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Crinkle hub repair. #724750
02/08/18 2:06 pm
02/08/18 2:06 pm
Joined: Jul 2006
Posts: 927
Perth. Wild West Downunder.
M Shearer Online content OP
BritBike Forum member
M Shearer  Online Content OP
BritBike Forum member
Joined: Jul 2006
Posts: 927
Perth. Wild West Downunder.
I have a rear crinkle hub that has a slight gap between the two halves where they come together. It seems one or more of the rivets may have loosened. They come back together when clamped.
I was thinking of drilling between the two halves at the joint in 3 or 4 spots with a 3/8" drill bit almost down to the inner sleeve, then welding in the hole to fix the two pieces together.
Anyone think of any reason why I should not do this?


Mark F.
'52 ZB34 Gold Star.
'65 Lightning Rocket.
'74 Roadster Commando.



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Re: Crinkle hub repair. [Re: M Shearer] #724755
02/08/18 2:49 pm
02/08/18 2:49 pm
Joined: Feb 2007
Posts: 508
Ewing. NJ
E
edunham Online content
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edunham  Online Content
BritBike Forum member
E
Joined: Feb 2007
Posts: 508
Ewing. NJ
It would be pretty disastrous if the hub came apart. I would consider taking the wheel apart, if it isn't already. Dissembling the hub, including drilling the rivets, to confirm what the actual problem and then fixing that.

Ed from NJ

Re: Crinkle hub repair. [Re: M Shearer] #724764
02/08/18 3:25 pm
02/08/18 3:25 pm
Joined: Feb 2012
Posts: 521
North Wales Uk
R
rocketgoldie Online content
BritBike Forum member
rocketgoldie  Online Content
BritBike Forum member
R
Joined: Feb 2012
Posts: 521
North Wales Uk
Try mikesclassics@bigpond.com he has lots of spares phone 61738040055 he is inQLD.

Re: Crinkle hub repair. [Re: M Shearer] #724796
02/08/18 7:58 pm
02/08/18 7:58 pm
Joined: Oct 2006
Posts: 2,427
Elburn, Ill. USA
I
Irish Swede Online content
BritBike Forum member
Irish Swede  Online Content
BritBike Forum member
I
Joined: Oct 2006
Posts: 2,427
Elburn, Ill. USA
There are many of these hubs around, and rather than go to the effort of repairing this old one, why not find another?

Re: Crinkle hub repair. [Re: M Shearer] #724798
02/08/18 8:08 pm
02/08/18 8:08 pm
Joined: Feb 2010
Posts: 410
Au
M
markoz Online content
BritBike Forum member
markoz  Online Content
BritBike Forum member
M
Joined: Feb 2010
Posts: 410
Au
With the swede on this.

Re: Crinkle hub repair. [Re: M Shearer] #724811
02/08/18 9:52 pm
02/08/18 9:52 pm
Joined: Jul 2006
Posts: 927
Perth. Wild West Downunder.
M Shearer Online content OP
BritBike Forum member
M Shearer  Online Content OP
BritBike Forum member
Joined: Jul 2006
Posts: 927
Perth. Wild West Downunder.
The wheel is already apart.
The hub is not about to fall apart. The gap is really minor and would probably be ok as is but would be better repaired of course.
We're talking a couple of thou. in one spot only.


Mark F.
'52 ZB34 Gold Star.
'65 Lightning Rocket.
'74 Roadster Commando.



Re: Crinkle hub repair. [Re: M Shearer] #724814
02/08/18 10:23 pm
02/08/18 10:23 pm
Joined: Aug 2001
Posts: 1,869
Elko, Nevada USA
dave - NV Offline
BritBike Forum member
dave - NV  Offline
BritBike Forum member
Joined: Aug 2001
Posts: 1,869
Elko, Nevada USA
It is/was a well known problem with the earlier 3 piece BSA hub for the rivets to shear and the center splined section to spin free. Fact is I had a 'near death' experience with a competitor's hub coming apart.... In later years BSA replaced the counter sunk, flush rivets with a rounded head. Because of this issue, as a precaution I and others had tack welded the hubs together on either side.

More discussion on BSA crinkle hubs: My first 'spool' hub for my Goldie dirt tracker was made from the 2 outer flanges of a hub with a machined alu center holding the bearings pressed in and secured with screws into tapped holes in the center. A modified axle was required.

Last edited by dave - NV; 02/08/18 10:26 pm.

dave - NV
Re: Crinkle hub repair. [Re: M Shearer] #724879
02/09/18 2:59 pm
02/09/18 2:59 pm
Joined: Feb 2012
Posts: 521
North Wales Uk
R
rocketgoldie Online content
BritBike Forum member
rocketgoldie  Online Content
BritBike Forum member
R
Joined: Feb 2012
Posts: 521
North Wales Uk
Hi there is one for sale on eBay under bsa goldstar parts.

Re: Crinkle hub repair. [Re: M Shearer] #724890
02/09/18 4:46 pm
02/09/18 4:46 pm
Joined: Sep 2001
Posts: 2,787
Comox BC Canada
G
Gordo in Comox Offline
BritBike Forum member
Gordo in Comox  Offline
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G
Joined: Sep 2001
Posts: 2,787
Comox BC Canada
As I recall there are three versions of the crinkle hub, plunger type, pre unit swingarm type and the later threaded speedo drive type. Many vendors do not know what they are selling.

Gordo


Without frequent roadside repairs there is no fun in riding!
Re: Crinkle hub repair. [Re: M Shearer] #724989
02/10/18 10:19 am
02/10/18 10:19 am
Joined: Jul 2006
Posts: 927
Perth. Wild West Downunder.
M Shearer Online content OP
BritBike Forum member
M Shearer  Online Content OP
BritBike Forum member
Joined: Jul 2006
Posts: 927
Perth. Wild West Downunder.
I'm not sure what type of hub I have. It has flush rivets and a threaded bearing retaining ring on one side only.
The hollow spindle looks different to what is in the manual.
The bike is a plunger GS but a bit of a bitsa so who knows what the hub is from.


Mark F.
'52 ZB34 Gold Star.
'65 Lightning Rocket.
'74 Roadster Commando.




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