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r
Robbie
Aug 31, 2016 - 7:30PM
Re: What is the right speedo for a 4 speed box?

Hi Dave

Any chance you have any photos of your box?? A picture saves hours of doing it wrong lol

Thanks
R

Location: Horsham

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Aug 31st, 2016 - 7:30 PM
r
Robbie
Aug 31, 2016 - 7:32PM
Re: What is the right speedo for a 4 speed box?

Nick
But they won't look anything like as nice on the dash of the Ulsteroid. The little reversing gearbox previously described looks like a good idea. It's a shame no one has started to make and market them. I'm guessing this has been a problem for a good number of years. Anyone know where to get the little gears?


Totally agree Nick, I'm now looking at the gears Dave mentioned... Look good!

Anyone know what the thread that the speedo cable outer screws onto is?

Location: Horsham

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Aug 31st, 2016 - 7:32 PM
r
Robert Foreman
Aug 31, 2016 - 8:05PM
Re: What is the right speedo for a 4 speed box?

Robbie,
the thread is 3/4" x 26t.p.i. brass. You should be able to pick up a die a die at Beaulieu.

Best wishes,
Robert.

Location: Deepest darkest Kent

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Aug 31st, 2016 - 8:05 PM
d
Dave Wortley
Aug 31, 2016 - 10:17PM
Re: What is the right speedo for a 4 speed box?

photo 178_zpswuik2yir.jpg photo 181_zpsczh8fj7k.jpg photo 180_zps7mhsbdsi.jpg
Robbie,
Top photo is tacho drive,bottom one is speedo drive. Speedo and tacho are Ford 10 circa 1950 or so. A Smiths one like yours could be modified similarly.The Ford ones were very cheap to buy from a scrap yard in 1970.Tacho drive is taken from the underside of the distributor using a Ford 10 speedo cable.
The speedo input gear is mounted on the remains of a 1936 A7 speedo so that an A7 cable end screws directly onto it. The 4 speed box has the housing for the speedo drive rotated so that it comes out a few degrees off vertical.
Dave.

Location: Sheffield

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Aug 31st, 2016 - 10:17 PM
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