Smiths PA adaption

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nickbenson
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Smiths PA adaption

Postby nickbenson » Thu Feb 16, 2017 7:10 pm

Hi folks
I have a old Smiths PA speedometer with a brass body and horizontal drive, it has a 60mph face and I think it is maybe from a old Austin 7. It fits nicely into the tank panel of my 1937 VH, and sort of looks the part although I understand it should be a 100mph face, it seems to be complete inside.
Could anyone tell me if it is feasible to get these adapted to work properly on my VH and does anyone know any company who do this sort of thing. Does it cost mega bucks? Regards Nick

nevhunter
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Re: Smiths PA adaption

Postby nevhunter » Thu Feb 16, 2017 9:30 pm

If it fits and the gearing is close, you are getting there. The 100 mph is a new face and a new spring. Your distance features are by the gearing. No of turns for a distance travel of rear tyre (with gearbox drive). Nev

nickbenson
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Re: Smiths PA adaption

Postby nickbenson » Fri Feb 17, 2017 5:48 pm

Thanks for your reply. Cheers Nick

Simon.Gardiner
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Re: Smiths PA adaption

Postby Simon.Gardiner » Fri Feb 17, 2017 7:55 pm

Not sure if this link is useful (he deals with older mechanical types as well as magnetic)
http://www.magnetic-speedometer-repair.com

SG
'55 Huntmaster, '56 VH, ' 51 VH, '80 R100RT, '00 Sprint ST (but all those Ariel parts can only make one running bike...)

nickbenson
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Location: East Yorkshire
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Re: Smiths PA adaption

Postby nickbenson » Wed Feb 22, 2017 5:26 pm

Very useful thanks. Nick

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Dave.Barkshire
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Re: Smiths PA adaption

Postby Dave.Barkshire » Mon Feb 27, 2017 4:19 pm

The car PA speedos are sometimes adapted for Ariels but the mileometer will not work at the correct rate so far as I understand.
1938 Ariel Red Hunter VH 1928 Royal Enfield 4.88hp AOMCC Member 3400


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