What kind of radius faced throw out bearing do
you use with your quartermaster clutch?
I'm using a quartermaster clutch in a swap I'm
doing with a 4sp. I have everything resolved
except getting a t. o. bearing.

Orville

Mine uses the stock '88 bearing, it only requires a very slight amount of metal removal, which I can't describe to you at this time, but my mechanics have never complained at all about the minor modication and it no charge. Having new disks put in within the next week, so I can ask them, as I always have a new bearing put in with each disk change.

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Click to Listen!

Tom and I are going about this different ways, he's pretty much using all stock Fiero parts (except for a minor mod to his 88 GETRAG T/O bearing) I'm using QM's hydraulic T/O bearing, which requires a new master cyl too.
(so I won't be much help, lol!)

I do know one thing, the T/O bearings for the 4-sp and the GETRAG *DO DIFFER*...

I'm not sure by how much however.

Tom will likely post pics of his T/O bearing soon (if nothing else, just keep the old one Tom, get to it later

Best!
Ben

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Ben Cannon
88 Formula, T-top, Metalic Red. (2:13.138 at Sears Point) "Every Man Dies, not every man really Lives"
88 Formula, Northstar, Silver, In-Progreess. -Mel Gibson, "Braveheart"

Here is a photo of the qm/howe concentric internal slave cylinder I would like to use.
It's the only one I could find that has the
correct od at the base (< 2 5/16") and the
correct setup heigt (<2"). The problem is that
it comes only with a flat faced t. o. with an
id of 1 3/4" while the only radius faced bearings I can find have id's that are smaller.
If I can't find a t. o. I can adapt, I'll have
to go with an external slave and use California Kid's method of a modified 88 t. o.

Thanks for the reponse.

Orville

Regarding the minor metal removal on the release bearing, all it is, is removing the two small stamped tabs on the shell, which is considered normal practice (according to the mechanic, as they are not required).

Tom, please post pics! )

Say Orville, that looks like a great TO bearing! What's it's MC size requirement?

Perhaps we could 'radius' it's bearing ourselves?

You're right, it's a LOT closer than the QM!

Do you have a source for these?!

Best!
Ben.

quote Originally posted by Orville: Here is a photo of the qm/howe concentric internal slave cylinder I would like to use. It's the only one I could find that has the correct od at the base (< 2 5/16") and the correct setup heigt (<2"). The problem is that it comes only with a flat faced t. o. with an id of 1 3/4" while the only radius faced bearings I can find have id's that are smaller. If I can't find a t. o. I can adapt, I'll have to go with an external slave and use California Kid's method of a modified 88 t. o. Thanks for the reponse. Orville

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Ben Cannon
88 Formula, T-top, Metalic Red. (2:13.138 at Sears Point) "Every Man Dies, not every man really Lives"
88 Formula, Northstar, Silver, In-Progreess. -Mel Gibson, "Braveheart"

quote Originally posted by artherd: Tom, please post pics! )

Didn't have camera at the time, but there are two small ears about 1/8" by 1/8" on the back side of bearing stamped steel case. If it were to assembly correctly, which mechanic say most don't, the fork would pull the bearing back away from the clutch, but in reality the pressure plate diaphram is what pushes the bearing back anyway, so they are not required. Making sense????????? One or both can be removed.

quote Originally posted by California Kid: [QUOTE]Originally posted by artherd: [b]Tom, please post pics! )

Didn't have camera at the time, but there are two small ears about 1/8" by 1/8" on the back side of bearing stamped steel case. If it were to assembly correctly, which mechanic say most don't, the fork would pull the bearing back away from the clutch, but in reality the pressure plate diaphram is what pushes the bearing back anyway, so they are not required. Making sense????????? One or both can be removed.

[/B][/QUOTE]

Shoot I read this now. I just put a new TO bearing in my getrag 5 spd today. I saw the ears. And made sure that they were positioned correctly on the forks. Man were they a b!tch to get lined up properly!!! Knowing that I could have trimmed them off I could have saved some time.

I thought that the diaphragm pushed the TO bearing back but I didnt' want to mess with anything cause I figured those GM guys knew what they were doing.

Oh yes can you guys please read my other post on the getrag shift forks here in the Tech? Thanks

Oh yea i have a digital cam that I can take some pics of my old TO bearing so you can see the tangs that Cali kid is talking about. Will take a few days though. Let me know if you want them.

[This message has been edited by Shaun41178 (edited 07-26-2002).]

I found a bearing that was adaptable. It had a
1 5/8" id center that the machine shop ground
out to 1 3/4". Here's a photo. Note the bracket bolted to the lower fork bushing hole.

The slave cylinder is qm part # 7201000. The
bearing is tilton part # 63-003.

Ben, about the master cyl size, here are the
qm specs.

Will it work? I'll know more in a few weeks.

Orville

OK, how do you bleed it once the clutch is in? I've seen these before and always wondered about it but never had to work on one so didn't have any reason to find out.

John Stricker

quote Originally posted by Orville: I found a bearing that was adaptable. It had a 1 5/8" id center that the machine shop ground out to 1 3/4". Here's a photo. Note the bracket bolted to the lower fork bushing hole. The slave cylinder is qm part # 7201000. The bearing is tilton part # 63-003. Ben, about the master cyl size, here are the qm specs. Will it work? I'll know more in a few weeks. Orville

Here's a few pics of the GETRAG 5spd case and clutch release bearing (greased and ready to go in.

