(800) 853-2651
SHOP NOW

John Deere B camshaft locked up

A

Anonymous-0

Well-known Member
i am restoring my grandpa"s "39 jd B, the motor was locked up i got pistons loose and out along with the crankshaft they are at machine shop getting cleaned,inspected and repaired. Anyway i dont have the camshaft or governor off or out but it is not turning all the way around. I am turing the gear that the gear on the crank would turn to move the camshaft gear and it turns about halfway and stops. It is all functioning because the fan turns with it along with the magneto gear. It seems like it just needs lubricated and worked back and forth. I dont want to tear all that apart if i dont have to so if anybody has any ideas for me id really apprciate it. Thank you for reading and helping!
 
Do pushrods and lifters rust in their bores on these? If so a lifter may be rusted in place effectively limiting rotation Jim
 
Yes you have a lifter rusted in the bore. When you get the cam removed you should be able to drive them right out.
 
I'd tear into it as those governors collect moisture and didn't lube well and things get rusted up in there and then chew theirselves up.
If caught early they are alot cheaper to repair then after the gears are all chewed up.
 
i looked and the 4 cam followers arent moving when i move the cam. so i need to get them loose. i will put pressure on them with a rod down the push rod hole.
 
B oil oil pumps are prone to taking on water.The pump could be rusted.I would take the pump down and have a look.Ive found them with ice inside and the pump coupling broken.
 
You must log in or register to reply here.

Similar threads

That_guy
8N Destroyed camshaft timing gear, what did I do wrong?
Replies
12
Views
664
Robert (ID)
R
W
Jubilee locked up
Replies
7
Views
361
waffels84
W
8
John Deere A/AR Camshaft and Gear Replacement
Replies
5
Views
348
8e3k0
8
M
IH 350U cam shaft gear keyway
Replies
5
Views
288
Bob M
Bob M
R
John Deere H Timing
2
Replies
28
Views
1K
Mike(NEOhio)
M
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