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Author Topic: 1930 S6 brakes  (Read 7865 times)

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Offline Michael Scott

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1930 S6 brakes
« on: 15 Jan 2008 at 15:13 »

I am making progress with my restoration from an 80% pile of bits and now trying to solve missing bits on the brakes.
Can any one let have a picture or drawing or details of the bit(s) that hold the brake actuating arm to the brake shoe bobbin and the back plate?
Michael Scott
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Offline Stuart Lister

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Re: 1930 S6 brakes
« Reply #1 on: 15 Jan 2008 at 21:37 »
Hi Micheal,
Check out this recent post, I think it shows what you are asking for.
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Offline Stuart Lister

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Re: 1930 S6 brakes
« Reply #2 on: 15 Jan 2008 at 21:43 »
Quote from: Stuart Lister on 15 Jan 2008 at 21:37
Hi Micheal,
Check out this recent post, I think it shows what you are asking for.

Sorry, I forgot to include the link. Here it is

https://www.douglasmotorcycles.net/index.php/topic,2440.0.html
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Offline Michael Scott

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Re: 1930 S6 brakes
« Reply #3 on: 16 Jan 2008 at 08:20 »
Quote from: Stuart Lister on 15 Jan 2008 at 21:43
Quote from: Stuart Lister on 15 Jan 2008 at 21:37
Hi Micheal,
Check out this recent post, I think it shows what you are asking for.

Sorry, I forgot to include the link. Here it is

https://www.douglasmotorcycles.net/index.php/topic,2440.0.html
:)

Stuart
Many thanks. exactly what I need.  Do you know what the thread on the bolt is?  25tpi I bet!
Regards
Michael
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Offline Michael Scott

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Re: 1930 S6 brakes
« Reply #4 on: 16 Jan 2008 at 15:57 »
Now I look more carefully I am still missing a part.
My spool piece on the brake shoe has a clean 0.25 hole and I guess the new bolt is also a 0.25 and goes through.
I need something to screw into and thus locate and retain the assembly to the back plate.  I only a 0.25 clearance between the spool and the back of the drum.

Any thoughs or picytures anyone?
Michael
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Offline Stuart Lister

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Re: 1930 S6 brakes
« Reply #5 on: 16 Jan 2008 at 17:17 »
Hi Michael,

The bolt is quarter inch bsf 26tpi, and the back of the spool ought to have a female thread to match. Can't explain why yours should have a "clean" hole straight through.

Hope this helps,

Stuart
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Offline Doug

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Re: 1930 S6 brakes
« Reply #6 on: 17 Jan 2008 at 02:46 »
Michael,

Someone drilled through the bobbin. Perhaps they were switching the bobbin from one hand into the other. I have seen bobbins where the hole in the center had been filled with weld and re-drilled and tapped, and you can do the same to repair yours.

-Doug
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Offline Michael Scott

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Re: 1930 S6 brakes
« Reply #7 on: 17 Jan 2008 at 08:50 »
 :lol:

Stuart/Doug
Many thanks for the rapid and very useful responses
I was drifting into your explanations as a solution for my situation so its nice to know I will be doing it to original design.

Michael
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