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

dual disk clutch install help

Thread Tools
 
Search this Thread
 
Old 06-05-2008 | 05:21 PM
  #1  
potsiewebber's Avatar
potsiewebber
Thread Starter
Racer
 
Joined: Mar 2006
Posts: 425
Likes: 0
Question dual disk clutch install help

I am having much trouble installing the dd in my car. i cant get the driveshaft coupler and the clutch setup into the car. there must be something i am missing. do i have to unbolt the torque tube and tranny and move backwards to do this? please help.
James
Old 06-05-2008 | 05:33 PM
  #2  
marton's Avatar
marton
Drifting
 
Joined: Nov 2001
Posts: 2,233
Likes: 0
From: zürich, switzerland
Default

do you have the shims installed to compress the pressure plate?

Marton
Old 06-05-2008 | 05:49 PM
  #3  
Mike Frye's Avatar
Mike Frye
Craic Head
Lifetime Rennlist
Member
 
Joined: Sep 2006
Posts: 8,795
Likes: 6
From: Jersey Shore, USA
Default

Originally Posted by potsiewebber
I am having much trouble installing the dd in my car. i cant get the driveshaft coupler and the clutch setup into the car. there must be something i am missing. do i have to unbolt the torque tube and tranny and move backwards to do this? please help.
James
If it was far enough back to get the old one out, you should be able to get the new one in. Having said that, I unbolted the tranny in mine at the rear and at the four bell housing bolts and moved the driveshaft back to get mine out because I couldn't get the locator pins out and it was hanging up.

If you got the old one out, the new one should go back in. If you're still having trouble when I get home from work in a few hours I'll look up the thread where I got LOTS of help getting the old clutch out and the new one in.

Here's some stuff I put on my website from it:
http://members.rennlist.com/njsharkf...move_1985.html
Old 06-05-2008 | 06:09 PM
  #4  
mark kibort's Avatar
mark kibort
Rennlist Member
 
Joined: Feb 2003
Posts: 29,817
Likes: 185
From: saratoga, ca
Default

the whole thing goes up as a unit. have the shaft off to the side, until you get the clutch up there to clear the torque tube, then, fiddle around with it until it goes in the hole. then, line up the holes for the clutch to flywheel bolts and get a few starte by a few threads. then, install the rest of them an the clutch will sinch itself down, regardless if you are using those pins. (which do make it a bit easier, but are not required) if the short shaft is not alined in this process, it will jam at an angle. make sure its in the pilot bearing before screwing the clutch to flywheel bolts in

thats all i remember.

mk
Old 06-05-2008 | 06:18 PM
  #5  
potsiewebber's Avatar
potsiewebber
Thread Starter
Racer
 
Joined: Mar 2006
Posts: 425
Likes: 0
Default

I do not know anything about pressure plate shims.
Mike your writup helps, i guess i will try and slide the tranny back. I was hoping to avoid that but here it goes...
Thanks,
James
Old 06-05-2008 | 06:40 PM
  #6  
Jim bailey - 928 International's Avatar
Jim bailey - 928 International
Addict
Rennlist Member

Rennlist
Site Sponsor

 
Joined: Jul 2001
Posts: 11,542
Likes: 3
From: Anaheim California
Default

This much is clear..."I do not know anything about pressure plate shims" you might want to read the manuals it makes life a lot less challenging. New pressure plates come with the shims in place but three bent nails (heads removed ) work equally well keeping the pressure plate from extending fully is what it is all about.
Old 06-05-2008 | 07:04 PM
  #7  
mark kibort's Avatar
mark kibort
Rennlist Member
 
Joined: Feb 2003
Posts: 29,817
Likes: 185
From: saratoga, ca
Default

I really think you dont need to move the transmission, but it works, knock yourself out.
Ive done this a bunch of times, and its a fight but it always seems to go together. the shaft should go into the pilot bearing even with the torque tube sticking out the way it does. you just have to move things around until it fits in. your arms will get tired, but eventually it will go in, and then like i said attach one of the flywheel/clutch bolts and you are home free.

good luck!
Old 06-05-2008 | 07:37 PM
  #8  
RyanPerrella's Avatar
RyanPerrella
Nordschleife Master
 
Joined: Apr 2006
Posts: 8,929
Likes: 3
From: Beverly Hills, CA
Default

Originally Posted by Mike Frye
If it was far enough back to get the old one out, you should be able to get the new one in. Having said that, I unbolted the tranny in mine at the rear and at the four bell housing bolts and moved the driveshaft back to get mine out because I couldn't get the locator pins out and it was hanging up.

