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One man clutch/slave R&R with no special tools how to

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37K views 59 replies 29 participants last post by  radioactiveboyscout  
#1 ·
OK. Given that there are lots of postings about clutches and people seem to have all sorts of hassle with them, here is my way of doing a complete clutch R&R, along with the slave cylinder, without using any special tools other than a crowbar and something to put in the splines once the pressure plate is compressed. This method worked on a 1983 99 and I've just done it on a 1989 16v 900, non turbo all by myself this weekend. If your clutch is so worn that even with someone else pressing down on the pedal you can't get enough clearance to put a spacer ring in, read on...

Once you have got to the exposed clutch mechanism take all 6 clutch plate bolts out of the flywheel/pressure plate. You need to have 3 bolts of the same thread but about twice as long, as well as one 13mm nut for each bolt. Put the crowbar inbetween the pressure plate and the flywheel and pry the plate away from the flywheel. Through one of the clutch bolt holes pass one of the longer bolts and thread a nut on the other side, so the nut is between the plate and flywheel. Thread the bolt into the flywheel. Rotate the flywheel 60 degrees and do the same again and then repeat once more. Once the three long bolts are in their threads put a 13mm spanner on the nuts and gradually wind the nuts up the bolts, towards the heads. You should see the pressure plate splines start to move as they press agaisnt the release bearing. Keep on doing this until you have enough spline gap to get a spacer ring in. By the time you have done this you should also have enough gap to get the friction plate out once you have removed the three long bolts and nuts.

To remove the pressure plate and friction plate you need to unclip the handle clip near the radiator and remove the sealing plate and unscrew the plastic spinner. In the spinner thread put a clutch bolt. Use the crowbar to unstick the spigot shaft and move it forwards, towards but not into :oops: the radiator. Now you can remove the friction plate. 5mm allen key is needed for the slave bolts which is a real pain :evil: but you need to get the slave out of the way to get the pressure plate out. I found the slave and pressure plate came out together.

Once all the bits are out remove the spacer from the old pressure plate, take the old release bearing, a large socket, block of wood and trolley jack. Jack the car up and place new pressure plate under car, release bearing on splines, socket on bearing, block of wood on socket. Now lower the car onto the wooden block. The splines should depress and you should be able to get the spacer in.

To put the new clutch in is the reverse of removal :wink: It is a fiddle, but filling the slave up with clutch fluid before fitting helps bleed it. For the cost of a new slave and the hassle to do all this work again just to replace it in the future, I say do it now, all in one go.

FWIW I used a Luk kit from Euro Car Parts. It came with pressure plate, friction plate, release bearing and spacer ring :cheesy: and works fine. Cost ÂŁ65 + VAT, Part No.641880010. Slave was ÂŁ30 + VAT, Part No.137880011. Total:ÂŁ116, with free delivery.

If anyone has any comments please let me know. This method does work.

Fraser
 
#28 ·
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.
 
#29 ·
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.
 
#30 ·
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?
 
#32 ·
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.
 
#33 ·
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
 
#35 ·
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?!?
 
#36 ·
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?
 
#37 ·
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.
 
#39 ·
#41 ·
I used a antenna off a 90's chev truck,Spring steel. once you get shaped to the right size it works great.Once you have done the job once, it get a lot easier.I can pull the clutch now in under a hour.Easier than most, if not all other vehicules I have done.The proper compressoin tool when you need it saves a lot of time.
 
#44 ·
Once you have got to the exposed clutch mechanism take all 6 clutch plate bolts out of the flywheel/pressure plate. You need to have 3 bolts of the same thread but about twice as long, as well as one 13mm nut for each bolt.
Getting ready to attempt this as soon as my spacer ring arrives in the mail. Can anyone share the specs for the bolts needed so that I can buy them in advance? Besides being 13mm hex heads, are they M8? Length necessary to do the clutch compression trick? Thanks!
 
