No Bleed after Tranny Rebuild

[EyExR]

I just had my tranny rebuilt and installed a new master cylinder and slave cylinder.

When I went to bleed my slave cylinder the pedal felt like crap. I just don't get any travel out of the clutch - it's acting so strange.

So, I took off my slave cylinder to compress the piston, but when I took it off the piston had already popped right out! I don't know why this would happen - it's brand new!

I tried putting the piston back in the slave cylinder and just hand compressed it a few times. Mounted it back up, and now have the same dead pedal feel. When I go to bleed my clutch and pop the bleed screw, the pedal just time and time again falls straight to the floor.

Any suggestions? Could I have a bad slave cylinder out of the box? Or maybe my clutch, fork or PP are installed incorrectly? I don't get it?


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[LuckyHenriksen]

It isn't unheard of to have bad master/slave cylinders out of the box. Might be worth snagging another one to try

[Click]

What brand cylinder did you put in?

[EyExR]

It's a FAG or ATE slave cylinder... I'll check in the morning.

I can't imagine what the problem could be. I'm losing sleep over it... :(

[FLG]

Open the MC, remove the little plastic cup, fill up to maximum and try it again. Also works to kinda squeeze the hose that runs down to the clutch master a few times to kinda get things flowing.

[EyExR]

Open MC? Don't you mean SC?

[AndrewBird]

Reverse bleed it with a pump-type oil can. Fill the oil can with clean fluid, hook it up to the bleeder and pump until no more air comes out of the reservoir on the master cylinder. Make sure not to let the oil can get low and suck air, or else you will have to start all over.

[EyExR]

I'm actually going to vacuum bleed it but that doesn't explain why the SC piston popped out...

Is it normal to be able to shift gears without the clutch pressed in, prior to a successful bleed? I can shift gears without pressing the clutch, currently.

[FLG]

Open MC? Don't you mean SC?

No, open the MC res (main one for brake and clutch) remove the little cup inside, and fill it to the top. I mean since your bleeding the cap is already off, just the way i worded it i guess....anyways just remove the little cup.

Or reverse bleed it as posted, reverse bleeding is better if you have the tools.

[EyExR]

Okay, I'll try that too I guess, thanks.

I'm assuming I'll need a new SC too, since the piston popped out. No oil poured out (oddly enough) but the boot is torn and I'm not sure if it'll still work correctly since it popped out...

[FLG]

Boot is just for dust. If the seal on the piston is good you'll be fine. Did you press the clutch with the sc not installed? That'll cause it to pop out

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[EyExR]

No, I never pressed the clutch with the SC out...

I did not bench bleed the MC or SC. Is this necessary on these cars?

[FLG]

Only the brake mc requires bench bleeding

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[EyExR]

ah crap. so now I have to remove my MC?

[FLG]

Not unless you changed it.

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