Yesterday's Tractor Co.
Shop Now View Cart
   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 inLog in 

uts kec crankshaft specs


 
Post new topic    
View previous topic :: View next topic  
Author Message
iowa806
New User


Joined: 04 Mar 2018
Posts: 19


Report to Moderator

PostPosted: Tue Mar 31, 2020 5:40 am    Post subject: uts kec crankshaft specs Reply to specific post Reply with quote

Working on a 1939 UTS with kec engine. The rod journals all measure 2.364 but the 3 mains are all different. 2.496, 2.556 2.621
any idea what standard size is? All i have is a I&T book and nothing in the book goes back that old. The crank casting # is KE-401 if that helps
 
Back to top
View user's profile
molinegb
Tractor Expert


Joined: 13 Feb 2005
Posts: 2720


Report to Moderator

PostPosted: Tue Mar 31, 2020 7:02 am    Post subject: Re: uts kec crankshaft specs Reply to specific post Reply with quote

KEC motor uses no precision bearings. No spec's that I am aware o. Less than 2.342 on con rods use oversize shell. I have NOS bearings. Two standard and 2 over. Crank could be changed to a KEF one and use precision as well as change rods.
 
Back to top
View user's profile
george md
Tractor Expert


Joined: 22 Oct 2001
Posts: 2373
Location: Whiteford , Md

Report to Moderator

PostPosted: Tue Mar 31, 2020 11:45 am    Post subject: Re: uts kec crankshaft specs Reply to specific post Reply with quote



Iowa,
I have an old FM shop & bearing manual that lists the KEC.

Rods 2.372-2.3725

Main # 1 2.497-2.4975
Main #2 2.550-2.5505
Main #3 2.625-2.6255

george
 
Back to top
View user's profile
iowa806
New User


Joined: 04 Mar 2018
Posts: 19


Report to Moderator

PostPosted: Wed Apr 01, 2020 6:26 am    Post subject: Re: uts kec crankshaft specs Reply to specific post Reply with quote

Thank you for the replies. I will let the machine shop know and see what i can come up with for bearings
 
Back to top
View user's profile
jr1983
Long Time User


Joined: 27 Apr 2014
Posts: 1252
Location: Illinois

Report to Moderator

PostPosted: Wed Apr 01, 2020 3:13 pm    Post subject: Re: uts kec crankshaft specs Reply to specific post Reply with quote

How does one tell if the crank is good if there are no specs? I believe you but how does one rebuild one of these?
 
Back to top
View user's profile
molinegb
Tractor Expert


Joined: 13 Feb 2005
Posts: 2720


Report to Moderator

PostPosted: Wed Apr 01, 2020 3:35 pm    Post subject: Re: uts kec crankshaft specs Reply to specific post Reply with quote

No specs for MM/Twin city that I can find anywhere. These were babbitt motors and no bearings were precision. Shims were added or removed according to what was required. All motors had a stack of shims. As babbitt wore shims were removed till no shims would help. Then new babbitt was poured and start over. Babbitt could be scraped with a knife to fit. In KT book it says run motor until it starts pounding. Through handholes use a bar while someone slowly cranks to find bad rod bearing. Then remove shims to tighten. It would be rare in a babbitt engine to hurt crankshaft. Babbitt is real soft. Different rods were used to hold babbitt shell in place. Crankcase also different to hold main shells in place. Plastigage can be used to set up bearings. It takes time to set up as each bearing is torqued and tested. If to loose/tight start over. Several different thicknesses of shims used.
 
Back to top
View user's profile
jr1983
Long Time User


Joined: 27 Apr 2014
Posts: 1252
Location: Illinois

Report to Moderator

PostPosted: Wed Apr 01, 2020 6:49 pm    Post subject: Re: uts kec crankshaft specs Reply to specific post Reply with quote

Thanks. That's good info. I really appreciate it.
 
Back to top
View user's profile
Dennis P
Regular


Joined: 06 Aug 2008
Posts: 247


Report to Moderator

PostPosted: Thu Apr 02, 2020 4:16 am    Post subject: Re: uts kec crankshaft specs Reply to specific post Reply with quote

For whatever it?s worth, I had the rod journals all machined to the same size. I then poured new babbit and bored them to match the rods. If they are egg shaped you need to do more than reshim.
 
Back to top
View user's profile
molinegb
Tractor Expert


Joined: 13 Feb 2005
Posts: 2720


Report to Moderator

PostPosted: Thu Apr 02, 2020 7:10 am    Post subject: Re: uts kec crankshaft specs Reply to specific post Reply with quote

If crank throws were egg shaped I would just go get a better crankshaft and bearings rather than getting machined.
 
Back to top
View user's profile
iowa806
New User


Joined: 04 Mar 2018
Posts: 19


Report to Moderator

PostPosted: Thu Apr 02, 2020 7:15 am    Post subject: Re: uts kec crankshaft specs Reply to specific post Reply with quote

very interesting, I am new to the moline world and am learning as i go. You mentioned switching to a kef crank and rods so everything is precision. Do you think i would be better off going that route rather then getting new bearings and trying to shim them?
 
Back to top
View user's profile
molinegb
Tractor Expert


Joined: 13 Feb 2005
Posts: 2720


Report to Moderator

PostPosted: Thu Apr 02, 2020 8:53 am    Post subject: Re: uts kec crankshaft specs Reply to specific post Reply with quote

You will need another crankcase also. Whole KEF bottom end needed. Costs alot to get machining done. Or other option find whole motor. To me with specs motor not all that worn. Are you going to work it? A 1939 UTS not that rare of tractor.
 
Back to top
View user's profile
iowa806
New User


Joined: 04 Mar 2018
Posts: 19


Report to Moderator

PostPosted: Fri Apr 03, 2020 6:35 am    Post subject: Re: uts kec crankshaft specs Reply to specific post Reply with quote

No, we wont work it. It was my grandfathers tractor so will just fiddle around the yard with it.
 
Back to top
View user's profile
:   
Post new topic    Yesterday's Tractors Forum Index -> Minneapolis Moline All times are GMT - 8 Hours
Page 1 of 1

 
Jump 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 ]

YT Home  |  Forums

Modern View Forum 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