Smiths chronometric speedometer serial numbers

DQs bikes in 2015 Velocette Velocette KSS specials (1).DQ screen prints a dial instrument dial faces (1).Book Review- Ferodo Record Braking 1938 (1).Book Review- Clymer's reprint of UK 'Motorcycling' WD service sheets (1).Book Review- Circus Life by Don Cox (2).Allan Schafers correspondence and photos (9).Adverts in Australian Motorcycle magazines (2).2012 Back to Bundanoon Australian Velocette Owners Club Rally (2).2005 Australian Centenary Velocette Rally (2).'MotorCycling in Australia' V.1No.11 (1).Keith Bryen, Aussie privateer and finally works Mo.A look through some photos from DQs archive.no p.Removal of a Smiths chronometric speedo or tacho b.Left click on the images to enlarge them for better viewing. I suggest you make up, from someВ convenientВ angle piece a bracket to mount the instrument to and hold this in a vice.

The trick is to use careful heat, played around the rim edge until the remains of the 'O' ring really do melt and then quickly fit the strap wrench and in 99.9% of cases the rim quickly and easily unscrews and when cleaned up of the resulting rubber mess can be re-used.ДЄs well there is no damage to the dial and internal components. The rim wont move under normal pressure if it is like this. The 'O' ring seal used by Smiths was made of natural rubber and these perish over time and appear to 'melt' effectively glueing the rim to the glass and oozing onto the glass carrier or slipring/mask.

So what is one of the major reasons a bezel is stuck?

Putting too much pressure onto the rim will distort it and that in turn causes the bezel to grip harder. I dont think they make them like this now as years back I tried to get more and they had gone over to plastic which as you read down the blog, you'll see is not suitable. You need a good strap wrench.the best I came across was a type and you'll see it illustrated, that was made in the USA and has s mall rubber type suction pads. The thread is relatively fine for the diameter and removal of the bezel from the case by unscrewing is not always easy. The bezel of the 80mm diameter (3') chronometric has a rim with an 80mm x 0.9mm thread. This could be the last post from me for the year and it is an item long overdue from me to add to the several posts I've done on the Smiths chronometric speedometer and tachometer.

Smiths chronometric speedometer serial numbers