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willysmjeeps.com :: View topic - M38 Clutch pressure plate to flywheel
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M38 Clutch pressure plate to flywheel

 
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Brumbach
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Joined: Jun 18, 2013
Posts: 142

PostPosted: Wed Jun 06, 2018 4:21 am    Post subject: M38 Clutch pressure plate to flywheel Reply with quote

What are the torque specs for the six connecting bolts? Can't seem to locate them. 12-17? Thanks in advance.
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wesk
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Joined: Apr 04, 2005
Posts: 13455
Location: Wisconsin

PostPosted: Wed Jun 06, 2018 8:31 pm    Post subject: Reply with quote

As a general rule in maintenance, anytime a procedure does not list a torque for a fastener and the fastener is not listed in the manuals torque listing then proceed to a "Standard Torque Chart for the grade fastener being torqued and use that figure. You must know the grade (IE grade 5 or grade Cool and the size/thread pitch of the fastener. Go to the ORD 9 SNL G-740 page 52 and you find the bolt (Or screw if you believe the parts list) is a Screw, cap, hex-hd, 5/16-18NC-2x1 1/16.

You can google up a "Standard Torque chart for a Grade 5 bolt or use one from my photo album. I would suggest you go to my album on torque and print the 5 pages shown there. Study them and then select an appropriate torque from the page 5 chart.

http://www.willysmjeeps.com/v2/modules.php?set_albumName=album326&op=modload&name=gallery&file=index&include=view_album.php



I know these WWII series manuals up thru the 50's lack a general torque chart but the Army finally got their act together in the late 60's and started including them.
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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
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rgmutchler
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Joined: Sep 28, 2008
Posts: 171
Location: Caldwell, Texas

PostPosted: Thu Jun 07, 2018 10:24 am    Post subject: Reply with quote

According to the Willys service manual SM1002-R6 the clutch pressure plate to fly wheel torque is 12-17 and the flywheel to crank torque is 35-41
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R G Mutchler
M274A5
M-38
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wesk
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Joined: Apr 04, 2005
Posts: 13455
Location: Wisconsin

PostPosted: Thu Jun 07, 2018 12:53 pm    Post subject: Reply with quote

Good catch RG. I missed that when I looked in SM 1002 torque list page 285. For some reason they list the flywheel under the "Engine" section and the pressure p[late under the "Chassis" section.

Brumbach,

I have that chart in my photo album under SM-1002:
http://www.willysmjeeps.com/v2/modules.php?set_albumName=album71&op=modload&name=gallery&file=index&include=view_album.php

Chapter U Misc.:
http://www.willysmjeeps.com/v2/modules.php?set_albumName=album325&op=modload&name=gallery&file=index&include=view_album.php


_________________
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
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