Yesterday's Tractor Co. Parts for Farm Tractors - Compare our Prices!
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 9N,2N,8N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   Traditional YT Forum ViewClassic View   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

'41 A Internals: One step forward, two steps back..


 
Post new topic    
View previous topic :: View next topic  
Author Message
Ken Christopherson
Regular


Joined: 01 Oct 2007
Posts: 477


Report to Moderator

PostPosted: Mon Mar 24, 2014 10:09 am    Post subject: '41 A Internals: One step forward, two steps back.. Reply to specific post Reply with quote

Hey all.

Was able to get some more work done on the A project. Got the flywheel off last night, the reduction cover, mains and crank out. Got one of the mains loose and the collar of the left (flywheel side) main bearing insert fell down into the crankcase. Pulled the other side out and saw that there was a spot in the bearing where it was starting to chip away. Guess I am doing mains, too.

The reduction gear was sloppy, so figured it was the outer bearing that went. Pulled the cover and found most of the bearing internals laying in the bottom. The gear itself has about 3/8" of movement in and out, and when turned, seems to want to spiral off of the shaft. I'm guessing that the splines on the gear are worn, due to driving with a bad bearing for (probably several) years. Looks like I'll probably be needing a reduction gear, as well as the outer bearing.

Third, the cam bearings are both shot. So I'll be needing those.

Fourth, the oil pump drive gear is missing two teeth. Be needing one of those too.

Seems like I make a leap forward, and take a few steps back with everything on this A. That's ok, though. At least I didn't give much for it. Just have to keep plugging away.




 
Back to top
View user's profile
Mike M
Tractor Guru


Joined: 31 Mar 1998
Posts: 19184


Report to Moderator

PostPosted: Mon Mar 24, 2014 10:22 am    Post subject: Re: '41 A Internals: One step forward, two steps back.. Reply to specific post Reply with quote

Yep there is usually no end to it ! The more you look the more you find !

That's why when I did them I just took them all the way down and started with an empty case. Sure takes a lot of time and a toll on you. But sure makes for one good tractor when done. Nothing better then having an extra or 2 of the same model to use for parts as you go either.
 
Back to top
View user's profile
Ken Christopherson
Regular


Joined: 01 Oct 2007
Posts: 477


Report to Moderator

PostPosted: Mon Mar 24, 2014 10:35 am    Post subject: Re: '41 A Internals: One step forward, two steps back.. Reply to specific post Reply with quote

I've got quite a bit of slop in the first reduction gear shaft as well, so I may be looking at doing the inner bearing (hopefully I don't have to replace the shaft).

Oh well, mine as well do it right.. Just going to take longer is all. Still trying to figure out how to get the bearing off of the shaft so I can pull the gear to look at it and the shaft.
 
Back to top
View user's profile
Mike M
Tractor Guru


Joined: 31 Mar 1998
Posts: 19184


Report to Moderator

PostPosted: Mon Mar 24, 2014 11:59 am    Post subject: Re: '41 A Internals: One step forward, two steps back.. Reply to specific post Reply with quote

Put a gear puller on it hooked into the holes near the center and pull away and give it a SMACK to get it's attention when tight. The bearing should come off and the gear too.
Those input shafts are loose feeling when the reduction gear cover is not there to support it. It has a flat type roller bearing with no inner race as it rides on the shaft. You can likely get the bearing out for a look once the gear and the retaining cover are off. Your that far take a peek at the lower counter shaft endplay and lock nut on the left hand side. Many many times these are too loose. Also many times those bearings are bad too.
 
Back to top
View user's profile
Paul from MI
Tractor Guru


Joined: 06 Jun 2001
Posts: 4960


Report to Moderator

PostPosted: Mon Mar 24, 2014 6:34 pm    Post subject: Re: '41 A Internals: One step forward, two steps back.. Reply to specific post Reply with quote

The outer first reduction bearing is one of the weak points of the old two cylinders. zit really doesn't get a lot of lubrication. As you have noted, it may have been replaced or needs to be replaced now. Even after replacing bearings you may have some noise in the first reduction gear. Once the gears wear a bit with a worn bearing, and are out of line, they may be noisy after being put back in alignment. My '37 B is like this, no visible wear, but noisy. So far I have chosen to live with it, it isn't that bad.
 
Back to top
View user's profile
Ken Christopherson
Regular


Joined: 01 Oct 2007
Posts: 477


Report to Moderator

PostPosted: Mon Mar 24, 2014 9:40 pm    Post subject: Re: '41 A Internals: One step forward, two steps back.. Reply to specific post Reply with quote

Gear noise does not bother me much, I am used to the whining of a Case transmission (which is most notable in road gear). A little whine is ok, I just want to make sure it is mechanically sound.
 
Back to top
View user's profile
Ken Christopherson
Regular


Joined: 01 Oct 2007
Posts: 477


Report to Moderator

PostPosted: Mon Mar 24, 2014 9:42 pm    Post subject: Re: '41 A Internals: One step forward, two steps back.. Reply to specific post Reply with quote

Was able to get the gear off tonight, and looked at the (nearly gone) splines inside the gear journal. They are worn down to almost a thin line of metal down the center of where the spline should be. The shaft splines looks good, and has only a little up and down/side to side/in and out play. Hopefully everything else checks out ok. From looking down inside, everything looks to be in really good shape.
 
Back to top
View user's profile
Display posts from previous:   
Post new topic    Yesterday's Tractors Forum Index -> John Deere All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
TRACTOR   PARTS TRACTOR   MANUALS
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F).  Expedited shipping available, just call!  Most prices for parts and manuals are below our competitors.  Compare our super low shipping rates!  We have the parts you need to repair your tractor.  We are a Company you can trust and have generous return policies!   Shop Online Today or call our friendly sales staff toll free (800) 853-2651.

YT Home  |  Forums Home

Copyright © 1997-2014 Yesterday's Tractor Co.

Powered by phpBB © 2001, 2005 phpBB Group

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