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Join Date: Jul 2009
Location: Norway
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Can my slave cylinder be saved?

I am reinstalling the engine in the car and today I went to install the slave cylinder. It was extended quite far and I couldn't make the bolts enter the threads in the bell-housing.

I thought I would just empty it and depress it, as I'm flushing the system anyways. Unscrewed the bleeder valve all the way out, not a drop of fluid comes out. I then unscrew the hydraulic line to the slave and am greeted by a stream of fluid.

The cylinder is softer now, but still hard to depress. Is this normal or should this cylinder be serviced?
Also, when I removed the slave cylinder from the bell-housing 6 months ago the plunger shaft simply fell out.
I thought this was normal, but is it?

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1990 944 T: 100 000 km/63K miles,
1997 986 2.5L: 95 000 km/60K miles,
Living in the trackless land of plenty!

Last edited by bebbetufs; 06-22-2010 at 01:42 PM..
Old 06-22-2010, 01:34 PM
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there's a spring inside, which is why there's still tension when you try to push it in. you have to compress it a little to get the bolts started anyway.
Old 06-22-2010, 01:43 PM
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Exactly how much force is needed? It was rock solid and didn't budge when me and my friend tried to force it on to the bell-housing.
__________________
1990 944 T: 100 000 km/63K miles,
1997 986 2.5L: 95 000 km/60K miles,
Living in the trackless land of plenty!
Old 06-22-2010, 02:14 PM
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Join Date: Jul 2001
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If you extended the piston in the slave all the way out, you will/may have inside seal damage.
In the states, there is a rebuild kit for about $22 for the slave. Many vendors and NAPA type have them.

John
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1988 924S, 85,750K ..+ 1987 924S, 154K DD (+15K est. bad odo)
Old 06-22-2010, 02:55 PM
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Thanks John.
How far out is too far then? Should I be able to press the piston back in by pressing with my finger?
__________________
1990 944 T: 100 000 km/63K miles,
1997 986 2.5L: 95 000 km/60K miles,
Living in the trackless land of plenty!
Old 06-22-2010, 10:41 PM
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Never mind.
After a thorough cleaning it is good to go

__________________
1990 944 T: 100 000 km/63K miles,
1997 986 2.5L: 95 000 km/60K miles,
Living in the trackless land of plenty!
Old 06-23-2010, 03:37 AM
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