Slave cylinder keeps over extending

[stephenjeep]

Hi, I have a 93 4.0 5 speed ranger. I have had the slave cylinder replaced 3 time. First was a bout a year ago with one from Autozone. After asking here I bought a LUK brand from rock auto. It lased a bout 45 days and started draining the resivore. I took it out and replaced with another LUK from rock auto. It now is draining the cluth resivore again. The first 2 looked as if it was over extending and leaking around the collar. I have now had the transmission out 3 time with a fouth coming. Is there anything I need to konw? It has the correct plate between the engine and transmission. Should there be a shim or something behind the slave cylinder or something? Any help is appreciated as I hate to keep replacing slave cylinders and down time. I work nights so it will be late when i can respond. Thanks

 

[SenorNoob]

This is a new one for me. But, logically something is the wrong part. Either the slave, the clutch kit, or the flywheel. I guess if the flywheel had been resurfaced enough it could be too thin. I don't remember there being a spacer between the flywheel and crankshaft but if one were mission that could do it too.

 

[lil_Blue_Ford]

I will say that parts quality isn’t what it used to be. I’ve done the slave cylinder in my F-150 like 6 times now. I’ve lost count. That’s much less fun than doing it in a Ranger, the transmission is much bigger and heavier. Well, the original trans wasn’t too bad over a Ranger, but I upgraded the transmission in search of a stronger slave cylinder in that. Actually that I was hoping to move to an external slave but alas, only the big block trucks had those.

 

[sgtsandman]

Something isn't right for the slave to be able to over extend. Did the original do that as well? Were other things changed, like the clutch or fly wheel? Is the transmission fully seating against the plate and the engine block?

These may seem like dumb questions be we aren't there to physically see everything. We also don't know your level of knowledge and/or skill. So, all the bases need to be covered and it isn't meant to be personal or judgemental in anyway.

 

[stephenjeep]

This is a new one for me. But, logically something is the wrong part. Either the slave, the clutch kit, or the flywheel. I guess if the flywheel had been resurfaced enough it could be too thin. I don't remember there being a spacer between the flywheel and crankshaft but if one were mission that could do it too.

New flywheel from rock auto. New cluth and pressure plate from rock auto and new pilot bearing. Cluth replaced both times. Me and my brother are doing the work. He was a Deisel mechanic for several years. I know not the same but same kinda knoledge.