SGT40 - Driveshaft Sensor Help Requested

[Jay Gadsby]

Reassembly of car following Quaife gearbox swap.
The car has fuel injection.

There's a bracket holding a sensor that looks like it was fitted to the gearbox (r/h side) offside receiving info from the driveshaft.
But, it doesn't seem clear as to how it was previously fitted.

It's a long shot but does anyone have any illuminating suggestions as to how it should be located.

Photo shows the "Z" shaped bracket and sensor.
The mocked up position seems to have the sensor too far away from the driveshaft.

 

[DaveM]

My guess is you need to orient the sensor toward the allen bolt heads with a gap between .010" and .025".

 

[Jay Gadsby]

My guess is you need to orient the sensor toward the allen bolt heads with a gap between .010" and .025".

Thanks for that.

 

[Daniel Lorenz]

I second that statement.

 

[Jean-Marc]

Me too, you shall be perpendicular to the bolt axis and at the distance that Dave mention.

 

[Jerry Irwin]

Me too, you shall be perpendicular to the bolt axis and at the distance that Dave mention.

Looks like you just need to tweak the bracket a bit to give correct distance..
Jerry

 

[Andy Green]

Hi Jay,
That's the sensor for the electronic speedo and can run up to 1.0 mm clearance. The bracket just tweaking
Rgds,
Andy

 

[Paul W]

LED Inductive Speedometer Sensor from Merlin Motorsport

Caerbont Speedometer sensor from Merlin Motorsport. Phone, buy online or visit our showroom at Castle Combe Circuit

www.merlinmotorsport.co.uk

 

[Jay Gadsby]

Thanks everyone for the conclusive collective response.
The car is back together and had a shake down this afternoon.
From the construction of the bracket and washer marks it's looking like it has always been like that - 50mm from the socket cap screws and not 1mm

It'll need a new bracket making to properly rectify the problem.

The speedometer has always been accurate until around the 100mph mark.
The few times I looked down on the Mulsanne it was zero.

I've just swapped an early Quaife gearbox for the latest version and there are one or two minor differences in casing design that needed a bit of adaption but overall it was straightforward - and just in time for the Members Meeting 82 this weekend.