70 wiper door
Thread Starter
Racer
Joined: Jun 2007
Posts: 291
Likes: 6
From: Delray Beach FL
70 wiper door
I am trying to track down why my wiper door has never worked. My question is what activates the vacuum to the door. I see on the Wilcox diagram the electric solenoid which looks like it activates the headlight what activates the wiper door?
http://repairs.willcoxcorvette.com/c...uum-schematic/
http://repairs.willcoxcorvette.com/c...uum-schematic/
Team Owner
Joined: Sep 2006
Posts: 31,274
Likes: 4,366
From: Westminster Maryland
Hi Tec,
The wiper switch on the dash sends the electrical signal to the wiper door solenoid valve switch mounted on the back of the tachometer housing which controls the vacuum signal to the wiper relay valve which sends the vacuum to the 'open' side of the wiper door actuator.
When the wiper door is fully open the wiper door relay switch completes the electrical circuit to the wiper motor and the wipers start to sweep.
Regards,
Alan
Because of the way the vacuum hoses are run to/from the solenoid switch and wiper door over-ride, pulling the wiper door over-ride opens the door WITHOUT the electrical signal from the dash wiper switch. BUT, the wipers don't start to sweep...because the switch is still off.
The wiper switch on the dash sends the electrical signal to the wiper door solenoid valve switch mounted on the back of the tachometer housing which controls the vacuum signal to the wiper relay valve which sends the vacuum to the 'open' side of the wiper door actuator.
When the wiper door is fully open the wiper door relay switch completes the electrical circuit to the wiper motor and the wipers start to sweep.
Regards,
Alan
Because of the way the vacuum hoses are run to/from the solenoid switch and wiper door over-ride, pulling the wiper door over-ride opens the door WITHOUT the electrical signal from the dash wiper switch. BUT, the wipers don't start to sweep...because the switch is still off.
Last edited by Alan 71; Jan 18, 2018 at 12:36 PM.
Instructor
Joined: Aug 2017
Posts: 180
Likes: 24
From: Jacksonville Florida
Hi Tec,
The wiper switch on the dash sends the electrical signal to the wiper door solenoid valve switch mounted on the back of the tachometer housing which controls the vacuum signal to the wiper relay valve which sends the vacuum to the 'open' side of the wiper door actuator.
When the wiper door is fully open the wiper door relay switch completes the electrical circuit to the wiper motor and the wipers start to sweep.
Regards,
Alan
Because of the way the vacuum hoses are run from/to the solenoid switch and wiper door over-ride, pulling the wiper door over-ride opens the door WITHOUT the electrical signal from the dash wiper switch. BUT, the wipers don't start to sweep.
The wiper switch on the dash sends the electrical signal to the wiper door solenoid valve switch mounted on the back of the tachometer housing which controls the vacuum signal to the wiper relay valve which sends the vacuum to the 'open' side of the wiper door actuator.
When the wiper door is fully open the wiper door relay switch completes the electrical circuit to the wiper motor and the wipers start to sweep.
Regards,
Alan
Because of the way the vacuum hoses are run from/to the solenoid switch and wiper door over-ride, pulling the wiper door over-ride opens the door WITHOUT the electrical signal from the dash wiper switch. BUT, the wipers don't start to sweep.
Thread Starter
Racer
Joined: Jun 2007
Posts: 291
Likes: 6
From: Delray Beach FL
Makes sense to me. Thanks for you held
Hi Tec,
The wiper switch on the dash sends the electrical signal to the wiper door solenoid valve switch mounted on the back of the tachometer housing which controls the vacuum signal to the wiper relay valve which sends the vacuum to the 'open' side of the wiper door actuator.
When the wiper door is fully open the wiper door relay switch completes the electrical circuit to the wiper motor and the wipers start to sweep.
Regards,
Alan
Because of the way the vacuum hoses are run to/from the solenoid switch and wiper door over-ride, pulling the wiper door over-ride opens the door WITHOUT the electrical signal from the dash wiper switch. BUT, the wipers don't start to sweep.
The wiper switch on the dash sends the electrical signal to the wiper door solenoid valve switch mounted on the back of the tachometer housing which controls the vacuum signal to the wiper relay valve which sends the vacuum to the 'open' side of the wiper door actuator.
When the wiper door is fully open the wiper door relay switch completes the electrical circuit to the wiper motor and the wipers start to sweep.
Regards,
Alan
Because of the way the vacuum hoses are run to/from the solenoid switch and wiper door over-ride, pulling the wiper door over-ride opens the door WITHOUT the electrical signal from the dash wiper switch. BUT, the wipers don't start to sweep.
Le Mans Master
Joined: May 2003
Posts: 8,877
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From: Fernandina Beach FL
2023 Restomod of the Year finalist
2020 C3 of the Year Winner - Modified
wow- the the "related thread" function -is not so great- didn't mean to post here....
Last edited by Richard454; Aug 16, 2018 at 11:39 PM.
Le Mans Master
Joined: May 2003
Posts: 8,877
Likes: 3,556
From: Fernandina Beach FL
2023 Restomod of the Year finalist
2020 C3 of the Year Winner - Modified
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Last edited by a striper; Dec 3, 2018 at 03:25 PM.