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This is an stunning piece of lateral thinking. Absolutely brilliant. I wish I had read it last week before, in desperation, I attacked my release bearing with a cold chisel. The problem I found was that I could not depress the clutch enough with the old slave cylinder to get the spacer ring in, or anything except a 3mm piece of wire, and this didn't give enough clearance. Getting the new clutch back with the correct spacer ring inserted was much easier. Incidentally, the clutch I took off, which I think was original Saab, had a much larger diameter opening over the spring fingers than the Sachs one I replaced it with. The spacer ring I had (which came with another clutch kit from Eurocarparts some years ago) fitted the Sachs clutch perfectly but was really too small for the original clutch. The Bently service manual mentions that two sizes of spacer ring are available. I also like the idea of grinding off the spring fingers but this would create a lot of filings.

Does anyone know the correct torque setting for the six clutch retaining bolts? No mention in Haynes or Bently.
 
I've got a little problem. My clutch slave cylinder was working fine, so when my daughter pushed in the clutch pedal I had no problem inserting the spacer. The problem is that now that I've got all the hex screws and clutch cover bolts out, the clutch cover, disk, and slave cylinder hang up on something and don't want to slide out. It's almost as if the clutch disk is hanging up on something and the whole group just doesn't want to slide out. Oh, these aren't hanging up on the alignment pins in the face of the flywheel; they are all out of the way and look like they shouldn't hang anything up.

Are there any tricks to getting the clutch disk to stick closer to the cover when I slide them out?

Scott
 
Yup, of course the shaft is out. The clutch cover is free to move about two inches away from the axial centerline of the flywheel before it gets hung up. I had more time to look into the gap between the clutch cover and the flywheel today (since that engine is out on the garage floor now) and it looks like a pilot bushing or something has slid out to tangle with the hub of the clutch disk itself. It looks like I'll have to separate the engine from the tranny to get the clutch cover and slave out of there... something I was planning on anyway.

Scott
 
If you're planning on replacing the clutch anyway, try cutting it to get the slave cylinder out. If not, see can you refit the clutch shaft and use that to push the spigot bearing back into place or some such.
 
Matthew said:
Factory manual specifies all 8mm bolts at 23-28Nm (17-21ft/lb).

I always thought the pressure plates with the smaller centre were on the earlier cars.
Cheers.

PartsForSaab supplied the clutch. It fitted and works. Nice and smooth and doesn't slip. I did wonder if the original Ruby clutch was 'uprated' for the extra power. May be why it was such a bother to get off.
 
I've done this method before and it is OK but I used to do another method when I worked for an independant SAAB shop back in '97. I did my proceedure last night and it was MUCH faster than the long bolt and nut trick.

Here is what you do:
Take a grease gun and put a fitting on it that will either thread into the slave cylinder or a quick connect that will snap onto a bleeder screw. Remove the hydraulic line from the slave and either screw the fitting from the grease gun in to the slave or attach a spare bleeder screw to the spot where the hydraulic line came out of the slave and attach the quick connect to the spare bleeder (leave a little loose so grease can be injected). Pump grease into the slave cylinder and insert the special tool into the clutch plate. Then remove the grease gun and use a pry bar to compress the slave cylinder.

I did this last night on a car with a blown slave cylinder and the whole thing took me about one minute (not including modifying the grease gun using a spare - broken - clutch hydraulic line took just a few minutes).

Of course, like the bolt and nut proceedure, it only makes sense to do if you have a blown slave cylinder. We actually did this in the SAAB shop I worked in even though we had the factory tool.

I like doing it this way because its faster, safer, and you don't risk scratching the flywheel or damaging the clutch disk.

As for removing the tool from the clutch plate when re-installing the clutch, we always just pried the tool out using a screwdriver when we couldn't find the factory clutch compression tool. That had been done hundreds of times and the clutch plate ring tool still worked fine. I've done it to my own clutch plate ring tool 15 to 20 times and it hardly has any scratches on it.
 
geoffc said:
Pump grease into the slave cylinder and insert the special tool into the clutch plate. Then remove the grease gun and use a pry bar to compress the slave cylinder.
I thought mineral grease caused rubber seals to swell and should not be used in hydraulic components.

Am I missing something or is this procedure not going to cause the seals in the slave to fail?

Red rubber grease might be OK?
 
When I had to change the blown slave on my stepson's 92 S, I didn't have any help, and had to get things done quickly. I was only able to get at the fingers with a prybar, so I used 1/4" ID (6mm?) Aluminum tubing and some safety wire. Cut the tubing into 1" (25.4mm) pieces and spaced them so each piece covered the edge off two fingers. Used the safety wire to keep all the pieces together , and to give me a positive way to account for everything coming out. Now he bought a replacement clutch and pressure plate, so I had a machine shop press in the fingers on a press so I could install the spacer before installing it on the car. Worked good, but I don't think copper tubing would be tough enough. The scrap tube was either 6061 or 5052 aluminum.
 
I just removed the clutch without the compression tool in a different way. I used the lug nut/bolt wrench that came with the car and a 27 mm socket to compress a few fingers and then used a screw driver to push part of the spacer ring between the pressure plate fingers. Once I got all of the once done that were compressed enough, I rotated the flywheel and continued until all the fingers were compressed. Here is a picture of how I did it. I did this with the engine removed from the car I don't know how practical this method is when the engine is in the car.
Image
 
Sorry to jump in like this but Jim's comment forced me to think about that, and I could not find anything about clutch chatter.
Don't try to re-use that Pressure Plate; you're likely to get Clutch Chatter.
What is the reason for something like that?
I've done clutch job recently (new pressure plate, disc and release bearing) and there is some chatter out of that area (clutch) when the engine is cold?!?
 
Jim Mesthene said:
I've seen that method work many times, but it's hard on the Pressure Plate.
Don't try to re-use that Pressure Plate; you're likely to get Clutch Chatter.
milos said:
What is the reason for something like that?
Likewise......
I was going to ask something similar.........

Jim, is there anything particular (other than the rust and general condition) in that photo that caught your eye?
 
Prying on the Clutch Pressure Plate Fingers individually instead of compressing them all at once usually bends some of the Fingers. That usually causes uneven engagement and hot spots.
Using the Slave Cylinder, the Special Tool or the very gradual (and even) Nut & Bolt method will compress the Plate evenly without bending.
 
I tried using an ignition lead as the clutch spacer ring — it just compressed and didn't work. It was also very fiddly to push in. I think a wire ring would be a lot better, for what it's worth
 
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