So I caved in (mostly due to lack of funds) and purchased the ACT 6 puck sprung clutch set. Just was looking some things over while I wait for the new flywheel to show up and I noticed this.
[IMG][/IMG]

Does anyone know why some of the puck fingers are longer then others? Notice the gap on 2 of them is closer to the edge of the flywheel. Yes this is with the aligmnent tool in place. There are 3 fingers that are short like this.
Also I'm looking at the disk friction material and my god, out of all they other clutches I have ever owned this has the absolute least amount of material by far before it rivits would contact the flywheel. Hard to see in the pic but the penny is a lot thicker then the amount of material on the disk before rivits would hit. I can't see this disk lasting long at all. WTF is up with that ACT?
[IMG][/IMG]

 

thats probably why the 6 puck has alot of vibration in the clutch pedal. i never noticed this when i put mine in but, now that you bring this up im starting to think this is why.

 

I would guess that the different lengths are to spread the load out over more area of the flywheel. I wouldn't worry about the friction material as the flywheel and pressure plate face will more that likely wear out first, seen it a few times before with the puck style clutches, pull them apart after some hard miles and the flywheel and pressure plate are grooved out...friction material looks fine.

 

Send a PM to ACTman (Dirk, president of ACT). I'm guessing he'd be happy to comment on this.

https://www.evolutionm.net/forums/me...63-actman.html

 

My ears must have been ringing. Yes, three of the pucks are inward farther than the other three in order to distribute the heat/load over a larger surface of the flywheel and pressure plate. There is no out-of-balance caused by this so vibration is not a factor. The flywheel that you have put that on sure looks like it got hot. Those flywheels are real thin behind the disc unlike the ACT, so you may want to lay a straight edge on the surface to see how flat it is before installing. If it is not flat within maybe .010" then get it surfaced first. As far as the amount of allowable wear on the disc, there only needs to be about 2mm (.080") total between the two sides of the disc.

 

That's my old flywheel. I have a resurfaced ACT prolite going in there.

 

All I can say is I'm am totally happy with mine! It feels like a "stiff stock" clutch to me. The only time it gives me any fits is in reverse, lots of chatter. Other then that this clutch has been a dream and for the price its hard to beat.