The initial issue was with the Ignition/Oil pressure warning light. It comes on but only for a split second, then goes off even before I've hit the starter button! The car is showing charging on the ammeter, and with a multimeter across the battery it's definitely charging.
So, what's the problem? I hear you ask...
Well,,,,,
My car is a 65 FHC and as such the ignition warning light should in fact be an oil pressure light, but there is no switch in the block, and behind the rev counter is a 3AW warning light canister, with some home made wiring to it. The car has, at some point, been converted to the 3AW warning light system, but it doesn't work.....
So, I found the extra wire for the oil switch (someone had put both, sender and switch wire, on the 2 terminals on the oil pressure sender!) This wasn't an issue as I traced the other end of the wire to behind the speedometer, which had been cut off to accommodate the wire for the 3AW canister.
Attached is an image or two of the offending objects. The 3AW canister looks as though its wired correctly, an earth wire (which is now attached to a proper ground...
), a fused supply (white) and an ALT wire (blue) which ends up at the alternator of course. Now I do get how this works, the warning light bulb is grounded by the alternator when stationary, and as soon as it starts spinning the ground is broken, and the light goes out, simple.But as you can see from the photo, the blue ALT wire is actually piggybacked onto a red wire that goes to a separate terminal stand alone on the back of the alternator?
My if I disconnect that wire the car doesn't charge.....
My thoughts are that for whatever reason someone has switched this to a 3AW W/L set up, and either fitted a different alternator or wired it incorrectly?
HELP PLEASE!!!!
Steve.