#45 ·
M8 from memory, yes
Length doesn't matter too much, as long as they are longer than the clutch bolts that you remove in the first place. Just remember to wind them in a fair amount so as to avoid the heads catching on the bottom of the bell housing as you rotate the engine with the flywheel... and try to keep the pressure plate square to the flywheel

This is all irrelevant however if you still have clutch pressure... just press the clutch and insert the tool

G
 
#46 ·
I'm having all kinds of trouble getting the clutch/slave cylinder. The car I'm trying to pull a transmission from to use for spare parts sat for 13 years in a neighbors yard and so the slave cylinder is all corroded up and without lines. To top it off the head was pulled off corroding the pistons making it impossible to even rotate the flywheel. I tried the inserting pennies to release pressure on the clutch plate but I barely get enough room to clear the alignment pins. The shaft is out and and everything is loose but it appears the slave cylinder doesn't just sit on top of the chain drive housing? There is a shoulder that fits down into the case opening in the case where it sits? I can't seem to get enough play to both clear the alignment pins and get the slave cylinder past the housing. Any suggestions?
Because the slave cylinder isn't needed I'm thinking of taking the reciprocating saw to it. Has anybody had to cut one out. I'm not looking forward to do this as this looks like a lot of work, but it may be the shortest route. Thoughts?:confused:
 
#47 ·
First of all, why use pennies? Get some washers that don't slip out. Once you have pulled all the bolts around the clutch pressure plate, use a pry bar to move the pressure plate out and stack as many washers as you can into the space, then put the bolt back in place, through the washers so they don't fall out. One way to hold all the washers in place while stacking them is a magnet. Once you have the pressure plate moved out at least 3/4 of an inch, If my memory is good, you will see that the fingers of the pressure plate are now compressed. You didn't say what you were using to keep the fingers of the pressure plate compressed after taking all the bolts and washers out.
If you don't have a locking ring, you can (if you can find) the old style spark plug wires before the silicone became popular, Silicone will compress too much. Take a length of that and tuck it in between the fingers of the pressure plate and the pressure plate housing. When you pull the bolts and washers out, the pressure plate should stay compressed. This will give you the room to pull everything out all at once. You can't just pull the slave cylinder out by it's self, it all has to come out all together. Make sure you unbolt the slave (3 cap screws) before trying to take it out.
Hope this helps.
 
#49 ·
SPG1 looks like you were thinking I was using the pennies to put between the flywheel and clutch housing. The penny method is what holds the fingers compressed similar to what you described with the spark plug wire. Either way it's not working. I'll give it one more shot to try to get the clutch disc out by stacking some washers as you suggested. After that I think I'm going to cut the slave cylinder. I'm not really worried about the grindings since I will likely only use internal parts to the transmission. Thanks for the tip on not going through the piston. If I go that route I will cut close to the base where the piston would likely not be.
 
#50 ·
Woohoo ;ol; A little shimmy here. A little tap tap there and I doin' the victory dance.
Next question. Anybody know if there are any more bolts behind the flywheel that I need to get in order to separate the engine and transmission. I've loosened all bolts on the right and left. I wouldn't have to ask but last move I did about 7 months ago my bentley manual became a victim of the moving gremlins. Haven't seen it since.
 
#52 ·
Ok, I understand now what you were using the pennies for. It really is easer to take the engine and trans out both at the same time, not separate.

As for the bolts, you will find 6 short one's on the driver side and one long one on the driver side front making it 7 total on the driver side (left side depending on where you live). The passenger side has 7 bolts as well, two are long. Over the differential cover, there is one bolt and one stud and nut. The driver side will have the bolt, but the stud is on the right side with the nut on top not on the bottom like the rest were. That is probably the one you have missed. As well, make sure the linkage for the shifter is separated.
 
#53 ·
I got it. Turned out to be the hidden stud nut. I knew to look for it after going back and rereading some other posts. Thanks for coming through though. The more posts out there about the stud nut the better the chance someone searching the forum will happen across it.

Below is a photo for all those out there having trouble separating the engine and transmission. This photo is from the front of the car looking toward the back of the engine bay. There are two fasteners on the rear of the transmission that have to be undone. The blue arrow points to a hole where a bolt is. This bolt is removed from underneath the car just like the others on the left side of the motor that come out from below. The red arrow points to a stud. This is the only stud that mates the transmission to the engine. The nut for this stud can be accessed from the top. It is just to the right of the main crankshaft pulley. It's difficult to see so you might have to reach around feeling for it. Also, there are no bolts behind the flywheel on the front of the engine. Cheers. ;ol;

Image