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What does this do??

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Old Dec 3, 2017 | 03:58 PM
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Default What does this do??


decide to pull my cluster to change some bulbs and found this on the side of my tach. No plug going to it or vacuum line. Any ideas ??

btw the car is a 70

thanks
marty

Last edited by Tecdiverfl; Dec 3, 2017 at 04:00 PM. Reason: Forgot pics
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Old Dec 3, 2017 | 04:17 PM
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Do your wipers work? It is the the valve for one of the override switches.
You will get your answer soon . Lots of help here. In the mean time go to
The Willcox web site ther is lots of help there. Good luck
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Old Dec 3, 2017 | 05:34 PM
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Wiper door solenoid. The electrical connection would normally be energized by the wiper switch. This is an essential part of a complete and functional wiper door system. Do you still have a wiper door, and does it work?
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Old Dec 3, 2017 | 06:03 PM
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Has never worked from the day I bought the car. Where does do the input and output hoses go to
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Old Dec 3, 2017 | 06:48 PM
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The small vacuum hose at the check valve in the engine compartment goes through the firewall and connects to a "T". One side of the "T" connects to the headlight switch vacuum port closest to the pull **** on the switch. The other side of the "T" connects to the metal port on the electrical connection side of the solenoid.

There is a split plastic vacuum port on the other side of the solenoid. The port at a 90 degree connects to the port closest to the pull **** on the wiper override switch.


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Old Dec 3, 2017 | 08:40 PM
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Thanks need to do some searching in the dash for the t-port the car was a really well done frame off so my gut the t fitting popped off some place



Originally Posted by Dave J
The small vacuum hose at the check valve in the engine compartment goes through the firewall and connects to a "T". One side of the "T" connects to the headlight switch vacuum port closest to the pull **** on the switch. The other side of the "T" connects to the metal port on the electrical connection side of the solenoid.

There is a split plastic vacuum port on the other side of the solenoid. The port at a 90 degree connects to the port closest to the pull **** on the wiper override switch.


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Old Dec 3, 2017 | 10:18 PM
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Wilcox has the Vacuum diagram - clear and concise. They also have the wiper wiring diagram..
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Old Dec 3, 2017 | 10:59 PM
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You can find all wiper related post for a 1970 at this link:
http://repairs.willcoxcorvette.com/?...&s=wiper+motor





http://repairs.willcoxcorvette.com/1...-72-with-test/
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