Tim K

Further to this topic, what would the wartime finish of the brake rod be please?

Nickel plating, would be my best guess….

Hi, thanks Ron. He was moving house last week. Fingers crossed he unearths one for me this week!

Hi, what should the front brake cable/rod assembly look like please? I’ve been studying photos and it looks like the bottom head lamp bracket bolt is where the cable transfers to the rod………but I don’t have any of the parts! The bike I’m building has had an extremely hard life in Asia! Photos, or even better, drawings with dimensions, or a supplier of said parts would be very useful please.

Nice one, there are still engineers out there, even after 25+ years or hardly any company training apprentices! 

Modern engines became so reliable that a lot of automotive engineering places closed down. The latest generation of 3 cyl. engines making huge amounts of torque aren’t so reliable, so any machine shop left tends to be really busy. I don’t want loads of spam messages on my phone, so I will write my phone number in words, he can contact me whenever……

zero seven eight nine zero

four nine five

six five zero

Hi, I can sort both of those jobs for you. I’m in Derbyshire. The chap mentioned below is very good too.

Thanks for that information REWDCO, I’ve sourced what seems to be a suitable imperial gear, they are both only spur gears not rolling contact ones, as far as I can tell?. I’ve machined up a suitable hub and it drives the speedo drive round. It was a bit notchy, which I put down the burrs on the hub drive gear. I ran out of time to dress them up and re-try. I will know for deffo next time I’m off work and can attack the hub gear with a file.

I do know about the Cornucopia ones Ron, thanks. He seems to have a similar sales technique to Bantam John!! So I’m exploring other avenues first.

Hi, thanks for that info Ron, I had no idea about that. If it works, it works, I guess…..

Hi Ron,

I’ve worked out the dimension, but measuring the hole centres and the od of the hub drive gear, less the depth of its teeth. I’ve also sourced what should be a suitable gear to make the drive pinion from. I’ve kind of had to make a guess as to the depth of mesh of the two gears. If someone knew the od of the pinion drive gear, I would know if my guess is correct or not.

The object of the exercise is to drive the speedo, so achieving that is my main aim, but it would be nicer to know that I’ve made an accurate copy, if that makes sense?

Hi, can anyone tell me the outer diameter of the 19 tooth speedo drive pinion, for a Triumph 3HW please? I’m talking about the spur gear that drives the speedo drive, not the larger gear that’s fitted to the hub.

cheers,

Tim.