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| CorvetteBob | Clutch hydraulics | ||
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Elite Guru
 
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As some of you know, I've been preparing to deal with a clutch that won't disengage. I've been exploring the replacement of cylinders and bleeding process. But there's also the option of using a hydraulic throwout bearing and eliminating the slave cylinder. I've noticed that some of the throwouts have different lengths of extension.
So my question is this, how do I know which bearing to get? I wanna make sure it has enough range of motion to operate my clutch, but at the same time, is it possible for one to extend too far and cause damage to other components? Finally, is this even an issue or am I over thinking the whole thing? |
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Posted on: 2015/5/31 11:29
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| istter1 | Re: Clutch hydraulics | ||
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Elite Guru
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This is the one on my 87
Attach file:  keisler tko.jpg (78.74 KB) |
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Posted on: 2015/5/31 15:13
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| CorvetteBob | Re: Clutch hydraulics | ||
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Elite Guru
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Obviously, that's not a 4+3. Is that setup being used with a stock clutch/pressure plate/bell housing, etc? I'm wondering if that piece (or other) is a direct fit to the 4+3?
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Posted on: 2015/5/31 16:50
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| istter1 | Re: Clutch hydraulics | ||
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Elite Guru
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http://www.mcleodracing.com/
Contact this company they will give you all the information you need https://www.youtube.com/watch?v=jeyl93SllTQ |
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Posted on: 2015/5/31 18:20
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Only I can change my life. No one can do it for me. Carol Burnett |
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| bogus | Re: Clutch hydraulics | ||
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Grand Imperial Pooh-Bah
 
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Bob - something to consider... how many miles on your car? Is the OD working right?
The 4+3 has a life... and the problem now is finding good folks to fix the damned thing... and some parts are getting hard to find, IIRC. This is why I am a fan of the TKO 5spds. They are available as the TKO500 (500 ft-lbs of torque) or the TKO600 (600 ft-lbs) and with either .64 or .67 OD (IIRC). They are not cheap, but they are a serious - and I mean SERIOUS - upgrade. The 4+3 was a Borg Warner Super T-10 with an OD unit (essentially a 1 spd Power Glide) attached to the tail shaft. The TKO boxes are the latest in modern, internal shifting manuals. The T-10 is a leftover from 1962... it's that archaic... external shifting rods, little or no options to enhance the shift linkage... ick-poo. And it's complex. You can, with some effort, retrofit a T5 5spd into the C4. But the TKO boxes are already fit to the C4. I am not sure about hydraulic throw-out bearings for the 4+3, but if Steve gave you that info, I am sure it's right!! Depending on your goals, I would either get a new master/slave, bench bleed it and install... or consider the TKO upgrade, if you goal is the enhance the cars overall performance, like Steve has (383). The upgrades Steve has done to his has raised that car up a number of pegs... seriously... the next big upgrade for his would be retrofitting an LSx engine controller to it. That'll freak out the smog check ppl... heh heh heh... |
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Posted on: 2015/5/31 18:58
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| istter1 | Re: Clutch hydraulics | ||
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Elite Guru
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Quote:
Wow having problem with sight. When I got the TKO 600 it was to handle the 383 Stroker the Engine Dr. Built for me next step is to install LS exhaust and Andy the mind reader install LSx engine controller Attach file:  20131224_123046.jpeg (250.70 KB) IMG_20140927_184745.jpg (125.06 KB) |
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Posted on: 2015/5/31 19:17
Edited by istter1 on 2015/5/31 19:56:24 |
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Only I can change my life. No one can do it for me. Carol Burnett |
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| bogus | Re: Clutch hydraulics | ||
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Grand Imperial Pooh-Bah
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what are we looking at? The meter has been blinded by the flash...
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Posted on: 2015/5/31 19:21
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| istter1 | Re: Clutch hydraulics | ||
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Elite Guru
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the super ram
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Posted on: 2015/5/31 19:48
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Only I can change my life. No one can do it for me. Carol Burnett |
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| istter1 | Re: Clutch hydraulics | ||
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Elite Guru
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the super ram
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Posted on: 2015/5/31 19:57
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Only I can change my life. No one can do it for me. Carol Burnett |
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| CorvetteBob | Re: Clutch hydraulics | ||
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Elite Guru
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I know everything you guys are saying is right. There's just no room in the budget. I'm prolly gonna hafta rob my 401k to put a new a/c system in the Pallacial double wide this year.
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Posted on: 2015/6/1 0:15
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Beauty, it’s in the eye of the beer holder |
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| CorvetteBob | Re: Clutch hydraulics | ||
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Elite Guru
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[quote]
bogus wrote: Bob - something to consider... how many miles on your car? Is the OD working right? Depending on your goals, I would either get a new master/slave, bench bleed it and install... [quote] The OD was working the last time I tried it. That was a while back, and the last time the clutch would disengage. Maybe you're right, maybe the best thing right now is to just pony up for new cylinders, bleed 'em, and put 'em in. |
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Posted on: 2015/6/1 1:28
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Beauty, it’s in the eye of the beer holder |
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| CentralCoaster | Re: Clutch hydraulics | ||
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Senior Guru
 
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Yeah, you don't need it.
I was looking into hydraulic bearings only as an alternative to the ZF6 pull clutch and crappy bearing design. The stock 4+3 hydraulics are foolproof, just get some working cylinders in there. If getting all new parts, just bench bleed the entire assembly, hose and all, and then install it on the car. |
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Posted on: 2015/6/1 2:55
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| CorvetteBob | Re: Clutch hydraulics | ||
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Elite Guru
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To give closure on this...
I went to autozone and got a slave cylinder. Before installing, I checked the screw size for the heat shield and found the OEM screw was 1/4-20 and the new took a 6 mm screw. Nice to know before you get under the car. Also, and this is the big one, I have some speed bleeders from help here at the double-wide and low and behold, the bleeder for the clutch slave cylinder and the brake calipers are the same! HELP part number 12706.I also went back to the " Zone" and got part number 66223 "HELP" copper washers for the hyd line to the slave. I then bled the unit according to The FSM and wowie-zowie! It works! |
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Posted on: 2015/6/13 20:29
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Beauty, it’s in the eye of the beer holder |
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