Welcome! Please use the navigational links on your left to explore our website.

Company Logo Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Classified Ads
Photo Ads
Tractor Parts

Community
Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Galleries
Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Articles
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs
Glossary

Miscellaneous
Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
  
Discussion Forum
:

My B will not rev up with full throttle

Welcome Guest, Log in or Register
Author 
mike

02-19-2003 19:38:48




Report to Moderator

I have a B with a new rebuilt engine, the head was reworked 3 angle valve job. Starts quick and idles fine, the compression is the same in all the cylinders. When you give it full throttle it will pick up a few more RPM and that is it.I have had the mag rebuilt.The carb came of a good running tractor. I have noticed that the clyinder that is in the 3rd position back from the waterpump is missing, again it has compression and spark. Any help would be great.

[Log in to Reply]   [No Email]
papab

02-21-2003 12:08:51




Report to Moderator
 Re: My B will not rev up with full throttle in reply to mike, 02-19-2003 19:38:48  
when checking for vacum leak use starting fluid carb cleaner dosent work very good . good luck . papab



[Log in to Reply]  [No Email]
Dale(MS)

02-21-2003 10:43:04




Report to Moderator
 Re: My B will not rev up with full throttle in reply to mike, 02-19-2003 19:38:48  
Mike, Might disconnect the throttle linkage in front of the carb at the point where the governor rod comes across in front of the radiator. With the throttle handle on the steering shaft in the wide open position the linkage from the carb to the governor arm should be about 1/16" to short to be able to go back in the hole. If it is not short you have to bend the governor arm so it is short.Check your manual about the 1/16" as that is from memory. Make sure you have the correct governor spring as the wrong tension will give the wrong response. I would get fire to #3 before doing anything. HTH Dale

[Log in to Reply]  [No Email]
dave K

02-20-2003 19:23:05




Report to Moderator
 Re: My B will not rev up with full throttle in reply to mike, 02-19-2003 19:38:48  
Does the throttle plate in the carb open fully? You can check this without the engine running. You should be able to just disconnect the throttle linkage and move the throttle plate by hand and observe it move from full open to nearly closed (depending on how the idle stop screw is set.) Check the choke plate the same way If this is fine then make sure your float level is set up right and you are getting a good fuel flow to the carb. This does not sound like a spark problem, if the carb is working I would suspect the intake manifold is leaking, this could lean out #3 also and cause it not to fire.

Dave

[Log in to Reply]  [No Email]
steve

02-20-2003 18:58:49




Report to Moderator
 Re: My B will not rev up with full throttle in reply to mike, 02-19-2003 19:38:48  
if the timeing is at top dead center, but will not advance, the tractor will start fine, but have trouble getting much more speed. you might chekc with a timing light, or check advance in the governor. pins stuck, spring broke?



[Log in to Reply]  [No Email]
rayinny

02-20-2003 18:15:44




Report to Moderator
 Re: My B will not rev up with full throttle in reply to mike, 02-19-2003 19:38:48  
Check the intake vacuum with a vacuum gauge.



[Log in to Reply]  [No Email]
MIKE Update on B

02-20-2003 17:57:07




Report to Moderator
 Re: My B will not rev up with full throttle in reply to mike, 02-19-2003 19:38:48  
Thanks for the info,
I can grab the carb linkage to overcome the Gov.but it still won,t rev up to full throttle.The bad thing is ,with all the rebuilding on this tractor it has the same problem we started with when we unstuck the motor and started it up ! The only thing not perfect on the tractor is the intake/exhaust manifold, The ear on the far right of the manifold next to the air cleaner is broken, i used a big washer to hold the two pcs together against the head,seals good dosn't seem to leak using the carb cleaner test, also had the manifold presure tested.

[Log in to Reply]  [No Email]
Duey (IA)

02-20-2003 07:47:12




Report to Moderator
 Re: My B will not rev up with full throttle in reply to mike, 02-19-2003 19:38:48  
Mike,
check that all of the linkage is free to move and not catching on something. Duey



[Log in to Reply]  [No Email]
Stedd Ed

02-21-2003 11:29:29




Report to Moderator
 Re: Re: My B will not rev up with full throttle in reply to Duey (IA), 02-20-2003 07:47:12  
Hi
With the tractor idling grab linkage at carb,,
if it doesn`t rev,,then let tracter warm up,, vales may have the right setting but now with the same specs must be set with a warm engine,,A/C did lot of this style.
Pretty acurate.



[Log in to Reply]  [No Email]
William-Mn.

02-20-2003 07:29:38




Report to Moderator
 Re: My B will not rev up with full throttle in reply to mike, 02-19-2003 19:38:48  
Hi. i have a b also,it does the same thing i believe the problem is the govenor spring,because i can easily apply pressure on the throtle rod and it speeds up quickly,but i havn't repaired it as yet,(too many rods in the fire so to speak)as for your engine missing,that shouldn't make it not rev up even with one cylinder missing,it should rev up,but it will take longer,but it does sound to me like u might have a leaky intake gasket. hope this helps

[Log in to Reply]  [No Email]
Steve in N.J.

02-20-2003 05:58:39




Report to Moderator
 Re: My B will not rev up with full throttle in reply to mike, 02-19-2003 19:38:48  
Mike,
Could be just as simple as a bad plug misfiring in #3. Doesn't matter if their new or old. (especially if they're Champion) Take the plug out of #3, stick it in #2 and fire the motor. If it starts to miss again, & it's #2 that's missin' this time, dare's yer' problem... Steve B.



[Log in to Reply]  [No Email]
Gordon

02-19-2003 22:05:19




Report to Moderator
 Re: My B will not rev up with full throttle in reply to mike, 02-19-2003 19:38:48  
Have you checked to see if the exhaust valve is opening check for bent push riod or rod not in lifter or off. Gordon



[Log in to Reply]  [No Email]
mike

02-20-2003 03:34:14




Report to Moderator
 Re: Re: My B will not rev up with full throttle in reply to Gordon, 02-19-2003 22:05:19  
Thanks for the info, but everything mentioned is correct.
Thanks



[Log in to Reply]  [No Email]
rudy

02-20-2003 14:59:11




Report to Moderator
 Re: Re: Re: My B will not rev up with full throttle in reply to mike, 02-20-2003 03:34:14  
as for #3 not firing check the simple stuff first spark plug and wire if that is not a problem go a little deeper and pull the valve cover and watch your valve operation to make sure everything is working properly after u have asertained that u are getting fire from the mag or dist.to #3 plug whichever the case might be. as for your problem of not revving up sounds like a governor problem but i have had water in the air cleaner where the oil is supposed to be freeze up and have the same problem u are describing good luck let us know how it works out rudy

[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 © 1997-2020 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