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A7 & A10 Engine
A7 1946-1950
Gearbox, Clutch, Primary
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Lucas, Ignition, Charging, Electrical
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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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Oversize valve guides
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Topic: Oversize valve guides (Read 434 times)
roadrocket
A's Good Friend
Join Date: Mar 2006
Posts: 196
Karma: 1
www.roadrocket.dk
Oversize valve guides
«
on:
01.07. 2019 16:07 »
Hello,
Stupid but easy question here: I take that oversize valve guides refer to the outer diameter, and is meant to accomodate for wear in the head?
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Otto in Denmark
RDfella
Wise & Enlightened
Join Date: Aug 2017
Posts: 2194
Karma: 15
Re: Oversize valve guides
«
Reply #1 on:
01.07. 2019 19:17 »
yes - for some engines used to be able to buy OS guides, but I guess we have to make our own for the A series.
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'49 B31, '49 M21, '53 DOT, '58 Flash, '62 Flash special, '00 Firestorm, Weslake sprint bike.
chaterlea25
Wise & Enlightened
Join Date: Jun 2009
Posts: 4026
Karma: 54
Re: Oversize valve guides
«
Reply #2 on:
01.07. 2019 20:49 »
Hi All
Os guides for the A series are available from SRM
Usually only needed for the alloy head
John
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1961 Super Rocket
1963 RGS (ongoing)
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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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Oversize valve guides