54 VH Exhaust Valve Stem Diameter

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Ian.Cockshull
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54 VH Exhaust Valve Stem Diameter

Post by Ian.Cockshull »

My 1954 VH engine has an exhaust valve with a stem diameter of 0.375 (3/8") and an inlet valve with a smaller stem diameter.
I am suspecting that my exhaust valve is non-standard - can anyone confirm please?
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keith.mettam
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Re: 54 VH Exhaust Valve Stem Diameter

Post by keith.mettam »

Hi Ian,
According to the measurements on the Feked.com site your exhaust valve stem has the right diameter for a '54 VH. The inlet valve stem is a smaller diameter at 11/32" from their info. See following links :-
https://www.feked.com/index.php?match=a ... 40&page=11
https://www.feked.com/ariel-inlet-valve ... 15-35.html
Regards,
Keith.
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Ian.Cockshull
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Re: 54 VH Exhaust Valve Stem Diameter

Post by Ian.Cockshull »

Thanks Keith, that has set my mind to rest, never thought to look at the Feked.com site. Also it confirms that my inlet valve is correct too.
Best regards, Ian
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Roger Gwynn
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Re: 54 VH Exhaust Valve Stem Diameter

Post by Roger Gwynn »

You could also refer to the table on the Draganfly site that lists all the Ariel and BSA valves with their dimensions. https://draganfly.co.uk/wp-content/uplo ... alves2.pdf
Roger Gwynn, Membership Secretary, curator of the Machine Register and the works drawings. Director of Draganfly Motorcycles, Craven Equipment and Supreme Motorcycles mostly retired.
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