68 washer pump question
Team Owner
Joined: Aug 2000
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From: Massillon,Ohio USA
2020 C3 of the Year Finalist - Unmodified
Cruise-In VI Veteran
St. Jude Donor '08-'09-'10-'11-'12
...don't know if you're including the pump part too, but '68's were a one year only washer pump/wiper motor set-up that had an extra wire.
Race Director
Joined: Nov 1999
Posts: 10,643
Likes: 8
From: Foxfield CO 1970 Convertible
The 68s were wired to have power continuously to the motor until the wipers are closed - even if the key is off. I guess this resulted in burned out motors when things were slightly out of adjustment. The following year the motors were wired differently... 
Thread Starter
Burning Brakes
Joined: Sep 2005
Posts: 1,044
Likes: 33
68 Corvette washer pump
Originally Posted by Z-man
The 68s were wired to have power continuously to the motor until the wipers are closed - even if the key is off. I guess this resulted in burned out motors when things were slightly out of adjustment. The following year the motors were wired differently...
Thread Starter
Burning Brakes
Joined: Sep 2005
Posts: 1,044
Likes: 33
68 Corvette washer pump
Originally Posted by Paul Borowski
...don't know if you're including the pump part too, but '68's were a one year only washer pump/wiper motor set-up that had an extra wire.
Drifting
Joined: Nov 2001
Posts: 1,469
Likes: 6
From: 68 427 4.11s Roadster
68 completely reversed the wiring from normal. Power- battery plus is ground, its on all the time. Ground- battery negative is the control wires. All those wires are basicly ground wires not positive.
You would have to study the wiring diagrams for both to make sure it worked. I don't think it will.
The 68 apparently don't have a park safety switch for the door/wiper, I assume the park system internal to the motor is the exterior park switch the other years have.
If being accurate isn't too important you could get a washer pump, external self powered, and plumb it to the bottle and wire it to the motor. They don't cost much. You could even find one in the junk store that has it mounted to the bottle.
You would have to study the wiring diagrams for both to make sure it worked. I don't think it will.
The 68 apparently don't have a park safety switch for the door/wiper, I assume the park system internal to the motor is the exterior park switch the other years have.
If being accurate isn't too important you could get a washer pump, external self powered, and plumb it to the bottle and wire it to the motor. They don't cost much. You could even find one in the junk store that has it mounted to the bottle.
Thread Starter
Burning Brakes
Joined: Sep 2005
Posts: 1,044
Likes: 33
68 Corvette washer pump
Originally Posted by Techno
68 completely reversed the wiring from normal. Power- battery plus is ground, its on all the time. Ground- battery negative is the control wires. All those wires are basicly ground wires not positive.
You would have to study the wiring diagrams for both to make sure it worked. I don't think it will.
The 68 apparently don't have a park safety switch for the door/wiper, I assume the park system internal to the motor is the exterior park switch the other years have.
If being accurate isn't too important you could get a washer pump, external self powered, and plumb it to the bottle and wire it to the motor. They don't cost much. You could even find one in the junk store that has it mounted to the bottle.
You would have to study the wiring diagrams for both to make sure it worked. I don't think it will.
The 68 apparently don't have a park safety switch for the door/wiper, I assume the park system internal to the motor is the exterior park switch the other years have.
If being accurate isn't too important you could get a washer pump, external self powered, and plumb it to the bottle and wire it to the motor. They don't cost much. You could even find one in the junk store that has it mounted to the bottle.
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