Noise From Transmission.

Technical Big Block Tonti and Loop Frame models
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California 1100 Ev 2005



Got back after a decent run into Dorset, on the last few miles
home started to hear a mechanical noise each time I pulled in the Clutch. The bike
and clutch all working O.K.

At home I investigated further.

All is normal until I pull in the Clutch. Once in there is a
mechanical repetitive clunking chatter.

It appears to be from the transmission end of the engine
more pronounced on the near side.

I take it, it would appear to be a clutch problem? which must
be an engine out job?

Any ideas as to what it might be and advice on best course
of action would be appreciated.RegardsBill Dag
















































































































































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Hi Bill
Clutch access is a matter of both wheels and swing arm out. Battery tray off and loosen engine mounting bolt. The frame them tilts forward to give access to the gearbox. There’s a bit more to it but that’s basically it.
FWIW My EV developed a distinctly Ducati rattle when the clutch is pulled in. This started about 5000 miles ago and doesn’t seem to affecting things too much.
All the best
Steve

3

Might just be cos the plates are loose, BUT problee a good idea to check out the thrust bearing at the back of the gearbox, might be failing, seized whatever. Has the amount of lever adjustment play changed?

4

Hi Bill,
There is a similar thread running in the small block section.
May be worth a look
All the best
Steve

5

small block clutch is different to big block clutch . small block is single plate , big block ( on older models ) is twin plate , hence the rattle when lever is pulled .

6

wot he said,

7

Does it sound like the ball in a roulette wheel when you turn the engine off ;-)I’ve had that problem on my LM4The centre had ripped out of the back clutch plate and had slid back and was free wheeling around the gearbox input shaft !It didn’t do any damage at all but I reckon I only rode it about 10 miles like that.The clutch and every thing worked fine other than a lot of free play at the clutch leverPics save a lot of wordshttps://www.flickr.com/photos/124005478@N05/14971603416/in/set-72157646299972178/


Keef Mayhem2014-08-22 01:56:15

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Steve

So you just pull of the rear of the bike and leave the engine
in place.

Looks like a lot of work but probably easier than it first appears.

Mike

My instinct is to go look even if it is a lot of work as it can’t
be right if it’s making the noise it is

theoneandonly

Are you saying they normally make a noise my bike been pretty
quiet up till now.

Keef

Thanks for the photos as you say a 1000 words.

As An aside Are Cali gear boxes clunky ?

The gear change on my bike is its worst aspect and I think I
read that on other models the gear box is sweet? though it appears to be the
same box.

Is there anything I can look at or do to make it change
better as it is coming out.

The bike has done 14000miles.

Regards

Bill Dag















































































































































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9

The gearbox issues may be answered here :slight_smile:http://www.thisoldtractor.com/guzzitech.dk/gb_en_complex-technical_gearbox-shimming.htmhttp://www.thisoldtractor.com/guzzitech.dk/pdf/gearbox-rebuilding-john-noble.pdfAnd no not all of the gearboxes are sweet, my LM 4 is far worse than my LM 5 and the Calli 1100 I rode the other week was awful.There can be a lot of “lost” travel made by play in the gearchange linkages, getting rid of that can help a lot.


Keef Mayhem2014-08-24 23:53:20

10

The clutch adjustment can also make a difference if it isn’t clearing properly, but as mentioned above, check the lever linkages first as that is a lot easier than going inside the gearbox.

11

Yes. Clutch cable play adjustment can make a surprising difference. Don’t forget there’s adjustment at the back of the box as well.