I've been having problem with my hydraulic slave cyl and I see the only way to fix this problem is to convert. There is no way I can bolt the slave cyl to the trans from the chassis and to fix this is to convert to a cable. My question is, How difficult is it to convert to a cable clutch instead of a hydraulic system and what make model year should I get the cable from?

What problem are you having with your slave cyl?

WOW! looked at the pics that is some messed up messed up. What was the PO thinking. You need to get look at both the hyd clutch set up and a cable clutch set up so that you can understand what is wrong. My 2 cents is you switch in the proper bellhousing with the right clutch fork and do this the way V designed it. If that is not an option please tell us why. Whoever did this was thinking too much and too little at the same time (my apologies if it was you) Sometimes it is important to keep things simple, that Hyd slave is just plain the worst of 2 worlds.
Sorry I can't help more. If so inclined could you explain what happened there?
My guess is someone dropped an engine tranny from a cable car into a hyd car,....Why one would do this instead of scavenging the hyd bell housing is beyound me...unless it had disappeared (been used in another car...maybe a a cable clutch car just to keep things interesting)...Anyhooo, good luck,
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Patrick, '68 220, '92 Eurovan , '53 PD4104 (highway coach conversion).

Lets just say the setup that I have was what was avaliable at the time. I found a b20f and mated that to the old bw35 that I had. After rebuilding the b20f into something mean it destroyed the old bw35 automatic. Then I bolted on a m40 that I had and on the highway it would be pushing close to 5 grand on the tach. To much rpms sucking away at gas. Then I found this m46 with OD with a custom bell housing that was originally in a 140 with a 4 puck racing clutch. I did all the work myself and at the time I thought the slave cyl setup would work now I have to design a bracket and probably attach it to the bolts on the drain plugs. I think it would work. This car has so many mods, its a crazy long list of part exchanges and then making them work. Maybe 10% original after owning the car 20 years.

Very interesting. I'm thinking you are so far from stock that you should just find whatever works. To be considered....How much throw does this set up need? Since you fabed a mount for the hyd set there is no reason you can't do it again. I would probably use a cable at this point. Personally I would make a bracket that used the 2 bolts on the stiffener where it attaches under engine. That would get you pulling. For the cable pedal you would need to really change things in order to get the leverage advantage you need. You can hack up the one you have or take something from any car. No point in staying V at this point, whatever works and fits. once you know the throw of the cable and the fittings you need,, any decent parts shop can have one made for you.
Finally how powerful is the engine? Do you really need the racing clutch? If you don't consider going stock. It would be the easiest/cheapest (if your labour cost is included) thing to do, lots of old bell housings around in scrap cars and the hyd set up with stock clutch is a long lasting well designed system. And this from someone who inherently dislikes the idea of a hyd clutch, even though I've never had a problem with one (have 2 high mileage vehicles with them), and even though I've change/adjusted/cursed more than my fair share of cable clutches. Also I don't know about racing clutches but I'm guessing they are more aggressive and have fewer/no dampening springs. This is harder on the power train and will take it's toll, maybe the stock clutch can help keep you M41 alive. ....
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Patrick, '68 220, '92 Eurovan , '53 PD4104 (highway coach conversion).

I have a b.h. and fork etc on an M41 from a 140 that I am not going to use. I also have the cable but it is damaged. asiciliano@mac.com for details

http://s964.photobucket.com/albums/ae124/Batalia/slave%20cyl/

Go to photo album. The last few pictures shows what I have better. What I'm thinking is using the drain and fill plug to attach a bracket to. Looks feasible.

I had a similar problem, and solved it with a "Pull type" slave.
photo at

http://i261.photobucket.com/albums/ii73/trconn/IMG_0965.jpg

It's a little different than your set-up, it's a B230 with an M47 bellhousing and a T-5 trans. I built the bracket from angle iron.

Why didn't you use a hydraulic setup from a 740?



More pictures here:

http://forums.turbobricks.com/showthread.php?t=212252&highlight=clutch

740 bell housing wont bolt to a b20 motor.

75 M40 will have the correct hole to use a 740 slave cylinder (the one on the left is a '75 M40, pre-68 122 on right, the bottom shows the 75 BH on a 75 B21 - special Swedish BH for the 75 model):



Your tranny looks like an M45 (would have the same hole as a 740 slave):



or M400 (using a 122/1800 slave cyl)?

It will, but it will be tilted.

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'63 PV544 rat rod, '93 Classic #1141 245 (now w/16V turbo)

I went through this hyperthetical exercise a while back on BB in this thread
Pull type slave for B20 instead of cable.

I've added the photo from it here as the one in the thread is red crossed.



The negative for me is that it's all out in the weather. Fine for SoCal maybe but not so good for many other areas. Some rubber boots would help.

Use the HTML link in Photobucket to add pics here on BB.

That is a very beautiful setup. Yea that gives me other ideas to work off from.

There are also hydraulic throw out bearings, that replace the throwout bearing and the clutch fork.


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'63 PV544 rat rod, '93 Classic #1141 245 +t

If you need a new 122 bellhousing, I should still have a couple. I'd love to get rid of another one, don't want much for them. Not sure if that will solve your issue, but if it will help let me know.

Have you got a cable mounting on the bellhousing? If so whatever cable goes with the bellhousing
is probably the one you should use.

Do you have a 140 bellhousing installed? The slave cyl bolts to the 122 bell housing, not the transmission.

So, if you have a 122 bell housing, that for some reason is damaged such that you can't bolt up the slave, you need to swap bell housings.

If you already have a 140 bell housing, then yes... to convert is likely your only option, except to swap bell housings to the 122 style... which I think would be easier than converting to cable.

If you have an M410 transmission under there, swapping bell housings would not be an option, and you'd have to convert to cable I expect.

Yep, more details please, and pictures would indeed be helpful.

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-Matt I ♥ my ♂

post some pics of your situation..use photobucket or sim as posting on this site is a PITA ..sometimes someone else's thinking will provide a solution that escaped you.
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Patrick, '68 220, '92 Eurovan , '53 PD4104 (highway coach conversion).

Yes, instead of a 'long' clutch fork with a pivot on the far side of the bellhousing, it's a short fork with the pivot on the near side.

Might vaguely be possible to use a 140 clutch pedal and drill a hole in the pedal box, not sure.

Almost guaranteed to not be worth the effort.
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'63 PV544 rat rod, '93 Classic #1141 245 (now w/16V turbo)

The bellhousing and clutch fork for the cable system is different as it is "pulled" by the cable not "pushed" by the master cylinder. I believe the pedal assembly is also different, and maybe the entire pedal box? I think these systems started appearing in 68 or 69.