Technical Speedometer cable thread at the gearbox

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Technical Speedometer cable thread at the gearbox

Yes it would have to be total trial and error, if I don't know what the default setting is I've no chance. By that for instance I mean the centre of the sensors needs to be 200mm from the centre of the wheel for it to work as per its calibrated setting...…


I don't like trial and error on expensive parts.....meaning the car not the speedo...…...The struts and hubs still make my eyes water cost wise....
Thinking about it, it shouldn't matter where on the wheel you put the sensor, you will always get one pulse per wheel revolution.
What needs to happen is the speedo needs to be adjustable to accept differing numbers of pulses to register any given distance!.
 
Thanks Tom. My strange appliance is no problem. All the gubbins are in the sealed unit attached to the gearbox.
Peter, I don't know how the sensor for your particular unit has to be located,but for the Smiths electronic speedo, the sensor (EMP34-1) can be bracket mounted, and as long as the bolt heads are equidistant (as they are on the 500/126 drive-shaft couplings) it will read off a prop-shaft or drive-flange coupling. The air-gap has to be 2.0mm.
 
Thinking about it, it shouldn't matter where on the wheel you put the sensor, you will always get one pulse per wheel revolution.
What needs to happen is the speedo needs to be adjustable to accept differing numbers of pulses to register any given distance!.


Pete this is true but with out either A, a dimension from centre to fit the sensor or B, any instructions on how to adjust the unit is pretty much worthless...…


I have pretty much stripped the unit down to see if there is any way to calibrate it but cannot see anything...
 
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