Just pulled out the diff and...........

[bhpjon]

Two days ago i removed the diff to change the bushes for powerflex, and as i dropped the diff a sensor of some description along with two wires came down with it (uses the castellated prop bolt guard as a reference by the looks of things) I hazard a guess the wires go back through a small hole in the floorplan, any ideas what they do please?

[mick_coupe]

Its the speedo sensor !

Mick

[steve-v8s]

This may not be relevant, but when I changed the Diff on the Griff, I made the bold assumption that by simply bolting the sensor bracket back in place it would be correctly aligned. Bad move ! When I drove the car there was a curious whine, which, yes you guessed it was the toothed wheel grinding down the speed sensor. There is actually a fair bit of adjustment available in the holes on the bracket.

[bhpjon]

steve-v8s said:

This may not be relevant, but when I changed the Diff on the Griff, I made the bold assumption that by simply bolting the sensor bracket back in place it would be correctly aligned. Bad move ! When I drove the car there was a curious whine, which, yes you guessed it was the toothed wheel grinding down the speed sensor. There is actually a fair bit of adjustment available in the holes on the bracket.

That sounds like just the kind of info i need to not cause even more hardship on the rebuild!! God don't you just love this site!!!cheers bhpjon

[bhpjon]

mick_coupe said:

Its the speedo sensor ! Mick

Thanks mick, next question , where do i fit it back please? Do i have to remove the centre console?

[v8sag]

If you want a low milage car,leave it off,not that i'd do a thing like that...

[bhpjon]

v8sag said:

If you want a low milage car,leave it off,not that i'd do a thing like that...

Nice idea, but does that mean you lose speedo and milometer?

[v8sag]

Yes sir
Buy a radar detector with built in GPS speedo,you'll then realize youv'e been driving under the speed limit by atleast 10mph since having the car..

[toon tvr]

v8sag said:

Yes sir Buy a radar detector with built in GPS speedo,you'll then realize youv'e been driving under the speed limit by atleast 10mph since having the car..

I 2nd that, I've found the variance to be between 6-10mph using a Navman system.