John, The slave has 2 ports, one is fluid in
and the other is the bleeder, which is which
doesn't matter. To bleed just back out the
bleeder screw.

Tom, that bearing looks like it has a radius
face. Does it? It's the stock 88 bearing? If it
does and it is and has a large enough id it's
something Ben and I could use.

Orville

It's a stock '88 Bearing for the 5spd Getrag, no modifications.

I don't really know what you mean about a radius face, it's machined flat except for 'face off' radius at the bearing ID, as you can see in photo.

Tom, "radius" refers to the convex, arc shaped
face of the t. o. According to the techs at qm
and tilton, this shape is important to the
correct action of the qm clutches. But you've
been using a stock 88 t. o. successfully so
maybe it doesn't make much difference.

Here's a photo of a flat faced t. o. next to
the qm radius faced one.

Orville

Thanks Orville, had a feeling that's what he meant, but I don't guess on Technical stuff. Flat bearing has worked fine with the QM setup, pressure plate fingers only show a very minor amount of wear just back from the tips, for 30,000 miles of use. I will replace the pressure plate next time it needs new clutch disks.

[This message has been edited by California Kid (edited 07-29-2002).]

Tom, this may be why you found it benneficial to 'shave' some off your titanium housing ring?

Looks good for 30kmiles, if I get 40k out of these pressure plates, I will be extactic.

Oraville, I think I'm going to use exactly that Tilton part, machined out. See what happens.

Best!
Ben,

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Ben Cannon
88 Formula, T-top, Metalic Red. (2:13.138 at Sears Point) "Every Man Dies, not every man really Lives"
88 Formula, Northstar, Silver, In-Progreess. -Mel Gibson, "Braveheart"

BUMP.

Looks like QM sent me the wrong bearing, it's much larger and different looking than the one in your pics Orville.

Can you check that part number for me? It looks like that's their "Race" TO bearing, but your scanned manual says it's the 'street' one (which I aparently have. not even close to fitting.)

Best!
Ben.

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Ben Cannon
88 Formula, T-top, Metalic Red. (2:13.138 at Sears Point) "Every Man Dies, not every man really Lives"
88 Formula, Northstar, Silver, In-Progreess. -Mel Gibson, "Braveheart"

Orville, I want to see some pics your starter setup.

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"Its a Fiero thing... Heck, even I don't understand!"

Timothy E. Smith
1986 SE V6
1984 Coupe
1996 Ford Probe GT
1999 Chevrolet Silverado Z71
1975 Chevrolet ElCamino SS

Ben, The T. O. is Tilton part # 63-003. It's a
stock BMW bearing. It has an ID Of 1 5/8" which
can be ground out to the required 1 3/4". The
machine shop that did mine made a jig to hold it
in the lathe. Caution them to go slowly so as
not to overheat the bearing.

Orville

Hey Orville, thanks for the reply. Oops, I screwed up my termoniology a bit!

THIS is what isn't quite right from QM:

quote The slave cylinder is qm part # 7201000. The bearing is tilton part # 63-003. Orville

The actual QM TOB entirely is wrong (not what's shown in the pic at all, what I got was about 3 times that size :P, can you double-check that part number for me?)

I've also got to get them to redesign my billet button assy, they made it too tall.

Moving forward, slowly! )

Best!
Ben.

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Ben Cannon
88 Formula, T-top, Metalic Red. (2:13.138 at Sears Point) "Every Man Dies, not every man really Lives"
88 Formula, Northstar, Silver, In-Progreess. -Mel Gibson, "Braveheart"

[This message has been edited by artherd (edited 09-13-2002).]

Ben, here's a link to site selling the Howe
slave, which is the same as mine, only cheaper. http://store.summitracing.com/default.asp?target=%2Fsection%2Easp%3Fd%3D14%26s%3D46

Thanks Oville!

Once I get this squared away, I'll post about the whole package for the GETRAG 5-speeds.

Best!
Ben

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Ben Cannon
88 Formula, T-top, Metalic Red. (2:13.138 at Sears Point) "Every Man Dies, not every man really Lives"
88 Formula, Northstar, Silver, In-Progreess. -Mel Gibson, "Braveheart"

Ben, here's another link to a site with the
slave cylinder qm part # 720100. Guess I put in
an extra zero. http://stockcarproducts.com/clutch4.htm
This slave has a retracted height of about
1 3/4" from bottom of the cylinder to the foce
of the t. o. The correct distance from the
back of the trans to the face of the clutch
fingers (setup height) is about 2". That is,
about 1/4 clearance between retracted t. o.
bearing face and the clutch fingers.

I'll post a pic of the one QM sent me, it's huge, about 3" tall :P

You sure you don't have part# 710100? ;P

Best!
Ben.

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Ben Cannon
88 Formula, T-top, Metalic Red. (2:13.138 at Sears Point) "Every Man Dies, not every man really Lives"
88 Formula, Northstar, Silver, In-Progreess. -Mel Gibson, "Braveheart"