CCT's done but the rattle is still there; Ideas please?

[JIMMYJAMES]

Noises haven't gone away I am going to take it to a mechanic tomorrow and get him to give it a listen, failing that i will drop the sump and clutch housing to have a poke around. I will see what he says about the chasing thing you mentioned then. Watch this space!

[sirch345]

After listening to your video I'd be more inclined to strip and inspect the clutch next. Tony.mon had the main bearing break up on his bike so could be worth checking that while you're there, also check the oil pump chain and sprockets which are driven from the same main shaft as the clutch and check other components driven from the clutch too.

Chris.

[JIMMYJAMES]

After listening to your video I'd be more inclined to strip and inspect the clutch next. Tony.mon had the main bearing break up on his bike so could be worth checking that while you're there, also check the oil pump chain and sprockets which are driven from the same main shaft as the clutch and check other components driven from the clutch too.

Chris.

Thats probably what i will do. I spent a good few hours searching on the Superhawk forum and found one usefull little pearl of wisdom. Apparently people have been known to remove the gear quitening damper to fee some BHP but costs a rattle. Here is the thread

http://superhawkforum.com/forums/showth ... sel+engine

And this one.

http://superhawkforum.com/forums/showth ... utch+noise

[JIMMYJAMES]

Took it to a local expert guru on bikes and he recons there is movement on the clutch basket possibly wear on it and its nothing to worry about. I will still take the thing apart at some point to dig a little deeper.

[tony.mon]

Replacing the clutch centre bearing in the basket isn't a big deal, the only slightly tricky thing is loosening the clutch centre nut.
The bearing (from memory) isn't too bad in terms of price.
You might just get away with replacing the top hat style bit that runs on the shaft.

The bearing that failed on my engine #1 was the one in the crankcases behind the clutch. Now that's a biggie, complete engine strip.

I have some spare clutches, so if you need bits let me have a PM.

[JIMMYJAMES]

Replacing the clutch centre bearing in the basket isn't a big deal, the only slightly tricky thing is loosening the clutch centre nut.
The bearing (from memory) isn't too bad in terms of price.
You might just get away with replacing the top hat style bit that runs on the shaft.

The bearing that failed on my engine #1 was the one in the crankcases behind the clutch. Now that's a biggie, complete engine strip.

I have some spare clutches, so if you need bits let me have a PM.

Thanks bud i will bear it in mind. The mechanic said if its working well and not slipping to monitor the noise for any changes and just to keep using it. Seeing as i have only just got the bike thats what i'm going to do, at least untill the weather turns really nasty.

[gilson]

The worst possible scenario is that it's perceived as a Ducati

[JIMMYJAMES]

I took the bike to another bike repairers today and they spotted some raised bits on the clutch cover forcing the cover outwards where the clutch basket has obviously touched it which i hadn't noticed. could this be a failed bearing somewhere? The transmission is typically clunky between 1st and 2nd but its otherwise silky smooth with no slipping. I dont think the clutch is touching the cover as there is no vibration there but something is definatly amiss, problem now is its my only form of transport so i have no choice but to keep running it for a bit before i can strip it out. Nightmare!!!!!!!!

[Stratman]

Took it to a local expert guru on bikes and he recons there is movement on the clutch basket possibly wear on it and its nothing to worry about. I will still take the thing apart at some point to dig a little deeper.

Who's the expert then - I'm in Norwich too.

[JIMMYJAMES]

Took it to a local expert guru on bikes and he recons there is movement on the clutch basket possibly wear on it and its nothing to worry about. I will still take the thing apart at some point to dig a little deeper.

Who's the expert then - I'm in Norwich too.

Chris Sadd on the Sweetbriar Industrial Estate. He has always been really helpfull and accurate too.

[JIMMYJAMES]

Got it all stripped out and got as far as removing the clutch plates and it all turns freely and is nice and clean with no signs of damage. There has been a problem with the clutch in the past which has scratched the inside of the clutch cover but its al been repaired with new bearings. The only rattle area i can see is there is a lot of slack on the oil pump chain to the extent when you wiggle the free spinning clutch centre it rattles a lot and is very audable. I know the water pump chain is meant to have a fair bit of slack but Could this be the problem and how much slack should the oil pump chain have?

Thanks again chaps!

[JIMMYJAMES]

I've come to the conclusion that my rattles are just the way it is meant to be. I had a discussion with a Honda mechanic who has heard the bike running and he talked me through the possibles and areas to check all of which drew a blank. At least i have it all clear in my own head and i dont need to be paranoid anymore, i just need noisyer exhausts to drown it out

[JIMMYJAMES]

JJ, i have had 3 storms, 2 were as smooth as you could hope for, 1 rattled like fook, it still ran fine though, think its just the way it goes. As you said, you have to accept it or get rid. I think the loud pipes are the way to go

I have one more thing to try before i put it all back together and forget it. The Sub gear and vibration damper doesn't look right and it looks like it might have been removed and installed incorrectly as one of the springs isn't seated correctly. When i turn the sub gear agains the spring pressure it moves with no resistance and holds its position when i would have thought the springs should take up the slack otherwise whats the point in it being there. This is my last option before i reassemble and forget it, i figure what the hell i have got to wait for my new gasget so its got to be worth a look while its in bits.

[Stratman]

If you want to pop it round to mine to compare noises then send me a PM

[tony.mon]

I think you may be on to something with the sub gear, if you mean the spring-loaded one which sits alongside the front primary drive gear.

It's a bit of a bugger to get together, as I recall, you need the clutch basket completely off to get it to sit right.

Then you load it so that it's tensioned one tooth round and it sort of "grips" the teeth on the clutch basket gear. Haynes has a section on it which is easy to follow.

If it's in any way loose it'll rattle for sure, as the crank speeds up and slows down each revolution.

But to get the clutch centre off you need to be able to lock the primary drive gears, and it's pretty tight. A big bit of scaffold pipe comes in handy, over a good 1/2 drive socket. And in gear, with someone standing on the back brake.

However, be aware that the clutch centre nut is staked against the shaft, and you'll probably need a new one. So order one in b4 u start.

But could you ride it as is?
Probably, it'll take a bloody long time for the primary drive gears to rattle together enough to produce any wear, IMO.

But would I put up with it?
No, I'd just strip and repair- if you have (or can make) a clutch centre tool [some old clutch plates bolted together works ok] then it's not too long a job.
Longest bit is taking off the fairing, draining coolant and getting clutch cover off. Oh, and you might want to order in a new clutch cover gasket, too, as they often break when removing them.


Good luck!