Do "they all do that sir"?

[Gonzo]

When in stop-start traffic in first gear and pulling the clutch in and out, much clunking can be heard from the oily bits. I don't know whether it comes from the gearbox, clutch or the drive shaft.

Apart from a judder when taking off in first (separate issue I think) everything seems to work OK and I don't have the side-to-side play in the back wheel.

Is the clunking normal and merely the engagement and dis-engagement of the clutch?

Cheers

G

 

[Gipsy]

Don't know what actually causes the noise, but there have been numerous threads about this in the past. I'm fairly certain its a case of they all do this. At least thats what I was told when the dealership checked it out.

 

[Deleted account 211025001]

Yes sir, they all do that

It's the slack/back lash in the transmision.

If you think the BM's bad you should ride a Guzzi

Andres

 

[plasmatron]

"they all do that"... it's true, but it can be significantly reduced by removing excess fluid from the clutch reservoir... As the clutch wears the level of fluid in the left handlebar reservoir increases... Dealers are supposed to check and remove excess fluid at every inspection, but often don't... like mine... you do need to open it up to get an accurate idea of where the level is, which technically this requires a little BMW tool, but you can get it open without one...

worth checking on, since if it's allowed to get too high, the clunking gets worse and if left for too long it can bugger the clutch... FWIW this info was passed on to me by the head of Motorrad Taiwan who personally did the 6K sevice on my bike...

 

[Mouse]

Interesting ... does the excess fluid in the reservoir stop the clutch from engaging completely, or something like that?

 

[Shep]

Interesting ... does the excess fluid in the reservoir stop the clutch from engaging completely, or something like that?

I would guess it must stop it disengaging, that would cause clutch drag.

Dunno why though, but velly interlesting anyway!

Shep

 

[Mouse]

But (and sorry for going off on a tangent here) - when you disengage (ie pull in) the clutch, the fluid level in the reservoir drops, due to fluid being pumped into the slave cylinder. When the lever is released, the fluid in the reservior rises again.

I can imagine that an excess of fluid in the reservoir could lead to there being nowhere for the fluid in the slave cylinder to escape to, hence the clutch not engaging fully.

But I'm speculating

Gonna check my fluid level tonight!

 

[GSmonkey]

Try doing a search on "clunk"

 

[Pukmeister]

Wasn't he the one with no neck in 'Catch the Pigeon' ??
A bit of an inventive chap as I recall but no good with descriptions.

 

[Piggers]

Mine does it

 

[Deleted account 211025001]

Wasn't he the one with no neck in 'Catch the Pigeon' ??
A bit of an inventive chap as I recall but no good with descriptions.

http://www.hotink.com/wacky/dastrdly/

Andres

 

[Mouse]

For the record, I checked my fluid level. It was right on the maximum mark, so I removed 4ml of fluid from the reservoir, taking the fluid level to about half way between min and max.

Bike's off the road at the moment so I can't see if this has any effect on "the clunk"

 

[drdata]

I split traffic with a lot of 1st/2nd gear tooling, combined with a lot of clutch activation. I do not sense any clunk or noise from the engine/clutch, but sometime feel the drive-line slap when I regain speed. If I am at a light and start to pull away I never hear any noise.

Cheers

 

[Mel]

I thought it was my knees.......