Quote:
Originally Posted by 350TSS
Help required
1. The oil pressure switch remains a challenge. It effectively is an OFF switch which goes to earth through the clutch casing. When connected it blows the fuse, unsurprisingly as the single lead powering it is fed from the switched circuit from the ignition. I really want a double pole insulated oil pressure switch so that I can run power to it and the switch works when the oil pressure is OK and switches off the light on the instrument panel. I have spent some time searching the internet but cannot find one with 2 poles. I considered adapting a brake hydraulic switch and even obtaining a small pressure gauge and mounting it down on the clutch casing. It is not vital so a solution will emerge - I am currently favouring the gauge idea as it gives better information than a light which is not on when a preset minimum pressure is at the base of the switch.
All suggestions gratefully received
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Try wiring up the Oil light another way:
Power to the bulb
earth from the bulb to the P Switch.
With power on the bulb should be lit. Once there is oil pressure the switch unmakes breaking the circuit putting the light out.
Similar with the Neutral Light
regards
Howie