Tractor Talk Discussion Board |
Re: re-torquing head question
[ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by RAB on January 11, 2002 at 13:28:30 from (195.93.50.167):
In Reply to: re-torquing head question posted by greg on January 10, 2002 at 16:18:45:
This depends on several things. Never ever retorque an aluminium head unless cold as distortion will occur - OK, so we are probably talking cast iron for most tractors, apart from small garden/horticultural types and definitely cast in this case. Type of gasket - some new engines use throw-away, use-once bolts. These are mainly on automobile engines, but this type have a special gasket material and bolts and retightening is just not required or safe (mechanically) to do. Take heed of the workshop manual - if there is an instruction, follow it. The more important factor is probably the tighening sequence for the bolts. Generally, or hopefully, the head surface should be flat when you put it on, so retighten it when it is flat, ie cold. This avoids tightening when the casting is trying to change shape (On heating). Practically, with very old tractors it probably doesn't matter too much whether hot or cold with cast heads but don't overtighten to try to stop leaks - get the surfaces skimmed flat if possible, if they need it. Hope this helps. I know you stated your make and model, but I wouldn't want anyone to think there is only the one best way to do the job for any engine.
Follow Ups:
Home
| Forums
Today's Featured Article -
Ford Part Number Trivia - by Forum Participants. "Replaced by" means the part was superseded. All of my part books date back to 1964 and New Holland have changed some part numbers. They usually put the old Ford part number on the package. I was suppressed when I looked up the part number of the auxiliary drive shaft because for some reason the part number went through a radical change and it lost its "Basic Part Number". Ford part numbers follow the following rules. Most part numbers are in three parts. The middle part is called the
... [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]
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 |
|