Re: Off topic ford alternator question
Quote:
Originally Posted by koates
My first thoughts are you should repair overhaul the original alternator. Take it to an auto electrician for that job. The" ËXC" is for exciter which goes to the ignition switch, power when the switch is turned ON. The "S" is the sense wire so that the inbuilt voltage regulator can sense the battery voltage and allow the alternator to charge the correct rate. So in fact your two purple wires connected into one larger purple wire which has to be HOT which you say it is not hot, so make it hot and your alternator should work. There may be a warning light in that EXC wire so check to see if the bulb in it is OK. Follow the wiring along and find out why the connection at the terminal block is not getting hot. Look behind the dash panel at the ignition switch terminals or find a fuse box which might have faulty or corroded fuse connections. It is a boat and subject to damp conditions. Good luck, regards, Kevin.
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14.4 volts! A wire had fallen off of the ignition switch. Since all the diagrams of my type alternator showed the S terminal going straight to the battery and not through the ignition switch, should I run a separate wire from S to the battery? And wouldn't that be a short jumper wire from S to B+?
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Owner/Operator of 'Jailbar Ranch' on the side of Mt. Pickett. Current stable consists of 1946 1/2 ton pickup turned woodie wagon with FH V8, 1947 Tonner Pickup (red) mostly stock with exception of a cummins 6at turbo diesel, 1946 Tonner Pickup (green) with 226 cu in 6 cyl flathead, 1979 Toyota landcruiser wagon, completely encased in 1947 Ford Jailbar sheet metal. Ok, cornbinder rear fenders..... 'Rusty ol' floorboards, hot on their feet' (Alan Jackson)
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