Create an account Home  ·  ·  Forums  ·  ·  Articles  ·  ·  Downloads  ·  ·  Photo Gallery  
Login
Nickname

Password

Don't have an account yet? You can create one here.

Navigation
· Home
· Article Archive
· Article Submit
· Downloads
· FAQ
· Forums
· Members List
· Photo Gallery
· Private Messages
· Web Links
· Your Account

Search Articles



Forums

Wiper motor...which is the correct one?
Lead additive, one more question.
M31C mount with or without replica weapon
Backfire and Hesitation
Wanted: Steering column and shaft for M38-1952, or late CJ2A
2024 CT. MILITARY VEHICLE SHOW AND FLEA MARKET- JUNE 15,2024
Brake Line
How to link full size photos in posts
Clutch release bearing support cast tab for return spring
T90 case replacement required?

Willys M Jeeps Forums


willysmjeeps.com :: View topic - m38a1/ m170 transmission output shaft nut
 Forum FAQForum FAQ   SearchSearch   UsergroupsUsergroups   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

m38a1/ m170 transmission output shaft nut

 
Post new topic   Reply to topic    willysmjeeps.com Forum Index -> Technical Knowledge Base
View previous topic :: View next topic  
Author Message
bl5211a
Member


Joined: Dec 28, 2006
Posts: 344
Location: NC

PostPosted: Wed Apr 16, 2014 7:07 pm    Post subject: m38a1/ m170 transmission output shaft nut Reply with quote

OK, So there is a drive gear and nut on the end of the transmission output shaft.

Couple Questions:

1) I could not find a torque value for the nut thats on end of transmission output shaft? This is the one that you get to thru thru transfer case rear cover and also has a cotter pin to help retain from backing off.

2) Also the transfer case input gear that the nut holds on, mine had a heavy black grease on the spline, is this just gear grease or is it a special grease. Seemed maybe moly based..?

Brian
_________________
Brian
1955 M170
1940 BSA M20
Back to top
View user's profile Send private message
wesk
Site Administrator
Site Administrator


Joined: Apr 04, 2005
Posts: 16227
Location: Wisconsin

PostPosted: Wed Apr 16, 2014 11:06 pm    Post subject: Reply with quote

Brian,

Have you downloaded these two essential rebuild guides:

http://www.willystech.com/wt/T90RebuildGuide/T90rebuild.htm

http://www.willystech.com/wt/Model18TCase/Model18TransferCase.html

The torque info in the civvy manuals is more helpful and user friendly.

http://www.willysmjeeps.com/v2/modules.php?full=1&set_albumName=album325&id=285_Torques&op=modload&name=gallery&file=index&include=view_photo.php
CJ2A, 3A manual

http://www.willysmjeeps.com/v2/modules.php?full=1&set_albumName=album306&id=362_G&op=modload&name=gallery&file=index&include=view_photo.php
CJ3B, CJ5 manual

http://www.willysmjeeps.com/v2/modules.php?full=1&set_albumName=album306&id=364_G&op=modload&name=gallery&file=index&include=view_photo.php
CJ3B, CJ5 manual
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
Back to top
View user's profile Send private message Send e-mail Visit poster's website
bl5211a
Member


Joined: Dec 28, 2006
Posts: 344
Location: NC

PostPosted: Sat Apr 19, 2014 7:08 am    Post subject: Reply with quote

thanks, could not find torque for the transmission output shaft nut (or transfer case input gear nut, so i tightened until cotter pin hole lined up and installed cotter pin.

Brian
_________________
Brian
1955 M170
1940 BSA M20
Back to top
View user's profile Send private message
wesk
Site Administrator
Site Administrator


Joined: Apr 04, 2005
Posts: 16227
Location: Wisconsin

PostPosted: Sat Apr 19, 2014 7:56 am    Post subject: Reply with quote

It's in both of the last three charts I linked you to. The tranny and transfer specs are under chassis not engine. The early flat fender manual states "Transmission mainshaft nut 80-110 Ft Pds" The later CJ3B & CJ5 manual states " Transmission mainshaft nut 130-170 Ft Pds" And when you cannot find a specific torque listed for an application you determine the correct torque from the standard torque chart which is based on Grade 5/8 bolts and their diameter and thread pitch.


Early flat fender chart


Later CJ3B/CJ5 chart. (Note general/standard torque reference chart at bottom of the page.

These later civilian manuals are a tremendous help to do-it-yourselfers and are not very expensive.


Early flat fender manual. A good companion to your early M38 military manuals.


Later CJ3B & CJ5/6 manual. A good companion to your late (52) M38 & M38A1 series military manuals.
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
Back to top
View user's profile Send private message Send e-mail Visit poster's website
bl5211a
Member


Joined: Dec 28, 2006
Posts: 344
Location: NC

PostPosted: Sat Apr 19, 2014 8:43 am    Post subject: Reply with quote

Excellent, thanks for the help. It is greatly appreciated, and i will check..

Thanks,
Brian
_________________
Brian
1955 M170
1940 BSA M20
Back to top
View user's profile Send private message
bl5211a
Member


Joined: Dec 28, 2006
Posts: 344
Location: NC

PostPosted: Sat Apr 19, 2014 9:26 am    Post subject: Reply with quote

Hey wes,

This is what i am up against. If i bring nut up to torque (130 to 170), hole for cotter pin is fully covered. When i back off and start over, i can only get it up to 85 ftlbs with cotter pin hole open. I tried flipping washer..

Brian
_________________
Brian
1955 M170
1940 BSA M20
Back to top
View user's profile Send private message
wesk
Site Administrator
Site Administrator


Joined: Apr 04, 2005
Posts: 16227
Location: Wisconsin

PostPosted: Sat Apr 19, 2014 1:13 pm    Post subject: Reply with quote

Use the 80-110 figure in the early manual. The late model also addresses two other different trannies and they probably raised the number to cover all three.

It is a common problem arriving at the proper torque with wholes aligned on cotter pin installations. The recommended solution is to switch wash thickness and if still an issue try several different nuts.
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
Back to top
View user's profile Send private message Send e-mail Visit poster's website
bl5211a
Member


Joined: Dec 28, 2006
Posts: 344
Location: NC

PostPosted: Sat Apr 19, 2014 1:55 pm    Post subject: Reply with quote

85 ft lbs with cotter. Thanks.. Smile
_________________
Brian
1955 M170
1940 BSA M20
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    willysmjeeps.com Forum Index -> Technical Knowledge Base All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Powered by phpBB © 2001 phpBB Group
Forums ©

 



PHP-Nuke Copyright © 2005 by Francisco Burzi. This is free software, and you may redistribute it under the GPL. PHP-Nuke comes with absolutely no warranty, for details, see the license.