Clutch noise? - Page 5

 



There is nothing wrong with your clutch. Said it when you first started
bleating; saying it again now.


--
BMW K1100LT  Ducati 750SS  Honda CB400F  Triumph Street Triple
Suzuki TS250ER GN250  Damn, back to six bikes!
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com

 

On Fri, 20 Nov 2009 07:16:00 +0000, totallydeadmailbox@yahoo.co.uk (The Older
Gentleman)
wrote:


I'm actually inclined to agree with you.

But I'm damned if I have a clue why folks here are failing to suggest
plausible explanations for the conditions I've described.

And there's been some confusion about the precise conditions, so I
here repeat both for clarity:

1.):
    Engine warm, accelerate up hill, maybe 35 mph, in 3rd gear. Reach
    top, dis-engage clutch, coast down hill in 3rd. with clutch lever
    actuated. When I hunker down, I can hear a sort-of growling/grinding
    noise.
    
    This is "normal operating noise" for a bike with a wet clutch?

2.):
    A 2nd scenario. I go out the garage, start the bike cold, hold the
    clutch lever in whilst in neutral gear, hear a very similar sort-of
    growling/grinding noise. By the time I roll the bike out the garage
    (maybe 15 seconds), the noise stops. I always try to wait for this
    before shifting to 1st gear (less clunk).
    
    Normal clutch noise?

In each case, I'm hearing the noise with the clutch lever fully held
in (clutch disengaged). The other day, when I replicated 2.), it
took only about 5 seconds before the noise ceased. If I wait another
maybe 10 seconds, it won't clunk shifting into 1st.


Willie

 

Willie The Wimp wrote:


It isn't unusual to get noises like that. Try snicking neutral. Is the noise
the same?. If so, its final drive. Try 4th. Different noise?.

It may be as simple as the chain/sprockets alignment or tension.



Yeah, my Bandit does similar.

<fx:wavy lines of time>

Many many years ago, during a prolonged period of sub zero temperatures, I
left my girlfriends and started my bike up with it on its centrestand
whilst I had a cigarrete. The rear wheel was merrily rotating away when an
elderly gentleman sidled up. 'Oh shit, here goes another 'when I were a
lad' type monologue. 'Nice to see you take the time to warm the oil up.
When the back wheel stops turning, your oil is warm enough for you to
ride.'
Cold oil causes a lot of drag. Cold clutch plates stick to the metal plates,
effectively only giving partial disengagement, hence the clunk. Let
everything warm up a bit before setting off.

</fx>

The clutch is riding on its release bearing. Some of these are a bit noisy.


Someone up there said about magnetic sump plugs and cutting the filter.
Can't argue with that. You will get some very fine metal particles adhering
to the magnet. Almost a powder. Nowt to worry about. In your oil filter,
you may find some clutch material. Again, nowt to worry about.

Bronze coloured metal not good. Shavings not good. If it really bothers you,
get someone else to ride it whose opinion you hold in high regard. If the
clutch disengages OK, rides in its friction zone OK and doesn't slip with
the lever all the way out and all the gears engage smoothly when the engine
is warm and the oil fresh, just wear earplugs.

 

wrote:


When engine parts don't get enough oil, they start wearing out. Once
the wear gets through the hardened outer layers of steel parts, they
start wearing really quick.

But we still don't know whether the noise you described has to do with
the
chain and sprockets, or if you still have the noise when the
motorcycle is not in motion.

An old mechanic's trick is to listen to various areas of the engine by
touching it with the tip of a long screwdriver and then putting your
temple against the plastic handle.

If you don't happen to own a large screwdriver like that, a piece of
hardwood dowel
about a foot long works well.

 

wrote:


Uh-huh.


You missed part of it:

I've often used a long socket extension.