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FWIW...I had a '92 Mustang 5.0 that I put 90K miles on with the throw out in constant contact with zero problems!!:cool:
My Cobra is the same way with many miles on it over 10 years with zero problems!!:D Whoever gave the wheel bearing analogy was spot on....it ain't a problem and won't hurt a thing!!!:) |
I recently ordered a TKO from Blykins (Brent, B2 Motorsports).
Well my new clutch and trans parts have been arriving the last few days. TKO-600 with big Ram clutch, pressure plate, all that. I'm looking over the paperwork that came with the clutch. Typed in BOLD under "clutch adjustment" is this little blurb. Quote:
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OK, So I have a cable clutch so there is really no adjustment. The throw is what ever the clutch pedal is designed to give. This design has been working for Classic Roadster since the begining of CR. I agree that I don't like it. So, how do I fix it without re-locating the clutch pedal. Any ideas Ernie, Brent, Mike, ect?
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I really wish someone would post the correct answer to this one. I have almost the exact same problem. I am using the pull type set up f. Fully extended the rod coming out of the slave is 3 and 3/8 inches. Fine and dandy I can adjust the with the proper clearence and the clutch works. the problem is that after the slave is actuated the rod will only extend about 2 1/2 inches and the bearing is riding. It does this hooked to the fork or not hooked to it does not matter. Im am going insane trying to get this thing to work. Im about ready to switch to a cable set up :mad::mad:
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http://www.clubcobra.com/photopost/d..._and_slave.jpg
My ERA is an early one, #154, Pats is a late one #732. Many years apart, same slave cylinder, simple, effective, works. I've had this same basic setup, slave and spring on many different kinds of cars over the years. The biggest problem I encountered was where to hook the spring? Sometimes a hose clamp on a header tube, funky, but gets the job done. I don't know why some guys are having trouble with the spring not being able to return the fork to it's lowest position. Thats a head scratcher.... |
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Brent,
I have one, Forte tells me I shouldn't need one but better safe than sorry. To much force is required to push it back with a return spring, I can do it by hand by pushing on the fork or pulling on the rod. Am i correct in assuming that if the slave is not hooked to the fork that it should automatically return to full extension? |
Some of these slaves must have a very powerful spring inside them? An internal spring will indeed push on the fork until the throw out bearing stops that action by contacting the pressure plate fingers. Normally a modest external return spring, properly affixed, is enough to overcome both the internal spring AND force the hydraulic fluid out of the slave, up the line and back into the master cylinder. A restriction in the return of the fluid to the master cylinder, therefore, would also have to be a consideration in this scenario.
The ERA uses a BMW slave, I have had mine apart. That spring isn't very strong, it's quite mild in fact. But it's strong enough to slowly push the slave piston forward and the throw out bearing against the P.P., which is why I run a return spring and an adjustable rod to set the allowed clearance of the throw out. |
I here what you are saying and agree, mine is a pull type which i need to push the fork and bearing away from the pp when i release the clutch but it is not fully extending back to it's original positon when I release it, it's about an inch short, even when not hooked to the fork it wont fully extend to it's original position.
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got to bump this one back up.... we need to resolve this once and for all
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In case anyone is interested here is what I found out. This comes from Mike Forte himself not me so it should count for something.
The throw out bearing initial specs are clearence before start up with the slave fully extended. According to Mike the rod on the slave will not fully extend back to the full length (at least on his model) after the clutch is engaged and release. In other words if you press the clutch, the length the rod exteneds out of the slave will change. If you can reach up and move the rod farther by pushing or pulling on the fork then it is working properly. The extra air gap/movement in the slave is there to allow the fingers of the pressure plate to expand. In other word the slave and throwout will return to it's preffered or so to speak natural position. I hope I explained correctly and Mike or Brent if you are reading this please correct me if I am wrong. |
so.... does the bearing always spin?
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If I read that right, both systems are just fine.
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hahahaa this is just nuts,:confused:
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I give up!
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EDIT -- In other words, if you do have a continuous contact system, you should NOT install a fork return spring -- it would defeat the purpose of the whole design. |
They way I understand it is that yes it will spin but it will not be under pressure as the ford set up. I guess there is a difference in spinning and having it spin under 7-10 lbs of pre load. Again, this comes directly from Mike Fortes and he has forgotten more about these things than I will ever claim to know.
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