Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

Rear Shift Coupler

Thread Tools
 
Search this Thread
 
Old 06-30-2004, 01:12 PM
  #1  
hupp
Burning Brakes
Thread Starter
 
hupp's Avatar
 
Join Date: Sep 2003
Location: Baton Rouge, LA
Posts: 1,101
Likes: 0
Received 3 Likes on 2 Posts
Default Rear Shift Coupler

Anyone have any tips to aid in replacing the rear shift rod coupler? My engine is out and I was in the process of dropping the TT (bad bearing) and noticed that the bushings were completely gone in the coupler -- new one is on the way.

Currently the transmission is in neutral the old coupler is currently mounted on the transmission gear selector rod. The coulpler clevis is in the horizontal (parallel to the ground). The manual states that once the coupler is mounted is should be rotated counter clockwise a couple of degrees when the trans is in neutral. If this is the case, should'nt the old coupler that I am observing be slightly off the horizontal?
Old 06-30-2004, 05:55 PM
  #2  
Vilhuer
Addict
Rennlist Member

 
Vilhuer's Avatar
 
Join Date: Jun 2003
Location: Helsinki, Finland
Posts: 9,373
Likes: 0
Received 59 Likes on 32 Posts
Default Re: Rear Shift Coupler

I think 2 degrees in WSM refer to gear lever. It should be few degrees towards driver and also few degrees back when box is in neutral between 2/3 gears. Seting lever straight and rotating real coupler few degrees before tightening arm around coupler achieves same sideways result.

That is if gearbox internal springs keep coupler straight. Seems one spring is weaker than other in older type boxes (up to '84) and coupler twists towards 4/5 gears when miles add up. Since yours is straight this shouldn't be problem.

Levers fore aft inclination can be set few degrees back by seting lever sgraight up, having dreaded front ball cup first directly on top of TT ball and then turning cup inwards one or two rotations. Doing all of the above should result correct stance for gear lever.

New coupler will have some play in fore aft direction.
Old 06-30-2004, 06:09 PM
  #3  
hupp
Burning Brakes
Thread Starter
 
hupp's Avatar
 
Join Date: Sep 2003
Location: Baton Rouge, LA
Posts: 1,101
Likes: 0
Received 3 Likes on 2 Posts
Default

Vilhuer,

Thanks for the help, but let's see if I comprehend correctly.

-Install new coupler on transmission shaft in the horizontal position and tighten set screw.
-Slide selector rod (which is attachet to the shift lever) into the new coupler.
-Rotate selector rod counter clockwise a couple of degrees then tighten pinch bolt on selector rod.

Is this correct, or should I:

-Install new coupler to transmission rod and leave set screw loose
-Slide selector rod into new coupler - coupler to be in horizontal orientation
-Tighten pince bolt on selector rod
-Rotate assembly counter colckwise on transmission shaft a couple of degrees
-Thghten rear set screw.
Old 06-30-2004, 06:26 PM
  #4  
Vilhuer
Addict
Rennlist Member

 
Vilhuer's Avatar
 
Join Date: Jun 2003
Location: Helsinki, Finland
Posts: 9,373
Likes: 0
Received 59 Likes on 32 Posts
Default

Here's how I would do it.

- Install new coupler on transmission shaft and tighten set screw. There's basically only one possible position for it if everything is right.
- Slide selector rod (which is attached to the shift lever) into the new coupler.
- Have someone inside hold gear lever dead straight in left right direction.
- Rotate coupler ever so slightly (2 degrees) towards 4/5 gears and tighten pinch bolt on selector rod.

So I vote for first option.
Old 06-30-2004, 10:29 PM
  #5  
JKelly
Burning Brakes
 
JKelly's Avatar
 
Join Date: Jan 2002
Location: Springfield, MO
Posts: 842
Likes: 0
Received 0 Likes on 0 Posts
Default

I discovered last year that the coupler boot had gotten pushed back and a bushing had fallen out of the shift coupler. I thought about buying a new coupler, but that seemed too ridiculous for me so I went to the hardware dept at Lowes home improvement and bought a hard rubber stopper for a dollar or two. I drilled a hole in it and then shaved it with an exacto knife until it fit snuggly perfect (the bushing is sort of oval shaped). It's still working great.



Quick Reply: Rear Shift Coupler



All times are GMT -3. The time now is 01:53 PM.