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#711299 - 10/12/17 7:14 am DB34 Shim thickness ?  
Joined: Dec 2013
Posts: 325
Charlieboy Online content
BritBike Forum member
Charlieboy  Online Content
BritBike Forum member

Joined: Dec 2013
Posts: 325
Australia
Hello all,
Can anyone let me know please,the correct thickness of the Drive Side Engine Shaft Shim ... part # 66-661 in the Goldie parts book .
The shim that came out of the Bike is pretty damaged (hammered (?) into a concave shape) and is roughly .020" thick..
Thanks ..... Charlie.
1956 DB34 ..

BSA Gold Star eBay items

BSA Gold Star forum This board is dedicated to BSA Gold Star motorcycles.

#711312 - 10/12/17 2:22 pm Re: DB34 Shim thickness ? [Re: Charlieboy]  
Joined: Jun 2016
Posts: 42
ToolBox Dave Online content
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ToolBox Dave  Online Content
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Joined: Jun 2016
Posts: 42
Boise, Idaho USA
"The shim measures 0.0195 inches and the space it goes into is about 0.034 inches deep". Quoted from Gordo below.

http://www.britbike.com/forums/ubbthreads.php?ubb=showflat&Number=668717


1961 BSA DBD34 Clubman
1966 Triumph T120TT
1972 Rickman 250MX


#711396 - 10/13/17 4:56 am Re: DB34 Shim thickness ? [Re: ToolBox Dave]  
Joined: Dec 2013
Posts: 325
Charlieboy Online content
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Charlieboy  Online Content
BritBike Forum member

Joined: Dec 2013
Posts: 325
Australia
Thanks very much Dave,just the info I was after..
I was lucky enough to find a new shim amongst my bits and pieces... measures .018" ... should be OK..
I was thinking .... at some stage in the Bikes' life,the Engine sprocket had come loose.I wonder if that was the cause of the shim being damaged so ..
Anyways ... we have a new shim,new bearings and a new crankshaft assembly to go in ... that should keep the Goldie contented for a while.
All the best mate ..

#712940 - 10/27/17 9:02 pm Re: DB34 Shim thickness ? [Re: Charlieboy]  
Joined: Sep 2012
Posts: 95
68triton Offline
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68triton  Offline
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Joined: Sep 2012
Posts: 95
London Uk
Have not done one in a while, but shim = 30thou, max of 3 allowed. (in Gold star book i think)

Shims always get hammered here, so determined shim (chain alignment ) and adjust / make the spacer behind correct size.


Mike


Mike.



#712956 - 10/28/17 1:21 am Re: DB34 Shim thickness ? [Re: Charlieboy]  
Joined: Dec 2013
Posts: 325
Charlieboy Online content
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Charlieboy  Online Content
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Joined: Dec 2013
Posts: 325
Australia
Cheers Mike .. thanks for that Info.
We've done the chain alignment ... all good at this stage ..


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