(800) 853-2651
SHOP NOW

4440 Engine

J

John 37A

Member
Was driving a 4440 the other day and after topping a hill unloaded, it got hot and put out a lot of steam or blowby from underneath (not sure what it was). I throttled back and started to pull off the road. It labored the engine and smoked black out the exhaust. I shoved in the clutch in and it died. It would not restart. The next morning it started again after sitting in the shop but it started very hard.

I got it in my shop and checked oil pressure on it tonight. 30 psi at cold idle. Went up to 45 psi at full throttle and after running for a couple minutes, idle pressure was about 25 psi. It still starts hard (like it's cold outside even though it's been in a heated shop) but sounds good when it's running.

Aside from a manual, where should I start on this thing?
 
Forgot to ad, when I pulled the oil fill cap, there was a decent amount of blowby inside and the oil has a funny smell. I don't know how to describe the smell.
 

I would not have ran the engine after it died the first time. May well make the damage worse.
Given the evidence. It's time for a 100% tear down to every last little part. Clean, examine and measure everything.
May want to consider a running combine engine or a factory long block instead of repairing this motor.
 
I would think you probably spun a bearing, I would not run it anymore until it is diagnosed and repaired.
 
Forgot to ad, when I pulled the oil fill cap, there was a decent amount of blowby inside and the oil has a funny smell. I don't know how to describe the smell.
 
(quoted from post at 21:52:10 11/29/15) Forgot to ad, when I pulled the oil fill cap, there was a decent amount of blowby inside and the oil has a funny smell. I don't know how to describe the smell.
Click to expand...
It has galled the pistons after overheating, where the softer pistons actually smear small pieces onto the liners. That's why it starts hard now. It will also take some tension out of the rings as well, and that doesn't help your compression. The rings won't seal now so you're going to have a lot of blowby too.

Those exhaust gases going past the rings makes the oil smell funny(burned smell).
 
OK, now you have to deal with the aftermath of overheating the SNOT out of it, but what caused the overheating (to the point it damaged the engine) in the first place)?

(Noth'in like telling us the WHOLE story!)
 
I know that Smell,,and it's not near as good as smelling fresh Apple pie... It does sound like a burnt piston, and some times when one piston is trying to guald it can spin that bearing,,and even with one bearing going bad it will still carry decent oil pressure. I would set it in the shop to where you can pull the engine if needed, pull it down and look it over,,maybe an in frame will do it. Do you have any idea how many hours is on it ?
 
(quoted from post at 11:25:38 11/30/15) I know that Smell,,and it's not near as good as smelling fresh Apple pie... It does sound like a burnt piston, and some times when one piston is trying to guald it can spin that bearing,,and even with one bearing going bad it will still carry decent oil pressure. I would set it in the shop to where you can pull the engine if needed, pull it down and look it over,,maybe an in frame will do it. Do you have any idea how many hours is on it ?
Click to expand...

No clue on the hours. It seemed to run and shift really well up to that point. It is a Clint special.

I don't know the rest of the story on the tractor. I thought maybe a head gasket?
 
Ooh my,,one of those bargain Southern tractors..I saw them setting down at Clint's shop,,a rough looking collection...
 
You must log in or register to reply here.

Similar threads

D
International 784 engine oil pressure
Replies
7
Views
223
BarnyardEngineering
BarnyardEngineering
G
John Deere 4020 - Steering Motor Pinion Seal
Replies
14
Views
647
Albert Hargreaves
A
A
John Deere 420 oil pressure
Replies
4
Views
360
Albertpinette
A
D
Case 1030 Hydraulic Pressure-Question for John Saeli or others
Replies
5
Views
404
DRussell
D
J
John Deere B oil pressure
Replies
3
Views
346
buickanddeere
B
Tractor Parts Tractor Manuals

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.

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 Headquarters
Website Accessibility Policy

Back
Top