I don't know - I'd say anything sitting THAT long untouched is a special case that's probably not wise to do the soak and force method.
A lot depends on how it was stored of course - stored indoors in a dry climate is obviously a different case than outside in a wet climate.
But assuming somewhere in the middle - a lot can happen over thirty years. The cylinders can be so badly pitted they need to be bored anyways which means there's no sense continuing on this path.
Valves can be stuck solid so even if you get the pistons free you'll be bending pushrods, etc etc.
I think I'd start by pulling the breather tube cover and looking in to the bottom of the cylinders - then pull the head and see what you've got in there.
Head gaskets aint cheap for that engine - but I don't think you're going to be able to avoid ripping the engine apart to at least inspect everything.
It's inevitable - pull the head.
If you find things don't really look that bad -you can still keep applying penetrating oil to the pistons. And keep rocking the tractor by the back wheels.
That's how we freed ours up - put it in gear and just keep rocking back and forth. It seemed totally hopeless, but then we saw the flywheel jump a little. Then a little more... then finally free.
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 - Farmall 460: That's My Girl - by LeAnn R. Ralph. How many sounds can you think of that are as familiar to you as your own breathing? What about the hum of your refrigerator? Or the thump of your clothes dryer? Maybe the engine of your car? You hear those sounds every day, and you don't think much about them, do you. I can think of a few common, ordinary sounds in my daily life, too.
... [Read Article]
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.