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 

Model M crawler engine


 
Post new topic    
View previous topic :: View next topic  
Author Message
VCguy
Regular


Joined: 29 Nov 2012
Posts: 45
Location: Turlock, CA

Report to Moderator

PostPosted: Wed Apr 24, 2013 11:07 am    Post subject: Model M crawler engine Reply to specific post Reply with quote

A friend of mine just bought a 1936 model M crawler that wasn"t running. He replaced plugs, points and condensor, rebuilt the carburater, replaced radiator core, adjusted valves, rebuilt water pump, cleaned out fuel tank and istalled new sediment bowl and filter. The engine starts and runs on all 4 cyliners but will only idle. The throttle shaft on the carb turns when hand lever is moved but rpms don"t change. Also water in radiator boiling after running about 5 minutes but temp gauge only shows 180 degrees. (new gauge) Any ideas on the throttle and cooling system problems. Thank you for your help.
 
Back to top
View user's profile
mark everett
New User


Joined: 05 May 2010
Posts: 19


Report to Moderator

PostPosted: Thu Apr 25, 2013 10:45 am    Post subject: Re: Model M crawler engine Reply to specific post Reply with quote

First off i would say radiator is blocked and or water pump not working.2nd the govener rod is stuck is the slide and will not move you have to free it the try again,Also if you have had the carb off make sure the little tab is located in the correct place on the cross shaft,or 1 last thing the linkage is binding.
 
Back to top
View user's profile
Barry Ayres
Regular


Joined: 24 Apr 2008
Posts: 23


Report to Moderator

PostPosted: Thu Apr 25, 2013 10:54 am    Post subject: Re: Model M crawler engine Reply to specific post Reply with quote

hi
the lack of throttle control is probably the sleeve around govenor spring stuck in its bore, remove the side plate behind mag and you will see the throttle shaft with spring on right hand side. you may be able to free the sleeve from here but will probably have to remove the radiator and gov cover to tap it in and out.
overheating open rad cap with engine running and check for cirulation you should see water flowing from top hose and down into core, is no or low flow remove top tank from rad. i know core is new but when engine is started rust flakes are pumped out of block and block top of core. if this is clear and it has not had a later thermosat added the problem may be the water space in the block fill of rust the only real why to clean out fully is to pull the liners, i Know people who have had success with a lye solution the process is fill rad with solution run till boiling drain and flush repeat as neccessary at your own risc...
 
Back to top
View user's profile
VCguy
Regular


Joined: 29 Nov 2012
Posts: 45
Location: Turlock, CA

Report to Moderator

PostPosted: Thu Apr 25, 2013 5:50 pm    Post subject: Re: Model M crawler engine Reply to specific post Reply with quote

When throttle lever is moved the governor linkage moves and the throttle shaft in the carb turns (took the triangular cover off end of throttle shaftand it moves) which indicates to me that there still might be a problem in the carb. Just had carb rebuilt but I guess there still could be a problem in it. It was doing the same thing before carb was rebuilt. As far as the overheating problem, even though radiator has a new core, there could have been junk in the block and head which have now blocked tubes in radiator. May end up taking top tank off radiator and checking for blockage. Thank you for the suggestions. Any other thoughts on the throttle issue?
 
Back to top
View user's profile
dej(Jed)
Tractor Expert


Joined: 20 Aug 2004
Posts: 2779


Report to Moderator

PostPosted: Fri Apr 26, 2013 4:51 am    Post subject: Re: Model M crawler engine Reply to specific post Reply with quote


Does it even have a water pump? Could it be a thermosyphon system?
M's are pretty far back tehre.
 
Back to top
View user's profile
VCguy
Regular


Joined: 29 Nov 2012
Posts: 45
Location: Turlock, CA

Report to Moderator

PostPosted: Fri Apr 26, 2013 7:20 am    Post subject: Re: Model M crawler engine Reply to specific post Reply with quote

Yes, it has a water pump. Been rebuilt.
 
Back to top
View user's profile
dej(Jed)
Tractor Expert


Joined: 20 Aug 2004
Posts: 2779


Report to Moderator

PostPosted: Fri Apr 26, 2013 9:32 am    Post subject: Re: Model M crawler engine Reply to specific post Reply with quote

VCguy wrote:
(quoted from post at 08:20:36 04/26/13) Yes, it has a water pump. Been rebuilt.


Does it have a thermostat? You don't mention that, so I thought I would ask. It could be sticking.
 
Back to top
View user's profile
Barry Ayres
Regular


Joined: 24 Apr 2008
Posts: 23


Report to Moderator

PostPosted: Fri Apr 26, 2013 10:34 am    Post subject: Re: Model M crawler engine Reply to specific post Reply with quote

Hi
I still think the throttle problem is the gov sleeve. I bet you only see the throttle shaft at the carb move with the engine stopped you could try to prove this by turning the shaft by hand from behind if the spring loaded cover is missing or with a pair of grips on the outer end of shaft. Note if you run engine with economise cover removed (cover with 3 screws) i think the engine is likly to run rich at idle.
 
Back to top
View user's profile
VCguy
Regular


Joined: 29 Nov 2012
Posts: 45
Location: Turlock, CA

Report to Moderator

PostPosted: Fri Apr 26, 2013 2:04 pm    Post subject: Re: Model M crawler engine Reply to specific post Reply with quote

No thermostat
 
Back to top
View user's profile
Display posts from previous:   
Post new topic    Yesterday's Tractors Forum Index -> Allis Chalmers 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