Vibration.

[Kipster]

My 650 aircooled has developed vibration around the mid to high engine range. It is not the engine itself, it sounds like maybe a twisted shaft on the cooling side?  A little hint is a dusting of what looks like brass swarf lying around the engine cooling vent. (The one that opens when hot). Are there any brass type bushes on the cooling fan?  Time to pull it apart again i guess.

[Rusty's Uncle]

Could well be the rear bearing in the dynamo breaking down and grumbling. Would get messy if it breaks down completely.

[Kipster]

Mine has an alternator, would that be the same?
Thanks, cliff.

[dajwid]

I still have the half stripped engine in my garage in you want to pop over and have a rummage 

See what it could be before attacking yours, always easier to see on a bench.

dave

[Kipster]

Thanks Dave.
If you also look and listen to the problem you can give me your opinion also.
The car is running so much better since you last had a look, i am getting there slowly, just bought drive shaft gaiters for the impending MOT.
Maybe the coming weekend if convenient, i have so much work on at the moment my Saturdays are booked, so maybe Sunday again?

[dajwid]

I think I am free the Sunday after, this weekend tied up with 'Scouting' I'm afraid.

But more than welcome to play in the garage 

[Kipster]

OK mate..
Know about the scouting thing, we have done our fair share of that  .

[Kipster]

Sorry Dave cant make it. working again.