Transmission mount cure - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

 
LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 02-12-2013, 02:23 PM Thread Starter
Moderator
 
Jim_Lou's Avatar
 
Join Date: Dec 2001
Location: Belleville, Illinois
Posts: 11,482
Thanks: 15
Thanked 18 Times in 13 Posts
         
Transmission mount cure

At least I hope it is. The rubber of the last mount is cracking after less than a thousand miles, and the one before that separated completely in less than a year. I attribute that to three factors: The tall six cylinder rocks back and forth a lot, everything gets a nice dose of oil periodically, and the standard mounts are made in China, apparently from used condoms. So this is my plan.

New adapter top:
DSCN5476a.JPG

From the bottom:
DSCN5477a.JPG

With Prothane mounts in position:
DSCN5478a.JPG

My hope is that the Prothane mounts will be more or less impervious to the oil mist, and that the two of them will help keep the engine from rocking around so much. There used to be a little arm sticking out to the side from the mount that apparently was supposed to restrain the rocking, but I don't think it did much, and it long ago disappeared after the rubber bushings disintegrated.

EVERYTHING's easy for the guy who doesn't have to do it.
B. Dash Fabrication
Jim_Lou is offline  
Sponsored Links
Advertisement
 
post #2 of (permalink) Old 02-16-2013, 12:19 PM
Addict
 
stump runner's Avatar
 
Join Date: Dec 2007
Location: Battle Ground Washington
Posts: 423
Thanks: 0
Thanked 5 Times in 5 Posts
 
If nothing else, it sure looks pretty. You always do really nice work, Ji
m.
stump runner is offline  
post #3 of (permalink) Old 02-17-2013, 11:02 AM Thread Starter
Moderator
 
Jim_Lou's Avatar
 
Join Date: Dec 2001
Location: Belleville, Illinois
Posts: 11,482
Thanks: 15
Thanked 18 Times in 13 Posts
         
Update

Thanks! It worked splendidly! There's now some harshness from engine vibration getting into the frame and to the body, but it completely cured the clutch chatter and stopped the transmission and transfer case from bumping around. Over rough terrain the shift lever used to thrash around so much that the snow plow switches on it would rattle, and that's gone too.

Initially it had the transmission and transfer case a little too high for comfort, so I had to take it out and trim a tenth of an inch off the thickness.

With the trial fits, modifications and drilling holes I had the skidplate off and on four times. That has always been a pain in the butt, but this time it was a piece of cake. I don't know why I never thought of this before.

DSCN5479a.JPG

I cut the heads off a couple of junk bolts and turned a point onto them. Then I screwed them into the middle bolt holes in the frame. With the skidplate balanced on the floor jack I just raised it over the alignment pin on the near side, then went to the other side and got it into position. Then the skidplate jacked right into place. I didn't even put bolts in until everything was ready for final assembly. When the outer four bolts were tight I replaced the alignment pins.

EVERYTHING's easy for the guy who doesn't have to do it.
B. Dash Fabrication

Last edited by Jim_Lou; 02-17-2013 at 11:05 AM.
Jim_Lou is offline  
Sponsored Links
Advertisement
 
post #4 of (permalink) Old 02-17-2013, 07:53 PM
Can't Get Enough
 
JBTater's Avatar
 
Join Date: Jul 2003
Location: S.E. Indiana
Posts: 1,253
Thanks: 0
Thanked 1 Time in 1 Post
 
Say, you seem to KSS.
Nice work, Jim.

Jim
__________________________________________
OMG!!! I look just like Jay Sherman.
JBTater is offline  
post #5 of (permalink) Old 02-18-2013, 11:20 PM
Official Historian
 
WILL's Avatar
 
Join Date: Sep 1999
Location: Hot Springs, AR
Posts: 8,339
Thanks: 1
Thanked 5 Times in 5 Posts
 
Quote:
Originally Posted by Jim_Lou View Post
I cut the heads off a couple of junk bolts and turned a point onto them. Then I screwed them into the middle bolt holes in the frame. With the skidplate balanced on the floor jack I just raised it over the alignment pin on the near side, then went to the other side and got it into position. Then the skidplate jacked right into place. I didn't even put bolts in until everything was ready for final assembly. When the outer four bolts were tight I replaced the alignment pins.
Looks great. I used to do something similar. I used 4" bolts in the center holes to line up the skidplate as it went up. I didn't think about cutting the heads off. I did cut the heads off some long bolts and cut some slots in the end for a screwdriver to use as alignment dowels for guiding the transmission bell housing up to the engine.

"As the circle of my knowledge grows, so grows the circumference of the unknown." - Isaak Newton
WILL is offline  
post #6 of (permalink) Old 03-03-2013, 11:14 AM
Addict
 
stump runner's Avatar
 
Join Date: Dec 2007
Location: Battle Ground Washington
Posts: 423
Thanks: 0
Thanked 5 Times in 5 Posts
 
You see? This is why I love this place. It's the simple stuff that I can take with me and use. I used a few long bolts for alignment dowels before to line the transmission up with the engine, but it never occurred to me to cut the heads off the bolts much less cut a slot in the end. Sure would have been easier.
stump runner is offline  
post #7 of (permalink) Old 03-04-2013, 07:49 PM
Keyboard Implanted
 
Rio_Grande's Avatar
 
Join Date: Jun 2000
Location: Southeastern Indiana
Posts: 4,766
Thanks: 3
Thanked 2 Times in 2 Posts
 
Jim, I think you and I think similarly, but you you have the tools to make it happen.

Ya only go around once, best to enjoy it the first trip.
Rio_Grande is offline  
post #8 of (permalink) Old 03-06-2013, 06:05 PM Thread Starter
Moderator
 
Jim_Lou's Avatar
 
Join Date: Dec 2001
Location: Belleville, Illinois
Posts: 11,482
Thanks: 15
Thanked 18 Times in 13 Posts
         
Keep working at it Jeff. You'll get there. I've been collecting tools for well over fifty years, and most of my expensive ones have come since the kids moved out.

EVERYTHING's easy for the guy who doesn't have to do it.
B. Dash Fabrication
Jim_Lou is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome