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.

Allis Chalmers Discussion Forum
:

1937 AC WC

Welcome Guest, Log in or Register
Author 
Rex37WC

08-31-2006 18:14:30




Report to Moderator

Calling all Allis Chalmers experts! I've had a '37 WC for a couple years, rebuilt the carb, steering system, and put on a new manifold. What's got me puzzled is 1st gear is faster than 2nd gear. I killed it a couple times trying to get it on the trailer (in"1st" gear)the day I bought it, and after I got it home and ran it for a while I understood why. How did this happen and how do I fix it? Is it possible someone put a gear or two in wrong? I haven't taken the transmission apart yet. Also, even with the carb rebuilt, new manifold and no air leaks, it still idles best with about 1/2 choke on. Any ideas?

[Log in to Reply]   [No Email]
rex37wc

09-06-2006 12:28:10




Report to Moderator
 Re: 1937 AC WC in reply to Rex37WC, 08-31-2006 18:14:30  
Butch, After all the work described was done it idled and ran perfectly for a while. This year it didn"t. Today I did found what I think is an air leak. On the Zenith carb. above and behind the air adjustment screw is a flat spot in the casting that faces the motor at @ 45 degree angle. There is a hole in that flat spot that I can hear air going into. Should that hole be plugged? I sealed it last year, but the seal gave up this year. There is a similar flat spot with a small hole that faces away from the engine, but doesn"t seem to draw air. The motor runs just as well with the air screw in the carb or in my hand. If I spray carb cleaner into the air screw hole, the engine falters. The air screw is also very loose in it"s threaded hole. I made a leak finder with a pair of hearing protectors, vinyl tubing, copper tubing and brass fittings. This one has the flattend pipe on a 45 degree elbow exhaust and you cant"t hear much else when it"s running.

[Log in to Reply]  [No Email]
David Maddux

08-31-2006 19:50:11




Report to Moderator
 Re: 1937 AC WC in reply to Rex37WC, 08-31-2006 18:14:30  
I had a WC that did the same thing. The shifter was worn enough that it was going in third instead of first. You just need to take the shifter lever to a machine shop and have the groove rebuilt and the go to Agco and buy a new oversized shifter pin. Then it will be as good as new.



[Log in to Reply]  [No Email]
rex37wc

09-06-2006 12:10:29




Report to Moderator
 Re: 1937 AC WC in reply to David Maddux, 08-31-2006 19:50:11  
David, Thanks for the direction. Today I found first gear by moving the shifter to the left a little farther than I could comfortably reach. Sounds like a nice little winter project.



[Log in to Reply]  [No Email]
Butch(OH)

08-31-2006 19:02:36




Report to Moderator
 Re: 1937 AC WC in reply to Rex37WC, 08-31-2006 18:14:30  
The idle problem is a too lean mixture, simple as that. Since you seem to be sure it has no air leaks the other possibilities are fuel supply, although that usually affects operation under load more than idling, carb passages blocked or throttle shaft and bores worn out and sucking air past the shaft(only seen one that bad) The other problem would be easier to figure out if one was able to see the thing, lots of questions. Are you sure you had it in 1rst and not 3rd? On our WC and WF with rebuilt towers it takes a conscience effort to put them in first otherwise they go to third instead. If your getting it into the right gear is 2nd slower than 3rd? Do the other gears seem to be the right speed and only 1st is off? Been too long since I had the top off of a WC trans to tell you for sure if the gears could be put in wrong. Im think'en that reverse runs on the gear for first on the countershaft, if so you wouldnt have reverse if the gears were not in the right place unless somebody custom geared reverse so they could put the forward gears in wrong, dont make sence but I have seen more 'tupid things done.

[Log in to Reply]  [No Email]
rex37wc

09-06-2006 12:34:02




Report to Moderator
 Re: 1937 AC WC in reply to Butch(OH), 08-31-2006 19:02:36  
Butch, I sent a reply to your advice for my problem but didn't get it in the right spot in the forum. It's under my original post. Anyway, I think it's time for a full sparkplugs, wires, and valve adjustment tuneup in addition to whatever carb. work is needed.
Rex



[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