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The BSA A7-A10 Forum
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1952 Flash auto advance springs
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Topic: 1952 Flash auto advance springs (Read 960 times)
anjimehra
Valued Contributor
Join Date: Feb 2009
Posts: 343
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1952 Flash auto advance springs
«
on:
05.04. 2013 07:54 »
Hi
Just got back from a long weekend on the Flash & opened the timing cover to find one of the auto advance springs broken??
Cant figure out how this could have happened. Any ideas where one can pick up these springs or any equivalent?
Thanks
Anji
Pune, India
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India
muskrat
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Join Date: Jul 2009
Posts: 11047
Karma: 132
Lithgow NSW Oz
Re: 1952 Flash auto advance springs
«
Reply #1 on:
05.04. 2013 08:45 »
G'day Anji, I'm sure one of the members will help out. They will probably suggest replacing both as a pair, I would.
Lucky it didn't get stuck in the workings and hold it at full advance. Would make starting interesting.
Cheers
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'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7
Stephen Foster
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Join Date: Sep 2011
Posts: 533
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Re: 1952 Flash auto advance springs
«
Reply #2 on:
05.04. 2013 08:50 »
Anji ,
I have seen these on "ebay" occasionally ?
I am pretty sure these could be sourced in the U.K ..probably "Lightning Spares" , "Draganfly" etc ?
Let Me know if You struggle & I wil try to get a pair .
Steve ..
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I own a 1955/56 B.S.A Swinging Arm "Golden Flash" , had it since 1976 .
Stephen Foster
Resident Legend
Join Date: Sep 2011
Posts: 533
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Re: 1952 Flash auto advance springs
«
Reply #3 on:
05.04. 2013 08:55 »
498157 on "ebay" .
Just found this in the U.S.A ?
I have had spares from this outfit previously & they seem very good .
Steve ...
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I own a 1955/56 B.S.A Swinging Arm "Golden Flash" , had it since 1976 .
a10 gf
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Join Date: Sep 2006
Posts: 3230
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West Coast, Norway & Alpes Maritimes, France
Re: 1952 Flash auto advance springs
«
Reply #4 on:
05.04. 2013 11:00 »
Springs can brake (after 50+ years
nothing special). Change both, and buy from a magneto specialist > get the best possible springs \ correct tension to be sure the advance\retard works properly.
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mayes
Moving Up
Join Date: Mar 2013
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Re: 1952 Flash auto advance springs
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Reply #5 on:
07.04. 2013 15:14 »
Anji find a mag specilist they will be able to help but do not cut cost get the best as some springs are poorly made and do not give correct tension John
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B.S.A A10 1955 Under restoration
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1952 Flash auto advance springs