In about 2005, our 4240 needed an overhaul, and we had a kid that worked for us that was going into the John Deere Tech program in MAdison, WI.
The 4240 was his guinea pig. Anyway, the head had several cracks, and so we replaced it with a 4440 head and turbo system. I don't recall if the rods and pistons had been upgraded to 4440 specs... I could check.
Using the 4440 head lowered compression a little, rather than just bolting on the turbo t othe natural head.
We left on the rotary pump, and didn't touch it from factory specs. This resulted in a 130 hp tractor... that seems to get a fair amount more work out of the same amount of fuel.
The muffler hole had to be cut out a little bit, maybe a 1/4 inch to the left to clear the muffler.
The whole thing turned out rather nicely, and while it's still not a 4440, its a lot more tractor than the original.
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 - Magic Moments - by Tyler J. Woods. Magic moments don’t just happen. You have to help them along. This morning, I got up early. It is my day off from my regular workweek and I had a lot of things to do. It’s fall, and with winter coming on, there is a lot of work to do before weather closes in.
... [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.