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.

John Deere Tractors Discussion Forum
:

rpm

Welcome Guest, Log in or Register
Author 
johndeereman

06-06-2006 16:57:30




Report to Moderator

anybody know how to get more rpms out of a 43 jd b without spending lots of money rules of the pull say no chains or strings on governer gov. has to be functioning is there any other way to get cheap rpms thanks johndeereman




[Log in to Reply]   [No Email]
Dane in PA

06-08-2006 18:14:40




Report to Moderator
 Re: rpm in reply to johndeereman, 06-06-2006 16:57:30  
I dont know much about the earlier JDs, as both of mine were '51 models, but: on my 'A', there is a bolt on the bottom part of the throttle lever (by gear box) that sticks out to stop the throttle arm. By taking this bolt out, the throttle can be pushed all the way to its maximum. I sent the rpm's on that 'A' from about 1000 to 1250. Like i said though, I dont know what the earlier models were like. hope this helps

[Log in to Reply]  [No Email]
buickanddeere

06-07-2006 15:24:16




Report to Moderator
 Re: rpm in reply to johndeereman, 06-06-2006 16:57:30  
The torque curve is dropping fast when the engine reaches full HP at 975. That why the two cylinders feel so strong with the torque rise in the 700-800 rpm range. At 1379 rpm the internal stresses will be twice as high as when at 975 rpm.



[Log in to Reply]  [No Email]
van robinson

06-06-2006 23:08:19




Report to Moderator
 Re: rpm in reply to johndeereman, 06-06-2006 16:57:30  
I agree with Drew. You need to be careful with trying to get higher RPM's out of that old girl. I mean, it is 63 years old. I have a 1940 B by the way. Also, remember, that is a long stroking engine with a lot of weight in motion. When you start running the RPMs up, you have a lot of momentum in the flywheel, those big pistons and connecting rods and crankshaft and such. If you get that much weight moving in one direction at a high rate of speed and then try to make it change directions, such as the back and forth motion of the pistons, you may wind up breaking something. Seen it done before.
You don't need higher RPMs to pull. If the gov works as it should, it will open the throttle up when it needs it.
Just my 2 cents.~

[Log in to Reply]  [No Email]
Drew

06-06-2006 18:59:55




Report to Moderator
 Re: rpm in reply to johndeereman, 06-06-2006 16:57:30  
You can put a 2nd stock spring on the gov, or put a steel strap along the spring and fasten it to the spring w/ the bolt that attaches the spring(s) to the govornor arm.

Dont get stupid with high RPM, as you are dealing with 50 Y.O. cast iron. With a stock engine, as soon as you put a load on the engine, you are going to fall to stock RPM or below, so you arent really going to gain a thing.



[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