CT03911

I have read the tutorial on Renntech and don't feel it really makes sense to me.
"1.Push the clutch pedal in by hand...and keep the clutch pedal FULLY depressed.
2.Open the clutch bleeder valve until clear, bubble free brake fluid emerges (at least 30 seconds according to Porsche)...pump the pedal again very slowly by hand for a further 60 seconds. After pressing the pedal down fully about 10 to 15 times, leave the pedal in its normal position. After allowing a fill time of 90 seconds, check that no more air bubbles appear at the bleeder valve (use a collecting bottle with a transparent hose). Then close the bleeder valve. Wipe off the area and replace the rubber protective cap over the bleed screw."

Okay, so you push in the clutch and open the valve at least 30sec's, fluid comes out. Pump the clutch 15 times and release it. You do all this with the valve open? Then it says allow a fill time of 30sec's. Are we filling the brake resevoir back up at this point? Then you look for no more bubbles, does this mean open the valve again similar to a brake bleed or what?

Any clarification is appreciated. Sources for Mobil Delvac?
Dennis

KOAN

I got my Delvac from Lufteknic.
Can't help you with the clutch bleed.

CT03911

Thanks Chuck, saw them on line too.
Dennis

chasen1211

I'm pretty sure you must close the bleed valve before you pump "15 times". I usually repeat multiple times. But then again everytime I bleed my brakes I almost end up doing a flush. Haha

LVDell

Not quite sure what you mean but it sounds like the process if you don't have a power bleeder? I bled mine while using the power bleeder and it works just fine.

CT03911

I do not use the power bleeder. I do the old school way plus then me and my wife can get irritated at each other in case that hasn't already happened as I try to figure out why she pumps the brakes different EVERY TIME we do it.
In the DIY, it does not say if the process described is with a power bleeder or not.
I guess if I used my power bleeder sitting in a box in the garage, it would be easy and maybe this will force me to do it. If we are short a shouting match and I use my wife again, how would you do it by pumping? Did the article leave out a bunch of steps like let it bleed out, then close it and pump, then let it out again.
Is it that simple, just like the brakes if you pump vs use the Motive bleeder?
Thanks,
Dennis

TurboCup87

I use the Motive power bleeder all the time for the clutch. I usually use it for the brakes, but sometimes do it the old fashioned way. The bleed screw for the clutch is a long reach and totally done by feel. It's a PITA.

CT03911

So...the tutorial is not correct, right? It is missing some info. I think I get it.

With a Motive power bleed open the bleed valve and bleed out the bubbles and old stuff.

The old way is clutch the floor, open the valve and bleed. Then CLOSE the valve, pump the clutch and repeat.

Any additions or subtractions??

plima

The 996/GT3 shop manual says to pressure bleed the clutch (pages attached). It is a very simple procedure if you have a lift!

CT03911

Plima....you are the man. Nice. For using a bleeder it can't get much clearer than that. I guess I'll pull mine out of the box.

Thank you.
Dennis

enthusiast

I also use the pressure bleed method for 996 GT3 clutch hydraulics. I place my Snap On adapter right on the brake fluid resevoir and hand pump the pressure to 9 psi. I have done it on other cars successfully by manual/pedal method and I never let the pedal up with bleeder open.

If you get air in the clutch assist hydraulics, it is a hard to remove.

CT03911

They are saying if the clutch system is open be careful about slamming the pedal to the floor.
I've done it both manually and with a power bleeder. The power bleeder is by far the easier method.
I agree, it seems impossible to reach the valve unless you have a teenage girl arm, and a long one at that. Eventually you can win.

cfjan

Does anyone have a photo on where the bleeder valve is? I have used the power bleeder on brakes many times, but have not done the clutch yet. Plan to do so during this off season if I can find it / reach it!

ninerguru

Here's a picture I found on-line some time ago. It shows the slave cylinder on top of the trans. Is the the little black round thing on the near side of the tranny (driver side) protruding towards the left of the picture (front of car) in the second picture. You can see the two mounting bolts and the bleeder covered by a little black plug. You can see the hose connecting to it also...

I was able to get to it by removing the wheel and reaching with my arm. It takes a 7mm wrench. Put wrench in, attach hose and bleed using a power bleeder.

I thought I posted how to do it before...

cfjan

Cool.. thanks for the pic!!