07-02-2019, 07:22 PM
(This post was last modified: 07-02-2019, 07:38 PM by Mark Atkinson.)
(26-01-2019, 10:36 AM)Austin in the Shed Wrote: What ratio is you revcounterHello Austin in the Shed,
I must apolagise for my very slow reply, but, I have had a few IT gremlins.
We need to drive the rev counter at 2:1 (input:output), the drive for which is taken from the Magneto drive shaft with an output gear located in the normal location of the vernier.
Interestingly, but, incorrectly, this pair of gears is often identified as the supercharger drive by people writing about the car, when in fact the supercharger drive is taken from timing gear.
A picture is worth a thousand words, so please see attached.
engine2.jpeg (Size: 46.02 KB / Downloads: 659)
As you will see in the period picture, the outer gear drives a right angled take off located forward of the mounting plate which takes the output up to the rev counter.
Kind regards, Mark.
(27-01-2019, 01:51 PM)Mark Atkinson Wrote:(25-01-2019, 10:31 PM)Lettington Wrote: Beautifully made Mark... Can you post a picture of the temperature gauge you are looking for? Could it be from a vintage aircraft?
Hi Nick and Damian,
As suggested by you both, please see pictures below, it is a Smiths automotive part, with a Nickel plated bezel of
2 & 7/8” overall diameter, the instrument body is 2 & 5/16” dia.
While the originals had silver/white faces, I could accept black and make my own to get it right. I have two Rev. counters, both of which are black, but I will eventually make a new face to match the one in the picture below.
Kind Regards, Mark
I have just had a few problems attempting to reply, which has lost pictures and mixed up, my replies, so have forwarded my problems to administration, and will reply when things are sorted.
kind regards, Mark.
Following on from my IT issues, which stopped me posting, please see attached picture of my slightly grotty new temperature gauge, which happily popped up on ebay yesterday, and I swiftly bought! It lacks a capilary tube, so will need restoring to functionality, but, after several years of searching it was fantastic to find one. Indeed, after looking for so long, I am not sure what I will look out for at auto jumbles now!
Thank you for all your suggestions and support.
Kind regards, Mark.