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09-29-2015, 07:52 AM | #1 |
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1939 Deluxe mystery wire
Out of the cowl harness is a yellow/black wire with a closed end that attaches somewhere. It is a "'hot wire" See pics..
Images of the generator and solenoid wiring may be helpful as you ponder. Thanks! Phil |
09-29-2015, 08:28 AM | #2 |
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Re: 1939 Deluxe mystery wire
Isnt there a cable missing on the oilpressure sender in the pic...
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09-29-2015, 09:58 AM | #3 |
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Re: 1939 Deluxe mystery wire
36
Could that wire be BG, if so it will power the oil. temp and fuel gauges. It would be coming from the IGN switch. Bruce
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09-29-2015, 11:51 AM | #4 |
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Re: 1939 Deluxe mystery wire
The wiring diagram shows a yellow black wire leading from the junction of the black wire from that connects the battery to the charging circuit, with the other end feeding the ignition switch.That junction also connects to a large yellow wire that leads to the ammeter.
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09-29-2015, 12:04 PM | #5 | |
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Re: 1939 Deluxe mystery wire
Quote:
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09-29-2015, 12:06 PM | #6 |
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Re: 1939 Deluxe mystery wire
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I dont se a horn setup might be for that... |
09-29-2015, 12:08 PM | #7 |
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Re: 1939 Deluxe mystery wire
I agree Mr. Murre.....Looks like the horn wire to me.....
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09-29-2015, 01:26 PM | #8 |
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Re: 1939 Deluxe mystery wire
My '39 CS is a DeLuxe, with the voltage regulator, it has a yellow/Black wire coming from the harness and going to the Armature post on the voltage regulator however, the OEM style harness I installed, looks different from the one in your photos.
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09-29-2015, 08:36 PM | #9 |
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Re: 1939 Deluxe mystery wire
Does your oil pressure gauge work with that wire disconnected? I think the wire goes to oil pressure switch.
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09-30-2015, 07:06 AM | #10 |
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Re: 1939 Deluxe mystery wire
I think Vic has it. That wire looks like the VR wire because it is thicker than a sending unit wire.
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09-30-2015, 07:29 AM | #11 |
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Re: 1939 Deluxe mystery wire
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09-30-2015, 07:33 AM | #12 |
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Re: 1939 Deluxe mystery wire
I thought the oil pressure sending unit provided a variable ground to the gauge. Seems that hooking a "hot" wire to the sender would be a direct short. JMHO
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09-30-2015, 08:33 AM | #13 |
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Re: 1939 Deluxe mystery wire
The wire to the sender is live if tested with a voltmeter.
If its a KS its pretty close to batteryvoltage to. |
09-30-2015, 09:16 AM | #14 |
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Re: 1939 Deluxe mystery wire
'39 schematic shows BY wire from sender to panel gage which is fed by switched BG wire.
Looks like it goes to oil sender which is obviously devoid of a wire in your picture.
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09-30-2015, 09:44 AM | #15 |
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Re: 1939 Deluxe mystery wire
Show a picture of the voltage regulator. Does it have all the proper wires? That loose wire is large and for heavy current. I think it either should go to the vr or it belongs under the dash and someone pulled it through the firewall.
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09-30-2015, 09:53 AM | #16 |
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Re: 1939 Deluxe mystery wire
I Agree With Deuce _ Roadster
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09-30-2015, 10:38 AM | #17 |
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Re: 1939 Deluxe mystery wire
The ground end (sender terminal) of a gauge will show voltage unless grounded. Does the wire in question show voltage only with the ignition on, or all the time?
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09-30-2015, 10:46 AM | #18 |
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Re: 1939 Deluxe mystery wire
A little feedback from the source should be nice....
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09-30-2015, 10:57 AM | #19 | |
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Re: 1939 Deluxe mystery wire
Quote:
Mainly because the terminal end is closer to the camera giving that illusion. Make a comparison to where the wire is closest to the sending unit.
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09-30-2015, 03:17 PM | #20 |
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Re: 1939 Deluxe mystery wire
We believe the wire does goes to the oil pressure sender. It only has current with the ignition on. The schematic in post 14 shows a BY color wire but the wire in Phil's harness appears to be more YB which may have led to our confusion. The Voltage Regulator has the correct wires and the car did start prior to installation of a crab distributor. We are working on new plug wires as time permits and haven't been able to verify that the oil pressure gauge works. Thanks to everyone that has responded and Phil will provide an update once the plug wires are installed and the resistance checked. We live in separate towns and don't get to work on Phil's car as much as possible. Bob
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09-30-2015, 03:38 PM | #21 |
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Re: 1939 Deluxe mystery wire
THAT BLACK AND YELLOW WIRE ON MY 39 PKUP. GOES TO THE OIL PRESSURE SENDER THIS IS A TYREE MADE HARNESS I AM USING . sunshine
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09-30-2015, 07:10 PM | #22 |
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Re: 1939 Deluxe mystery wire
my 39 pkup. this wire goes to the oil pressure sending unit. I am using a TYREE wire harness SUNSHINE
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10-01-2015, 07:00 AM | #23 |
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Re: 1939 Deluxe mystery wire
One could look under the dash and see what color the wire is on the oil gauge.
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10-01-2015, 09:23 AM | #24 |
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Re: 1939 Deluxe mystery wire
I'm about to head up to Phil's house and hopefully we can resolve this. bob
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10-01-2015, 12:36 PM | #25 |
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Re: 1939 Deluxe mystery wire
Thanks to all who weighed in the mystery wire. It was the wire to the oil pressure switch which now works after we got it started. Cecil had an excellent tip in checking which color wire was attached to the gauge under the dash.
Phil |
10-01-2015, 12:50 PM | #26 |
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Re: 1939 Deluxe mystery wire
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10-01-2015, 01:42 PM | #27 |
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Re: 1939 Deluxe mystery wire
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