Speedo drive

[Stubaker58]

Hi,
Changing my tyres and this came to light, it still works amazingly but how long before it falls apart?
Has anyone got a spare?

[Stubaker58]

Should have said ... it’s off a ‘79, double disc, 31/2 Sport.

[72degrees]

I'll have a look in the shed, as I replaced the one on the Forgotten Error (77 cast wheel disc) (with a drive-less cover. Missing the actual worm gear bit though if I remember correctly, as I had to pinch that for the 2C/375 when that chewed up the teeth. I think they are fairly standard? When (don't hold your breath) I find it, I'll take a photo and some dimensions.

[norbert]

If you don´t find one for dobledisc, you can use the normal one with no disc on the right side. With a saw, file or flex you have to cut the outer part of the cover. The inner part is the same as for dobledisc

norbert

[Ming]

I may have one. I think you may be able to find the castings on line, the worm drive is worth saving, or you may be able to weld the crack.

[Stubaker58]

Thanks guys.
If you come across anything let me know how much. If I can’t find a replacement I’ll look at getting it welded and spending some time with a file.
Stu

[72degrees]

Eureka.

Though I think it's not a direct replacement. I can measure it up if the Fount Of All Knowledge here think it might work.

Speedo Drive MRC.jpg (181.18 KiB) Viewed 4493 times

[Stubaker58]

Thanks for that. I think that’s the one for a single disc wheel.
Ming has sorted me out with one in good order, so all good there.

[72degrees]

Thanks for that. I think that’s the one for a single disc wheel.
Ming has sorted me out with one in good order, so all good there.

OK. Thumbs up for Ming !