Author Topic: Tacho  (Read 829 times)

Offline bl**dydrivers

  • Valued Contributor
  • ****
  • Join Date: Oct 2008
  • Posts: 253
  • Karma: 1
« on: 08.02. 2014 16:58 »
Hi all,

I've been wanting a tacho for my Super Rocket for more than awhile.
Would like an original Smiths and only have come across a few on ebay but sell for a god awful lot.
All chronometric specialists I've contacted don't have any but only do repairs.

If I was to get any chronometric tacho, could I have a restorer to convert it to the one I need?

I don't really care on condition, as long as its repairable and the conversion can be carried out.

Any sources recommended?

Thank you.

Offline chaterlea25

  • Wise & Enlightened
  • *
  • Join Date: Jun 2009
  • Posts: 3146
  • Karma: 45
Re: Tacho
« Reply #1 on: 08.02. 2014 17:05 »
I believe that a chrono speedo can be converted to a tacho, I know that the tacho has a slightly different "movement" but it will work
The Super Rocket tacho needs to be a,  / L which is opposite rotation to most
The reversing gear can be added internally

Does your SR have the correct inner timing case incorporating the drive ?
If not then an alternative might be the recent thread about the Smiths digital tachos

1961 Super Rocket
1963 RGS (ongoing)

Offline bl**dydrivers

  • Valued Contributor
  • ****
  • Join Date: Oct 2008
  • Posts: 253
  • Karma: 1
Re: Tacho
« Reply #2 on: 08.02. 2014 19:14 »
It's the type driven by the oil pump.

Online Billybream

  • Valued Contributor
  • ****
  • Join Date: Jan 2012
  • Posts: 499
  • Karma: 5
Re: Tacho
« Reply #3 on: 09.02. 2014 09:54 »
I was in a similar situation last year, always wanted Rev counter for my Super Rocket, trying to find one was not easy, and going for silly money on Ebay, and still in most cases would need extra cost of refurbishment.
Correct Rev counter = RC1303/03, Anti Clockwise, 3 to 1, you will also need cable, drive kit and mounting bracket, i found all these on Ebay
Suggest you try Ashley, cost for as new(old) Rev counter was £200.00

Try Ashley Pople
TEL/FAX: +44 (0)1252 329826
MOBILE: +44 (0)7824 884434
A.E. Pople, Speedo Repairs,
C/O A & E Coachworks,
The Vehicle Centre
Ashchurch Road,
GU12 6LX
1960 Super Rocket, owned since 1966, back on the road 2012 after being laid up for 29yrs.

Offline 1959superocket

  • Moving Up
  • **
  • Join Date: Sep 2013
  • Posts: 33
  • Karma: 1
Re: Tacho
« Reply #4 on: 09.02. 2014 18:30 »

Agree its the 1303 model for the RC from the oil pump drive from 1960 on 3 :1 ratio as previous post.
I would try Ian Bartram and if he does not have one ask him about picking up another model on ebay and what models could be converted then when you pick one up Ian can refurb it for you and put the correct face and needle on it.
I bought an RC and Speedo on ebay as non working for restoration and Ian did a superb job and 3500 miles working well.
Cost was about £125 each to restore but they look like new and I think I paid about £60-70 each for them on ebay as for restoraton so expect about £200 all in.

Online Angus

  • Suffolk, UK
  • Valued Contributor
  • ****
  • Join Date: Nov 2012
  • Posts: 488
  • Karma: 10
  • The A7
1961 A7 since 1976
1960 A10 Gold Flash Super Profile Bike
1958 Matchless G80 Project
1952 Norton Model 7 Plunger (becoming a project)

Offline Rocket Racer

  • Wise & Enlightened
  • *
  • Join Date: Jun 2009
  • Posts: 1401
  • Karma: 16
  • A kiwi with a racing A10 rig and too many projects
    • NZ Classic Sidecar Racing
A good rider periodically checks all nuts and bolts with a spanner to see that they are tight - Instruction Manual for BSA B series, p46, para 2.
New Zealand