screeching clutch

Badvoc · May 11, 2004

Just got 650 back from having a rebuild (new mains and that) and now when I let the clutch out, just as it takes up drive theres a screeching sound and it bites hard, making it judder as you try to pull away.
the engine work was done by a respected uk dealer, Id hate to think he left something out rebuilding it.

Any ideas on what it could be :?:

Taffy · May 11, 2004

give him a call badvoc he's sure to be obliging. i would say though that you have a dry bearing in or around the clutch area. why don't you lay the bike literally horizontal (fuel taps off) and let the oil fully cover the LHS of bike. it'll be a ******* to start due to the drag but it should cure it!

Taffy

Badvoc · May 11, 2004

I'll give it a go tonight before I go home, should I warm it up first.

I have tried calling him but he's out till thursday

LINEAWEAVER · May 11, 2004

Dry installation of clutch plates will cause initial shudder as will mistakenly installing two like plates together.
Hope this helps.
Best Regards,
Dale

Parsko · May 11, 2004

Is it also true that one is supposed to "soak" the clutch in oil for at least 24 hours prior to installation?
The oil being that of which is used regularly. I did this prior to my clutch installation a few months ago, and have had no problems what-so-ever.

-Parsko

Taffy · May 11, 2004

that has GOT to be for the old cork cluches surely!

i doubt if that is true of todays clutches and newer materials. when i pull a clutch apart as part of 'getting to something else' i leave it virtually as i found it. ducati clutches are notorious for being fickle so i pull them out and put them back as i find them. just check there condition. the very outer plates are good guides as to wear as they take the most gipp (grief!) and are often covered in a dark blck which means the oil isn't flushing through.

what you have to remember is that just like moving ring gaps around pistons to opposite sides: soon as you start them, they're all back to as you were!

Taffy

Badvoc · May 12, 2004

Well I tried the leanie over thing that Taffy suggested, when I pulled away its seemed to work but then a mile down the road theres some railway crossings, I had to stop, just as the train passed I found nutrual :roll: gates up, go to pull away Screeeeech judder judder Screeech judder, and were away.

If you can imagine a loose fan belt on a car, it sounds something like that.

Im pulling the clutch apart tonight, I cant live with this.

Taffy · May 12, 2004

Badvoc

sounds like the damage is already done whatever it is. it's probably going to be a bearing. might even be that the bearing is turning in it's housing which i hope it isn't.

how is your chain tension?

Taffy

tuts · May 12, 2004

Badvoc;
in addition to the proper sequencing of the clutch disks, i beleive that there are some friction plates that are different [thicker?] from the others and need to be in the proper place.
tuts

Badvoc · May 12, 2004

Taffy said:
Badvoc

sounds like the damage is already done whatever it is. it's probably going to be a bearing. might even be that the bearing is turning in it's housing which i hope it isn't.

how is your chain tension?

Taffy

Chain is slack, too slack, I thought this guy who done the work knew what he was doing, Im doing all the work myself next time.

tuts · May 12, 2004

Badvoc said:
Chain is slack, too slack, I thought this guy who done the work knew what he was doing, Im doing all the work myself next time.

badvoc;
i think 'excessive' slack is a common occurance on husabergs. it may not be the wrench's fault.
tuts

Taffy · May 12, 2004

i lean over the seat, pull the swingarm toward me, go without breath for four seconds while i let go of the swingarm and quickly grab and check the chain. anyone do it similarly! bet not.

takes me over an hour to recover now. still it used to be two but what with the oxygen mask and the zimmer frame coming free on the NHS life is so much better now!

Taffy

Badvoc · May 13, 2004

I pulled the clutch apart last night, it looked fine, no marks on the plates, all the steel plates nice and shiney, no high spots or burn marks, some of the friction plates looked a bit dry but Iv run a TZ250 that had a dry clutch and never screeched. The centre inner hub needle bearings looked ok.
Im going to give it a good oiling and put back together as I cant see anything untoward.

Badvoc · May 13, 2004

Iv had a suggestion of the pushrob rubbing in the pressure sleeve?

dave186 · May 13, 2004

my clutch has always done this when it was cold. once the bike gets warmed up and you use the clutch a couple times, it goes away.

fryguy · May 13, 2004

All of my clutches have made this sound, same as Dave. I'm not sure if oil makes a difference, I'm using AMSOIL, a synthetic. I've never had a clutch failure either.

Hope your trouble is not just that and only a noise the "animal" makes.

fryguy

Splat · May 13, 2004

My clutch screeches when it gets overheated on slow twisting uphills, especially if there is a slower rider ahead of me and I need to feather the clutch alot. As soon as I get on a section where I don't slip the clutch, it cools and the noise goes away until the next dose of abuse. As long as it grips ok, I don't worry about the noise.

Badvoc · May 13, 2004

The thing is, it only started to make the noise after the rebuild and if its was a just a nosie it wouldnt be so bad but its course's the bike to judder ans snatch when taking up the drive. How can you get a good start of the line without a properly working clutch :?

Badvoc · May 19, 2004

Just an update,

Striped down the clutch, gave everything a good coating in oil, put it back together, and she's sweet as a nut, no screeching no snatching.

Thanks for all your suggestions though.

fryguy · May 20, 2004

Happy to hear you ended your whoes with dumping more cash. Happy berging!

fryguy

screeching clutch

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