Peeps,

Bought Caerbont instruments.

Speedo has magnetic proximity sensor which works by sensing change in magnetic field as it' passed by a (propshaft) bolt.

I will have to mount near driveshaft (smooth - no bolts) as no space near prop.

I was thinking that as I it works from bolts, I will be able to glue some 5mm thick steel tags to the driveshaft instead.

Does this sound like it'll work (and what glue is recommended)?

Thanks very much

ATB

Simon

maybe use a small magnet?

lots of araldite should do the job nicely

I was going to order some magnets (which I don't, obviously, have), but as I've never come across magnetic nuts and bolts, I thought I'd just glue on some steel (which I do have!)

I'll try it and see what happens!

Cheers

ATB

Simon

use the magnetic rubber from a fridge door,must be a fridge mountain near you

Depends on the type of sensor and the circuit, some will work off a reluctor ring even off bolt heads other just use a simple reed switch which requires a magnet on the rotating part this the type used on pushbike speedos also on the extra speedo fitted to traffic police cars.

Reed switch type can be trigger by a couple of magnets arraldited onto an alloy wheel rim. See Rob Lanes site he fitted a bike speedo a couple of years back.