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The BSA A7-A10 Forum
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Technical (Descriptive Topic Titles - Stay on Topic)
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A7 & A10 Engine
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timing side bush
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Topic: timing side bush (Read 1097 times)
sysum
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Join Date: Dec 2010
Posts: 7
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timing side bush
«
on:
29.01. 2012 14:57 »
hi all need some advice on were to get my timing side bush/crank clearance machined looking for some one within an hour of Gloucester or Bristol, don't want to go the SRM route nothing against them but would rather use a smaller more old school type of engineer. I am a toolmaker myself and i did one many years ago but now cant get homers done at work its called the recession or so my boss tells me many thanks Paul
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rigid girder m20, s/arm, A7 s/arm A10, A7/B33 hybrid trials, A7 plunger
bikerjohndavies
John Davies, Bath, UK
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Join Date: Jun 2010
Posts: 284
Karma: 6
1953 BSA A10 Super Flash
Re: timing side bush
«
Reply #1 on:
29.01. 2012 15:04 »
I use a chap called Gary Bowden of Bowden Auto Engineering, Redfield Road, Patchway, Bristol. BS34 6PJ Telephone: 0117 9693355. He is very good with classic motorcycles.
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1931 Ariel VB31, 1935 Triumph 5/3 project, 1946 Ariel Square 4, 1952 Norton Model 7, 1953 BSA A10 Super Flash, 1954 Ariel VH
sysum
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Re: timing side bush
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Reply #2 on:
29.01. 2012 17:12 »
hi thanks very much i used Gary 15 years ago for a 6T i was rebuilding forgot all about him and lost his number its an age thing cheers Paul
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rigid girder m20, s/arm, A7 s/arm A10, A7/B33 hybrid trials, A7 plunger
Goldy
Warwickshire, England
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Join Date: Dec 2008
Posts: 619
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Re: timing side bush
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Reply #3 on:
29.01. 2012 17:13 »
bikerjohndavis sounds as though he has just the right place for you. Any Engineering Company can do it. C and D have a good range of undersizes bushes ready for boring. I like your word homer, where I come from we call them foreigners. All the best.
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56 A10 Golden Flash - Restore, ride, relive.
56 C12 BSA project ongoing
bikerjohndavies
John Davies, Bath, UK
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Join Date: Jun 2010
Posts: 284
Karma: 6
1953 BSA A10 Super Flash
Re: timing side bush
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Reply #4 on:
30.01. 2012 08:26 »
Glad I could help. It seems that the current thinking is to use a maximum oversize bush and grind the crank journal as little as possible to give it a good face then match the bush to it rather than take it down in 10 thou stages. This should allow the crank to survive longer.
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1931 Ariel VB31, 1935 Triumph 5/3 project, 1946 Ariel Square 4, 1952 Norton Model 7, 1953 BSA A10 Super Flash, 1954 Ariel VH
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The BSA A7-A10 Forum
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Technical (Descriptive Topic Titles - Stay on Topic)
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A7 & A10 Engine
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timing side bush