleeve in Mentor, Ohio.
Advanced sleeve advised normal interference fit on sleeves is .002" using sleeve lubricate to install.
Like .09" sleeves, since can go oversize pistons in several steps on future overhauls.
The whole purpose of the sleeved engine design is to not need oversize anything. When you need an engine rebuild you replace the sleeves and pistons with new ones of the same size - $150 for a complete four cylinder kit containg all new rings, pistons, and sleeves. You can do the job it in your back yard or the middle of a corn field and you won't need a machinist to do it. It was common engine design practice in the 40's and 50's with many different OEMS not just Ford. It has fallen out of vogue in recent times probably because modern OEM's don't expect an engine to remain in service anywhere near as long.
The sleeve to block fit specified in the Ford shop manual is .001 interference. If you are using a pre-finished sleeve and piston kit specifically manufactured and packaged for a Ford 120 CID L-head engine that interference is already built into the manufacturing tolerances of the matched parts before they went into the boxes. Most engine shops don't work that way - they custom build and finish everything to size in their shop using generic unmatched parts from multiple sources. If they exceed that .001 interference on the pre-finished and matched Ford sleeve kit you provided they will screw up the built in manufacturing tolerances and likely have to re-size after installation to fix their mistake.
There are as many opinions on proper cylinder finish as there are automotive machinsts in the world. If you bought the pistons and sleeves as a matched kit I'd stick with the cylinder finish that came out of the box.
TOH
This post was edited by TheOldHokie at 11:00:02 01/30/13 4 times.
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 - History of the Nuffield Tractor - by Anthony West. The Nuffield tractor story started in early 1945. The British government still reeling from the effects of the war on the economy, approached the Nuffield organization to see if they would design and build an "ALL NEW" British built wheeled tractor, suitable for both British and world farming.
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[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.