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Author Topic: Braces across the rocker boxes ?  (Read 1267 times)

Offline Stephen Foster

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Braces across the rocker boxes ?
« on: 22.05. 2014 10:12 »
Wonder if Anyone can help ..should the longstroke A7 have braces across the two rocker box halves please ?
If so has Anyone a sketch , etc I could work from to make Myself a set ?

At the moment My "Star Twin" does not have these but reading the handbook they are mentioned ?
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I own a 1955/56 B.S.A Swinging Arm "Golden Flash" , had it since 1976 .

Online Brian

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Re: Braces across the rocker boxes ?
« Reply #1 on: 22.05. 2014 10:38 »
Here's a scan from the parts book Steve, part no 67-63. Just two bits of flat steel by the looks of it.
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Offline Stephen Foster

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Re: Braces across the rocker boxes ?
« Reply #2 on: 22.05. 2014 18:29 »
Thanks Brian ..thats exactly what they are going to be very soon !
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I own a 1955/56 B.S.A Swinging Arm "Golden Flash" , had it since 1976 .

Online trevinoz

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Re: Braces across the rocker boxes ?
« Reply #3 on: 22.05. 2014 22:58 »
Steve,
                The braces are approx. 2.5" long with radiused ends, 0.750" wide and measure 0.088" thick, but that is with chrome plating. I would make them from 2mm steel if available. Maybe 20mm x 2mm.

Trev.
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Offline Stephen Foster

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Re: Braces across the rocker boxes ?
« Reply #4 on: 24.05. 2014 07:33 »
Thanks Trev .
I will be using 2mm Stainless Steel most likely .
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I own a 1955/56 B.S.A Swinging Arm "Golden Flash" , had it since 1976 .

Offline Peter in Aus

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Re: Braces across the rocker boxes ?
« Reply #5 on: 24.05. 2014 09:19 »
My A7 longstroke dose not have them I wonder what they are supposed to do! Dose any one know?
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Busselton West Australia
49 A7 longstroke
58 A10  SA

Offline Stephen Foster

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Re: Braces across the rocker boxes ?
« Reply #6 on: 24.05. 2014 10:28 »
Peter ,
I would imagine the braces reduce flexing of the rocker covers ?
One of the more knowledgeable members may be able to enlighten Us ?

I only discovered their existence by chance after reading a parts list recently .

Steve ..
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I own a 1955/56 B.S.A Swinging Arm "Golden Flash" , had it since 1976 .
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