Spit Mk3 ignition light stays on.

[SpitfireGeorge]

Hi Guys,

When I switch on the ignition both the oil and ignition warning lights come on. When the engine is running both go out. When I switch off and remove the keys the ignition light comes on! 

I fitted a new loom as part of the car rebuild.

Any ideas?

Cheers 

Brett

[Pete Lewis]

is this with dynamo or alternator  ???

Pete

[johny]

All I can think is that the ignition light wire is connected to a permanent live instead of the ignition switch so it would go out on starting as the dynamo/alternator generates but otherwise be lit all the time. The error could even be on the back of the ignition switch where the ignition light wire has been pushed onto a terminal 1 spare spade instead of the one for terminal 2...

[SpitfireGeorge]

Thanks Pete and Jonny for the replies.

Dynamo.

I will check the ignition switch.

Thanks again

Brett

[SpitfireGeorge]

Hi Guys, 

Checked the ignition switch and I have 4 white wires, 5 with the OD one, not 3 as per the mk3 wiring diagram.

Ran engine and when I turned it off at the switch the engine would not stop! Had to disconnect the earth at the battery.

Further investigation required I think!

Cheers,

Brett

 

[johny]

This has worsened then, before you could actually turn off the engine couldnt you?

[SpitfireGeorge]

Certainly could. Suspect it must have a resistor like a mk4 loom making the 4th white wire.