Wiring up a reverse motor

[Johnnybizzle]

HI guys,

can anyone tell me how to wire up a starter motor that im using for a reverse and the lamp at the back to come on at the same time via a rocker switch on the dash

any help much appreciated

regards Jon

[twinturbo]

Big fat +12 from the battery to the main terminal on the starter, then a wire from the small sollenoid terminal to you switch, and from the other side of the switch to an ignition live supply.

You will probably want some sort of inhibit circuit to prevent operation when the gearbox is not in neutral, and to disable the circuit if the clutch is pressed or gear selected.

TT

[Johnnybizzle]

Cheerz TT

will the motor be earthed by being bolted to chassis or will it need a seperate wire?

[twinturbo]

Bolting to chassis should earth it.

TT

[flyerncle]

Put a seperate braided earth on just in case and as TT says fit a relay to the solenoid feed that isolates it from everything unless its in neutral and dont forget to include the handbrake switch.
Personally I would use a press button switch and not a rocker switch as this would allow you more control in reverse, as you know dipping the clutch wont stop it. May save embarrasment/damage at a later date.

I have worked on many "kit cars" (Lotus/TVR/etc) over the years and relying on chassis earth is somtimes not too reliable.

[twinturbo]

Originally Posted by flyerncle

as you know dipping the clutch wont stop it. May save embarrasment/damage at a later date.

It's why I sugest a switch on the clutch, it's instinctive way to control reverse.

In fact a clever soul could connect up a sensror and build a circuit to control the motor via the clutch

TT