Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Case Tractors Discussion Forum
:

VAC Starter Nut Removal

Welcome Guest, Log in or Register
Author 
bob

09-28-2003 06:49:02




Report to Moderator

I have 49 VAC with a wobbly crankshaft pulley. I believe that there is a bushing that it rides on which has finally died after 54 years. What my problem is, how do I remove the nut for the hand starter on the end of the crank? Is it pressed on or threaded? If threaded, is it backwards thread and how would I keep the engine from turning over while turning the crank, besides removing the starter for flywheel acess?

Thanks.....Bob

[Log in to Reply]   [No Email]
Uggie

09-28-2003 16:49:14




Report to Moderator
 Re: VAC Starter Nut Removal in reply to bob, 09-28-2003 06:49:02  
Bob,
F-I-T is correct with the collar. There is something very important that you need to know. If you heat the nut to remove there is a felt pad behind the pulley and there is a seal at the front of the crank. The heating could either cause damage or catch on fire. Also don't put a bearing puller on your belt pulley or you will likely be looking for a new one. Not real easy to find. It takes a lot of patience and tapping on the center close the cam. Then take like a pry bar off the front timing cover in several locations to pry evenly. Just a word of advise. Been there and done that. I would use a 3/4 impact if you had one. May have to take off front end to really get a good straight shot at the nut. Good luck!!!!

Jim

[Log in to Reply]  [No Email]
F-I-T

09-28-2003 07:05:27




Report to Moderator
 Re: VAC Starter Nut Removal in reply to bob, 09-28-2003 06:49:02  
Bob:

I've got my D-61 parts book for the VA tractors open in front of me, and I'm viewing the crankshaft diagram.

The pulley sets right on the crankshaft, and there is no bushing. The nut threads onto a male stub end of the crank. It is a right hand thread, or it would come loose when you cranked it. To loosen it, I would try blocking the wheels and then putting the tractor in gear (disable the ignition), and attempt to turn it off. It may take an impact wrench since it has been on there for a while, but maybe it will cooperate. The pulley is driven by the crankshaft by a woodruff key, and should slide off after the nut is removed. There is a felt and cork dust seal behind the pulley that you might have to replace.

I hope that the pulley is damaged, because the only other way for the pulley to wobble would be for the end of the crankshaft to be bent.

Frank-in-Tallahassee
70D // 855 // VAC
[email protected]

[Log in to Reply]  [No Email]
bob

09-28-2003 09:15:33




Report to Moderator
 Re: Re: VAC Starter Nut Removal in reply to F-I-T, 09-28-2003 07:05:27  
I tried putting the tractor in gear and blocking it, but I kept turning the engine/moving the tractor. My block wasn't big enough and I wanted to make sure the nut unscrewed and wasn't pressed on. Don't need to break anything else. My 3/4in. dr socket was too long to fit, so I have to get my 1/2dr socket from work tomorrow. Then use an impact gun. Using a wrench only turns the tractor over. There is a collar or washer behind the nut and in front of the pulley. I thought the collar was part of a bushing.

The wobble just started, so I cannot see the crank being bent.

Thanks...Bob

[Log in to Reply]  [No Email]
Slowpoke

09-29-2003 00:21:56




Report to Moderator
 Re: Re: Re: VAC Starter Nut Removal in reply to bob, 09-28-2003 09:15:33  
I had occasion to crank my VAC the other day, and saw that the crank nut was hex and about 1 1/4". You might be able to use a long box wrench if the radiator is not removed. Put it in 4th and block the wheels, or chain it to a tree.



[Log in to Reply]  [No Email]
F-I-T

09-28-2003 10:00:57




Report to Moderator
 Re: Re: Re: VAC Starter Nut Removal in reply to bob, 09-28-2003 09:15:33  
Bob:

That piece right behind the nut is indeed called a collar. I hope you get it loose. If it wasn't so close to the timing cover and such, you coulr try some heat on the nut.

Maybe the hub has come loose on one side of the pulley?

Good luck!

Frank



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


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. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 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