Capri/mk 2 Escort Fuel Sender

[Guest Steve Allen]

Hi does anyone have a Capri or Mark 2 escort fuelsender unit. i have changed over to Capri clocks after fitting a brand new Sierra Sender gauge, Now my gauge is always showing empty. any advise welcome onwhat will do the job.i.e can a variable resistor be put in and what type if so.

Thanks

[niduncan]

I used to have capri clocks with a sierra sender in my hood.

 

The sierra sender unit I used (1983 vintage) has 3 sensor built into it. There are 3 terminals on the socket, the following are measured (in ohms) from each one individually to earth.

 

______Pin1___Pin2____Pin3

MIN----161------36------1372

1/4------92------78

1/2------55-----110-------180

3/4------27-----165

MAX-----19-----195-------179

 

Pin 2 is nearest the earth post, Pin 1 is furthest away.

 

I used Pin 1 and the guage indicated OK but it was not linear.

 

I think Pin 3 is used for low fuel warning lamp.

 

Does your new sierra sender have 3 sensors?

 

If you put the sender wire directly to earth the gauge should indicate full, if not then check wiring to gauge or could be a duff guage.

 

Nigel.

[Guest Steve Allen]

Nigel

My sender is froma 89 sierra.thinkit only has two senders.it does read full when earthed out but with the tank full of fuelit only just goes above the red.

Steve