Quote:
Originally Posted by 1931 flamingo
Thank you V8COOPMAN. The generator has two studs, can't discern any markings. One stud is larger than the other and is at the rear, the smaller stud is on the side. The regulator is marked ARM, Field, BAT just like the one it replaced.
It motors with enough force to turn the engine over.
The car had been running fine since the same marked regulator was replaced last year.
Problem started with just the generator humming/slight vibration but steadily got worse. I'm not a wiring guru.
Paul
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OK Paul, so far....so good. There are TWO basic types of charging circuits....Type "A", and Type "B". This is determined by the generator itself, as well as the voltage regulator type.
Fords of that vintage should be of the "B" type. I BELIEVE that "B" type regulators have three terminals marked as yours is...ARM--FLD--BAT.
Your wiring connections should look as below.
NOW Paul .....Some things you need to realize. You said that your regulator started-out VIBRATING/HUMMING. That MAY be as a result of NOT polarizing a new generator or regulator
BEFORE starting the engine initially.
I'm thinking that you POSSIBLY may have already done some harm to that new regulator, but possibly NOT. But, it needs to be properly polarized. Before we go ant farther, you MUST verify that YOUR wiring connections resemble that diagram above, or the UPPER HALF of colored diagram BELOW.
BIG wire between BIG lug on REAR of generator and "ARM" on regulator.
SMALLER wire between SMALL lug on SIDE of generator and "FLD" on regulator.
LARGER size wire from BATTERY or SOLENOID connection, POSSIBLY through ammeter, and on to "BAT" on regulator.
The
UPPER HALF of this diagram (BELOW) shows about what your connections should look like....
NEG BAT post if POS GROUND. You MAY, or MAY NOT have that separate GROUND WIRE.
Now, with ALL wiring connections verified, let's attempt to polarize.
First, remove the BATTERY CABLE connection at POS BATTERY post. This will take any power off of regulator, like starting from scratch.
Now, re-attach CABLE to POS BATT post.
DO NOT turn key on! DO NOT crank engine!
CAREFULLY, remove the "FLD" wire from terminal on regulator. DO NOT let it touch any metal surface.
Carefully, take the end of "FLD" wire and briefly TOUCH it to the "BAT" terminal on VOLTAGE REGulator. Do that a couple of times. You should see a slight spark each time.
Now, carefully re-connect the "FLD" wire to the "FLD" terminal on voltage regulator.
PLEASE...Follow these directions explicitly, and IN ORDER!
__________________________________________________ ______
Now, crank-up your engine and tell us what your results are. Hopefully, all will be normal. If NOT normal, it's likely that your regulator (or generator) is damaged internally.
ANY TIME you work on GEN or REGULATOR circuits, you MUST re-polarize. It also won't hurt to re-polarize any time BATTERY is disconnected from circuit.
What do ya think, Paul? DD
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