Clutch Disk center loose

[LiveFreeOrDieTryn2B]

OK guys have another possible issue.The center part of my clutch disk it wobbles no damage.Should I replace it?

 

[LiveFreeOrDieTryn2B]

It's not the rivets it's play in the springs.Is that exceptable to have play like that it allows the center to move?

 

[gimpyrobb]

Depends on how much. Minor movement is ok, but a lot of slop isn't. Im sure there has to be a spec somewhere in the TM.

 

[rustystud]

There should be no movement with the center hub. If there is then the springs are bad or something else has come loose. Either way it is not good.

 

[LiveFreeOrDieTryn2B]

You can see the springs move freely when you move it back and forth.I'm not sure how much maybe a 1/4" I'm guessing but it was enough to concern me.If it's too much I'll have to get a new clutch disk.

 

[rustystud]

You can see the springs move freely when you move it back and forth.I'm not sure how much maybe a 1/4" I'm guessing but it was enough to concern me.If it's too much I'll have to get a new clutch disk.

With the hub moving that much your clutch will "chatter" when engaged, and possibly cause damage. The purpose of those springs is to help absorb the initial shock of apply. If the springs are weak or loose they can potentially come out of the hub under engagement. Not good for the clutch assembly ! I've seen this happen several times. Usually what had happened was the customer was trying to get by on the cheap and decided to reuse his clutch disc when replacing the clutch plate. Their excuse was that there was still plenty of material left. What they did not know was the hub springs were weak due to use and heat. So putting a weak disc back together with a resurfaced flywheel and new clutch plate caused so much strain on those weak springs they literally burst out of their holders. Those springs flying around can cause a lot of damage.
This is one area that you must use a resurfaced or new flywheel, a new or rebuilt clutch disc and a new or rebuilt clutch plate. Anything else and your just asking for trouble. It's like installing new cylinder liners and new pistons and then "reusing" the piston rings !

 

[LiveFreeOrDieTryn2B]

I replaced all this and had the flywheel done a few years ago theres not a lot of miles on it the fly wheel and pressure plate are still in great shape but what if I just go with the disc that doesn't have the spings less to fail.I had oil causing it to slip but always sprayed it out with brake cleaner I knew the disc might have to be changed but everything else is in great shape I though I might have had some grooving but didnt.

 

[LiveFreeOrDieTryn2B]

I also wanted to note the pads on the clutch disc still looking almost new hardly no wear at all.I want to say it has maybe a couple of thousand miles on it if that.

 

[rustystud]

I'll just say that anytime you have parts that have broken in together, then you replace just one you risk having issues. Having said that I've seen guys get away with just installing a new disc on a flywheel wheel and pressure plate that were in good shape and have decent results. Myself I always replace everything as I don't want to have to go back in and "redo" the whole job again. That's just me. It's very similar to just replacing the front brake pads without turning the rotors. You think the rotors look to be in great shape, but afterwards you cannot figure out why the brakes seem to vibrate or pulse when applying them.

 

[LiveFreeOrDieTryn2B]

I understand that completely I am just gonna do the disk for now. I was gonna get the disk without the springs.I an kind of curious as to what the difference between the two are.I got the tranny all done and ready to go back in.I have some vids I have to edit and post aswell.I got the everything else almost done.

 

[LiveFreeOrDieTryn2B]

I really got to looking at the disc after hours of reading and the play is about 1/8" and looking at it there's no way after looking at the way it's designed it wouldn't have play in it.Its not flopping or way wobbly no excessive wear where the springs ride or on the rivets or pads I'm gonna run it I may try to press the rivets slightly I ll get a video made.

 

[73m819]

You asked for thought on "play in the center hub springs" you got a answer from someone who does this for a living for MANY years so WHY argue about the answer, it is just a WASTE of everybodies time.

 

[LiveFreeOrDieTryn2B]

Yes I know Rusty knows his stuff but the play was way less than I thought I guessed at how much it had until I got to really looking at it this morning.

 

[LiveFreeOrDieTryn2B]

Here is a YouTube link of a video I just took displaying the disc. Take a look at let me know what you guys think. Thanks in advance. https://youtu.be/VBmNDoqz22k

 

[Welder1]

Don't argue with someone that knows their stuff. Rusty is correct there should be no movement on the hub with your hand. Any loose movement will hammer on it and can quickly destroy itself. New disks are less than $100 so just replace it. You can do it right or do it over your choice.

 

[rustystud]

Here is a YouTube link of a video I just took displaying the disc. Take a look at let me know what you guys think. Thanks in advance. https://youtu.be/VBmNDoqz22k

I looked at your video. The clutch hub "friction washer" is shot. It should never have any lateral play. That much play can cause a sticky clutch or no release problem. Remember there is only about 1.5mm clearance between the flywheel and clutch disc. The cause of this kind of wear is usually due to "dropping" the clutch or "clutch dumping", instead of a smooth release of the clutch. When you drop the clutch you put tremendous force on the clutch disc which it has a hard time absorbing. In time the center of the hub usually cracks apart. I can tell your clutch disc was an aftermarket rebuild. They probably rebuilt it improperly.

 

[LiveFreeOrDieTryn2B]

Wow that sucks Rusty I ll replace it I'll never buy a rebuilt one again if I can I had no idea .I bought from Kublos in PA.I always respect your opinion Rusty I will use videos from now on to explain these kinds of issues.I wanted to know is the one piece clutch ok to use?

 

[LiveFreeOrDieTryn2B]

Ok guys called Ken at Kublos he said to contact the manufacturer,was very helpful.I called them they are going to look at my video and call me back later this morning.I ll update you all with there findings ASAP.I am going with what Rusty suspects that it's a manufacturing defect.

 

[LiveFreeOrDieTryn2B]

Ok guys got a call back from the manufacturer they said this is acceptable movement they had 3 people look at the video including two of there engineer's.The lateral movement is part of normal wear and the clutch disc is ok to reuse.

 

[rustystud]

Ok guys got a call back from the manufacturer they said this is acceptable movement they had 3 people look at the video including two of there engineer's.The lateral movement is part of normal wear and the clutch disc is ok to reuse.

Well if the "rebuilder" says they built a good product and that wear is totally acceptable, then it is good to go then and there is no need for any more discussion.
Though it would be nice to hear from the actual manufacturer of the original clutch disc not the "rebuilder" . Just saying .