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Abracadabra: White rubber disk on drive shaft bell disappeared
- Micha
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Abracadabra: White rubber disk on drive shaft bell disappeared
When I parked at home again, I noticed that the driveshaft rubber disc was gone. It was in great shape and now it's just gone. The truth is that it made me laugh. There are not even any leftovers
Anyone familiar with this phenomenon?
R51/3 1952
Engine Nr. 529466
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Re: Abracadabra: White rubber disk on drive shaft bell disappeared
Re: Abracadabra: White rubber disk on drive shaft bell disappeared
if having things fall off your motorcycle, never to be seen again, makes you laugh, then I strongly recommend that you dispose of the R51/3 and get yourself a late 1960s Triumph, your sides will be aching!
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- Micha
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- Location: Israel
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Re: Abracadabra: White rubber disk on drive shaft bell disappeared
Theoretically, if someone were to travel the roads I was on with the BSA dragging a huge magnet behind him, there is a high chance that he could assemble half a motorcycle from the parts that would stick to it.
These 2 bikes were designed more or less in the same technological period, and one can only marvel at the high level of the German bike, compared to the stubborn and and puzzling conservatism of the English to create motorcycles.
Anyway, today I was in the parking lot and I attached some pictures. It can be clearly seen that this rubber disc has been melted or eaten away while the shaft was turning. It must have had a high friction against that metal bell.
Another thing I noticed, is the angle of entry of the drive shaft into the metal bell cover, it seems to me that it is not centered, on the other hand, does it have to be centered?
R51/3 1952
Engine Nr. 529466
- schrader7032
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Re: Abracadabra: White rubber disk on drive shaft bell disappeared
In your case, the small area that the original donut rides on the shaft appears to be shifted towards the bell housing. I don't think the donut is supposed to touch the bell housing.
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.
Re: Abracadabra: White rubber disk on drive shaft bell disappeared
Re: Abracadabra: White rubber disk on drive shaft bell disappeared
I, too have a BSA M20 that I picked up as a winter project last year. Compared to a BMW, they are very primitive and rough riding. I don’t have enough confidence in it to take it for an extended ride whereas I ‘ll ride the BMWs anywhere.Micha wrote: ↑Mon Mar 11, 2024 12:16 pmI see what you mean, but having owned a BSA M20 for decades, this is where I laugh, whereas with the BSA I cried.
Theoretically, if someone were to travel the roads I was on with the BSA dragging a huge magnet behind him, there is a high chance that he could assemble half a motorcycle from the parts that would stick to it.
These 2 bikes were designed more or less in the same technological period, and one can only marvel at the high level of the German bike, compared to the stubborn and and puzzling conservatism of the English to create motorcycles.
Anyway, today I was in the parking lot and I attached some pictures. It can be clearly seen that this rubber disc has been melted or eaten away while the shaft was turning. It must have had a high friction against that metal bell.
Another thing I noticed, is the angle of entry of the drive shaft into the metal bell cover, it seems to me that it is not centered, on the other hand, does it have to be centered?