The BSA A7-A10 Forum
Technical (Descriptive Topic Titles - Stay on Topic) => A7 & A10 Engine => Topic started by: bsa-bill on 26.07. 2010 22:13
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Hi Folks - while I've got the head off, thought I'd check everything out while I wait for bushes arriving.
One thing I'm not 100% sure about is which way up do the bottom valve springs cups go.
I have them with the wider boss to the bottom, is this correct
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G'day Bill,
I'm pretty sure the narrow side goes down. Less area for heat transfer. See which side the springs fit better.
Cheers
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The bottom cup centers the springs. Fit it to do this.
David