Removing Slave Cylinder from 4kq

[Huw Powell]

> I'm replacing the clutch master and slave cylinders on my 86' 4kq, but I 
> am doing it with the engine and transmission in the car.  After much 
> hammering I have been able to remove the pin that supposibly holds the 
> slave clyinder in place, but it is still stuck in the bell housing.  I 
> have tried pounding and prying on it but have been unsuccessful.  Is 
> there some mystery bolt holding in there that the bently doesn't 
> mention, or is it just 19 years of grime and corrosion?

On an 87.5 coupe I acquired that required a transmission swap, removing 
the old slave from the donor tranny was a complete PITA.  Granted, it 
had spent some time (read: years) lying out in the field, but that's not 
much worse than being under a car on salty winter roads year after year.

With that tranny on the shop floor, we had the pin out and a 1/2" 
extension shoved into the (destroyed) slave cylinder and we were 
whacking it with a 3 pound sledgehammer in the end.  I think that 
eventually got it out, but required much more force and effort than 
could ever be applied from outside the transmission, installed in the car.

I think your best bet is as another lister suggested - soaking with lots 
of penetrant, over several days.  I'm not sure if it would do much good, 
but a bit of heat could help loosen the old corrosion bond, too.  Just 
be careful of bits you don't want to hurt that are no heat-proof.

As far as bleeding goes (hoping you get that far soon!), a pressure 
bleeder works *very* well; the shadetree alternative I have read here is 
to run a hose from the nearby brake cylinder (LF) to the slave bleeder, 
and use the brake pedal to push fluid backwards through the 
slave-line-master.  Close bleeder screws while letting up on the brake 
pedal.

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/