Concentric Slave Cylinder
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Concentric Slave Cylinder
I have an 87 F-150 4.9L with a ZF-5 speed transmission. My clutch slave cylinder has been leaking for some time so I finally decided to pull the transmission and replace it. I got the transmission out and removed the bolts from the concentric slave cylinder, but it seems that no matter what I do it will not come off. Any suggestions?
Also if anyone has a logical explanation as to why Ford would design this the way they did, I would love to hear it. Why would they put a part that is semi-common to failure in a place where transmission removal is necessary to replace it? You would think they could make some sort of access panel or something on the bell housing.
Also if anyone has a logical explanation as to why Ford would design this the way they did, I would love to hear it. Why would they put a part that is semi-common to failure in a place where transmission removal is necessary to replace it? You would think they could make some sort of access panel or something on the bell housing.
Lead Driver
Joined: Feb 2002
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From: Greater Austin, Texas
It's probably seized to the input shaft bearing cover - just soak it in some penetrating oil and tap on it back and forth with a hammer.
The design is a good one if you know how a "regular" TO bearing works. This is better IMO.
The design is a good one if you know how a "regular" TO bearing works. This is better IMO.
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Ok I will try that. I also read on some other posts that DOT 5 is recommended to extend the life of the parts. Can I simply drain out the DOT 3 that is in there now and refill it with DOT 5 or will I need to flush out the system?
Postmaster
Joined: Nov 2011
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From: SW Florida
Don't mix DOT3 and DOT5. One is silicone and the other is... whatever regular brake fluid is made of. I'd flush everything out first. Never tried it but I hear if you mix the two in a glass jar you can literally see why it's a bad idea.
Lead Driver
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The internal slave is better, in a perfect world. It allows for greater release pressure with an easy pedal throw. Beefy clutch springs with internal slaves feel as soft as factory, whereas heavy springs combined with external conventional can put up one hellofa fight at the pedal.
In a world where parts wear out, it can be a pain in the *** and perhaps more trouble than its worth.
Go with an oem slave and you won't have to mess with it for years and years. Even a used OE slave that's in good shape is better than an aftermarket slave.
In a world where parts wear out, it can be a pain in the *** and perhaps more trouble than its worth.
Go with an oem slave and you won't have to mess with it for years and years. Even a used OE slave that's in good shape is better than an aftermarket slave.
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