Please identify this part
- Thread starter jay1922t
- Start date
Drive Shaft Dave
Well-known member
It look's like a relay used to provide full voltage to the coil when starting.
1930-fordor
Member
Can't help much with the part number, but it makes me smile when I see wire connectors done the correct way��
Mike V. Florida
Well-known member
But it does not seem to be wired correctly as the resistor is never bypassed.
What kind of ignition switch do you have?
Are you using a starting solenoid along with the ignition switch?
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Tom Wesenberg
Well-known member
I agree.
I thought Dave was right about it being a bypass for the coil, and it still looks like that is what they intended, but they have the bypass on the wrong end of the resistor. Need a side view of the relay contacts, but it looks like it might have dual contacts, for both the OFF and ON positions.
Also, where is the wire that turns the relay on?
Mike V. Florida
Well-known member
This is NOT a wiring schematic. It is just to give an idea on what some of us think the intended purpose of the relay and what is supposed to happen.
When the key is in the start position the relay is closed and the 12 volts leaves the run side and goes directly to the coil giving 12 volts at the coil. Once the switch is released, the 12 volts does not go to the start terminal so the relay opens the the run voltage goes through the resistor.
When the key is in the start position the relay is closed and the 12 volts leaves the run side and goes directly to the coil giving 12 volts at the coil. Once the switch is released, the 12 volts does not go to the start terminal so the relay opens the the run voltage goes through the resistor.
Attachments
Looks like some sort of voltage regulator with a resistor drop from 12v to 6 v for the coil and the rest of the system. Do you have an alternator, or generator, and do you know the voltage output? Get a multi-meter and check voltages. There are no Model A part numbers for this because this is not a Model A part. If it works for you, let it be.
Dollar Bill
Well-known member
Sure looks like an additional point of failure to me....
Dick Steinkamp
Well-known member
Mike,
I'm not sure why you show a wire from the relay to the dizzy in your diagram. I think it should look something like this...
That aside, I know of no car that originally ran a ballast resistor that uses a relay in the "start only" 12V circuit to the coil. A relay is generally used to protect a switch from high current or in long wire runs and the 12V start only circuit has neither.
I think we are just guessing on the use of the relay without knowing the full schematic. The only wire we really know is the unattached grey wire the OP identifies as going to the coil...and we don't even know which side of the coil that is going to. We'll need to know "the rest of the story" to determine the use of the relay.
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BILL WILLIAMSON
Well-known member
Bought a '32 Coupe, with 2 1/2 miles of wire in it, ran well & everything worked.
Neatly re-wired it with about 50 Ft of wire, ran well & everything worked.
Why is Buster T. lookin' at me "FUNNY"???
Bill W.
Neatly re-wired it with about 50 Ft of wire, ran well & everything worked.
Why is Buster T. lookin' at me "FUNNY"???
Bill W.
Kurt in NJ
Well-known member
BILL WILLIAMSON
Well-known member
Those were trick, simple regulators. I've used them on MANY different makes of cars.
Bosch regulators are set for lower voltage, a Chrysler regulator pops it up to a TRUE 14.2 VOLTS!
Bill Trick
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