If you got the old one out, the new one should go back in. If you're still having trouble when I get home from work in a few hours I'll look up the thread where I got LOTS of help getting the old clutch out and the new one in.

Here's some stuff I put on my website from it:
http://members.rennlist.com/njsharkf...move_1985.html
Nice writeup Mike
Old 06-05-2008 | 07:56 PM
  #9  
marton's Avatar
marton
Drifting
 
Joined: Nov 2001
Posts: 2,233
Likes: 0
From: zürich, switzerland
Default

Wot Jim said
HTML Code:
..."I do not know anything about pressure plate shims"
Make little U shaped brackets from a wire coat hanger to place under the three metal post heads to keep the clutch pressure plate from pressing against the bolts that you have to remove to detach the clutch assembly from the flywheel. They are described in the manual. When you reassemble the clutch, be sure to include those wire brackets; it makes the assembly much easier.


Marton
Old 06-05-2008 | 08:12 PM
  #10  
Rob Edwards's Avatar
Rob Edwards
Archive Gatekeeper
Rennlist Member
 
Joined: Sep 2002
Posts: 17,720
Likes: 2,892
From: Irvine, CA
Default

I made mine from 1/2" wide aluminum L-bracket material from an Ace hardware store, used to reinforce the edges of plywood sheet. It's pretty soft stuff, easily dremeled down to size (which are shown in the WSM).

Old 06-05-2008 | 08:53 PM
  #11  
Jim bailey - 928 International's Avatar
Jim bailey - 928 International
Addict
Rennlist Member

Rennlist
Site Sponsor

 
Joined: Jul 2001
Posts: 11,542
Likes: 3
From: Anaheim California
Default

the double disc pressure plate is different
Old 06-05-2008 | 09:09 PM
  #12  
Rob Edwards's Avatar
Rob Edwards
Archive Gatekeeper
Rennlist Member
 
Joined: Sep 2002
Posts: 17,720
Likes: 2,892
From: Irvine, CA
Default

Jim-

Dumb question- does one need to shim a DD PP at all to get it back into the bellhousing?
Old 06-05-2008 | 09:40 PM
  #13  
Jim bailey - 928 International's Avatar
Jim bailey - 928 International
Addict
Rennlist Member

Rennlist
Site Sponsor

 
Joined: Jul 2001
Posts: 11,542
Likes: 3
From: Anaheim California
Default

There are three large "rivets" which hold the pressure plate together you place the U shaped wire under the heads. Easy when it is bolted to a flywheel and compressed. Off the car you need to compress it with a big c clamp or vise then insert the U wire.
Old 06-05-2008 | 09:57 PM
  #14  
Rob Edwards's Avatar
Rob Edwards
Archive Gatekeeper
Rennlist Member
 
Joined: Sep 2002
Posts: 17,720
Likes: 2,892
From: Irvine, CA
Default

So it's analgous to the S4 PP, but the you just use wire shims instead of the fancypants S4+ 'upgraded' shims?

Sorry for being obtuse, I'm hopeless unless I have a picture to look at.
Old 06-06-2008 | 12:00 AM
  #15  
Mike Frye's Avatar
Mike Frye
Craic Head
Lifetime Rennlist
Member
 
Joined: Sep 2006
Posts: 8,795
Likes: 6
From: Jersey Shore, USA
Default

Originally Posted by RyanPerrella
Nice writeup Mike
Thanks

For the shims, I used 10AWG copper wire (lose the insulation and bend it in a U-shape) then use the c-clamp technique Jim described, slide them in under the T-shaped thingys, release clamp. Then when you bolt it to the flywheel it will compress and the shims will fall out.



All times are GMT -3. The time now is 05:17 AM.