(800) 853-2651
SHOP NOW

Teeth on crankshaft on M.

T

tim-m

Member
Does anyone have a crankshaft out of a M , that can tell me how many teeth the gear on the crankshaft has ? I am in the process of building a governor testing stand , and need to know how many teeth the driver has, to determine the gear ratio. THANK YOU, for your time... Tim..
 
The crankshaft gear has 29 teeth, and there is an idler gear between the crankshaft gear and the governor gear that has 41 teeth,
 
Could look but since they use a 58 tooth cam gear the crankshaft gear would be 29 tooth. Do you already know the idler gear tooth count for figuring the governor RPM? 41 I think but better double check.
 
Idler gear tooth count doesn't matter. Only crank and governor tooth counts are needed to calculate governor drive ratio and RPM.
 
Are you sure about that. I'm never sure about anything anymore. But thinking a 29 tooth driving a 41 tooth then the 41 tooth driving a 17 tooth would equal the governor turning more RPM than the crankshaft. If the governor and crank turned the same RPM the crankshaft gear count wouldn't even be needed. Maybe I'm missing something and it won't be the first stupid mistake I made.
 
Okay I see my mistake but the governor RPM is still going to be higher than the crankshaft unless I'm still messed up.
 
Correct, since the governor gear is smaller than the crankshaft gear, the governor will turn faster than the crankshaft.
 
Thanks to everyone for your time and interest in my question. Will post some pictures when I get it all put together. Great bunch of guys !!!!!!
 
You got it!

Governor RPM is greater than crank RPM.

How much greater? Governor RPM = Crank RPM x 1.70

(29 teeth / 17 teeth = 1.70)
 
You must log in or register to reply here.

Similar threads

T
Question on Farmall m
Replies
5
Views
391
used red MN
U
K
Governor/cam gear ratio
Replies
6
Views
2K
Jamisonj1
J
L
Farmall 656 C263 camshaft/crankshaft timing marks?
Replies
7
Views
422
gene bender
G
WIFarmKid
  • Question
J.I. Case 6 speed powershift gear ratios
Replies
1
Views
396
connor9988
connor9988
B
1948 MM UTU 4.625x6.625 Crankshaft help needed!!
Replies
2
Views
362
T.R.K.
T
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.

Copyright © 1997-2024 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

Back
Top