Clutch Difficulties.

JeffreyE · Posted: Sat Dec 01, 2012 4:14 pm Post subject: Clutch Difficulties.

Hello all,
I am fixing up a cj2a
and replaced the clutch pressure plate/friction disk with one I bought from kaiserwillys.com

Now the clutch will simply not disengage, I adjusted it way way back so I know I'm getting the throwout to travel (and can see it travel through the bellhousing).

Is it possible to install the friction disk backwards on a cj3a? I have not seen any articles and even though it was earlier in the build that I did it I recall thinking that it simply would not sit against the flywheel the wrong way... wouldnt come together...
Am I correct? Is it possible to install in reverse?

Thanks for your help. This is an amazing forum.

wesk · Posted: Sat Dec 01, 2012 8:09 pm Post subject:

Two very common errors during installation often occur.

1-The disc is installed backwards and the high side of the center hub is dragging.

2-The clutch bellcrank cross shaft was installed backwards and doesn't have enough throw to release the disc. (look closely at the two arms on the cross shaft. The longer arm goes closest to the bell housing and the shorter arm goes towards the driver's frame rail.)

This is the clutch cross shaft. Little arm on the left and long arm on the right.
_________________
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

JeffreyE · Posted: Sun Dec 02, 2012 6:45 pm Post subject:

If I posted a pic through the inspection cover could you tell
if the friction is on backwards?

I reallllly dont want to take it apart

wesk · Posted: Sun Dec 02, 2012 7:08 pm Post subject:

Have you checked the cross shaft levers yet?

Am I correct in assuming the clutch worked before it was disassembled?

Exactly which parts did you replace in the clutch system?

If you have a friend depress the clutch pedal while you reach in through the inspection plate and see if you can get a finger tip on the edge of the clutch disc. Is there a gap between the disc and the flywheel or the disc and the pressure plate?

Please be sure to answer all 4 of these questions.
_________________
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

JeffreyE · Posted: Sun Dec 02, 2012 9:39 pm Post subject:

clutch worked but was starting to slip as a result of a main oil
leak so I replaced the pressure plate/friction and flywheel bushing
... did not resurface though i know i should have
I will do your recommended tests tomorrow. you have been very helpful.

JeffreyE · Posted: Tue Dec 04, 2012 5:26 pm Post subject:

My clutch linkage looks fine and i tried the finger test but could not get any lift.

I happened to have an old flywheel / friction plate sitting around and took two pictures of what the configuration could be

Should it be like this:

Or should it be like this:

I think I need to take it all down anyway because there are some tcase/tranny leak issues I want to correct but I want to make sure its done right this time

Thanks![/url]

wesk · Posted: Tue Dec 04, 2012 6:50 pm Post subject:

Picture # 2 is correct. When you get her apart you will see there's no room for the protruding disk hub in the flywheel recess when the nuts are installed for the flywheel to crank attachment. That extra room is found in the open center of the pressure plate.
_________________
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

JeffreyE · Posted: Wed Dec 12, 2012 4:43 pm Post subject:

cross shaft levers seems like it was the culpret but before i could figure it out I basically broke the cable pushing it down so hard.

It looked fine to me but i guess that little bit of leverage goes a long long way.

You have been awesome

thanks!

RICKG · Member Joined: Aug 31, 2010 Posts: 1741 Location: SO IDAHO

Jeff, I've got a spare clutch cable around here somewheres-
PM me if you want it.
_________________
keep 'em rollin'
RICKG MC 51986 DOD 01-52, '50 CJ3a

wesk · Posted: Wed Dec 12, 2012 5:40 pm Post subject:

The important thing is you got it sorted out!
_________________
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

JeffreyE · Posted: Wed Dec 12, 2012 6:03 pm Post subject:

thanks rick and wes
I wont need another cable.
i think my brother has one at the farm
I can have
thanks for the offer though!

and thanks wes for the info

artificer · Posted: Thu Dec 13, 2012 12:36 am Post subject:

When the clutch is off [& adjusted properly] the tabs on the cross shaft should be in near vertical positions. This will get enough travel & best leverage.
_________________
John GIBBINS
ASE Master Medium/Heavy Truck & Auto Technician 2002 USA
Licensed Motor Mechanic NSW # MVIC 49593 Current
YOU CAN'T TROUBLESHOOT WHAT YOU DON'T UNDERSTAND

wesk · Posted: Thu Dec 13, 2012 8:00 am Post subject:

To insure we don't introduce any confusion the only adjustment is at the cable end. The clutch cross shaft when installed correctly left side to the left and right side to the right it will be in the installed position and that position will be with the levers generally upward/downward about 20-30 degrees from vertical. Larger lever must be to the right.

Your goal is to adjust the cable until you have adequate free play at the top of the pedal travel. The final angle of the levers on the cross shaft is whatever that adjustment takes you to. Do not sacrifice the correct pedal free play to attain a more vertical positioning of the cross shaft levers.

To help make things tough for folks there are several different length cables and even a reproduction cross shaft with the ears angled incorrectly relative to each other.
_________________
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

artificer · Posted: Thu Dec 13, 2012 3:58 pm Post subject:

JeffreyE · Posted: Thu Dec 13, 2012 4:14 pm Post subject:

Man.. I cant help but notice that my setup is not nearly as pretty or clean...

I have a ways to go.
In anycase for me myself the clutch is working great.


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