Gus

Bummer on the fitting. Did look like that was going to be a difficult task, think it will probably have to be custom made. Tilton's great but you loose ABS.

Gus

Ok - Have been able to fabricate the reducer needed for my 964. Took a AN 2/3 reducer and cut the threads off of the AN2 side, then rethreaded the fitting to fit the 6mm fitting in the clutch slave. The hole is small enough so there is plenty of width to do so. However, may consider doing in steel over aluminum. See pics, the AN 2/3 reducer is aluminum so has easy to make. The issue I have next is getting a brake bleed fitting that will work with the AN 3 fittings. I have a brake bleed fitting, but it does not get enough thread bit to be safe ( 2 turns ). The SS fitting does not have enough depth, so need something that will give me more thread bit.
Amso3: - What is the fitting in the lower right corner of your parts picture that has the brake bleed adapter screwed into it?? Info or ideas appreciated -

amso3

Gus

That is a brake bleeder you can buy from BAT inc. Call and talk to Eric, he is very helpful. http://www.batinc.net/mocal-central.htm

Gus

amso3 -
Thanks for the info will check into and see what Eric can do for me -
Was there any significant reason why you were running the bleed line into the engine bay other than to just be able to do standing up??
Was wondering if a higher point would allow the air ( if any) to rise to the higher point and escape from the slave. Verses doing what i am thinking about, running a hose along the transmission side and fastening it to the side plate at bottom. This would not let air rise.

amso3

In the engine bay for ease of bleed AND you want any air to rise so you can get it out. This is why brake bleeders and clutch bleeders are on top. I have seen them on the side cover but much more difficult to get air out.

Gus

amso3 - Thanks for feed back

amso3

If you do buy a Tilton make sure to buy the "high speed" bearing. The bearing that comes with Tilton is rated up to 8000 rpm. They make a bearing with the suffix "HS" (high speed) that holds up much better in the Cup car. I forget the part number.

Laurence Gibbs

An update to this. Just been going through this myself. Used the info in this thread and others to purchase an adapter for the clutch slave, on my side of the pond (UK). When i went to fit it......... It's not M6 ? Can someone confirm the bleed nipple thread size for the 996 GT3 Cup @ 2002 coz M6 it's not, on mine at least ! Don't think it's been changed out. Thread on quick inspection (to save the fliud running down my arm lol) looks to be more like M7 or greater?

Toby Pennycuff

Am curious and resurrecting this thread..... any updates on fitment for a 996 Cup (2001 variety)? Also, would a setup such as this work on an '89 Targa (street car) with the G50 transmission? In the process of pulling the Targa's engine for a rebuild, and I would really like to do two things for the clutch slave cylinder - 1) Staubli quick disconnect on clutch hydraulic line (I *HATE) trying to get at clutch slave cylinder during removal), and 2) installation of a quick bleeder for the clutch.

I can relocate to the 911 forum if needed, but the topic is germane to this forum as well. Thoughts??

toby

911racer

We are starting to work on this.

Question for the group, would you like to see this be mounted on the side of the transmission similar to how the bleed for the 997 cups mount, or are you interested in that being somewhere else.

The 997 mounts to one of the studs on the bottom side of the transmission (like one of the studs that holds the side cover on)

Also, we are buying a clutch slave for the other hydraulic transmission street cars (Ordered for the 964) to verify it is the same thread and length screw.

Thanks
Ed

Gus

I made mine long enough to reach the back of the engine compartment and mounted the bleeder near the distributors. Very easy to bleed clutch slave, no going under car. Hardest item to make was an adapter to attach stainless hose to slave cylinder. Had to custom makeSN and metric fitting - good luck.

Laurence Gibbs

I'd be interested to see what you come up with. I have not gone much further with mine, except to say.......... I tried a 964 (i think ) slave which has an M6 bleed outlet(due to the original slave having M7), only problem with that is the inlet is a different size ! So you cant connect the line from the master. Only way round that would be to change the flexi inlet pipe , which is connected to a dry break (i think) fitting at the other end !!! It's do able but you would have to build your own flexi line to match the 964 slave inlet or find an M7 adapter rather than the M6 one for the original slave. I could not find one suitable for the line i built. Hope this rambling makes sense?

Laurence Gibbs

Toby,
I would think you'd be in luck as you'd have the correct slave cylinder to work with the rest of the parts. For the 89 Targa with G50.

I made the following , loosely based on what others had done. a apprx 3ft (1m) long AN-3 clutch bleed line , consisting of :
90deg AN-3 stainless fitting, AN-3 teflon hose 1/8 ID , AN-3 straight stainless fitting, AN-3 to M6 x 1.00 mm adapter stainless, 3/8 by 24UNF bleed nipple, I also bought a 3/8 UNF male bulk head fitting.
So the AN-3 to M6 x 1.00mm adapter is wrong for my slave but fine for an m6 bleed screw equipped slave.

amso3

Ed

I think having the new bleeder higher than the slave will make it much easier to get out an air bubble.

Laurence Gibbs

Just to add. The M6 x 1.00mm to an3 adapter that may work for some, i bought from www.torques.co.uk they also have an ebay presence. UK based, but i doubt shipping would be a problem. here
https://www.ebay.co.uk/itm/3-3AN-M6x...item2564c660be

Note i found my slave (2002 MY 996 GT3 Cup) did not have M6 bleed screw. So adapter didn't work for me.