What is the head lamp relay valve on a corvette?
What is the head lamp relay valve on a corvette?
HEAD LAMP RELAY VALVE DESCRIPTION: Disk shaped steel with an internal diaphragm attached to a black plastic shaft. The upper steel housing has one small metal port connected to a small whitevacuum hose. The black shaft has 3 vacuum ports connected to large vacuum hoses.
What makes the headlights open and close on a corvette?
It takes vacuum to open them and vacuum to close them. Under the nose of the car you will find the “actuator relay” which is the valve that controls the opening and closing of them. The center hose is the supply hose and it must be plugged onto the valve for the headlights to close.
How to repair a headlight vacuum system in a corvette?
Hold the shaft firmly in place below the threads and twist off the receiver. It is a good idea to count the number of turns it takes to remove the receiver nut. This way you will be able to return it to the same place on the actuator rod. 07: Carefully remove the rod dust shield.
Where does the vacuum go in a corvette?
The big center hose going to your actuator relay valve is “HOT” all the time as it’s connected to your vacuum tank. “At rest” vacuum is going through the center port of the actuator relay valve and then to the rear of the pots (keeping the headlight doors closed).
HEAD LAMP RELAY VALVE DESCRIPTION: Disk shaped steel with an internal diaphragm attached to a black plastic shaft. The upper steel housing has one small metal port connected to a small whitevacuum hose. The black shaft has 3 vacuum ports connected to large vacuum hoses.
Hold the shaft firmly in place below the threads and twist off the receiver. It is a good idea to count the number of turns it takes to remove the receiver nut. This way you will be able to return it to the same place on the actuator rod. 07: Carefully remove the rod dust shield.
Where can I repair the headlight wiper on a corvette?
If you need to repair your Corvette’s entire vacuum system instead of just the headlight/wiper door system, you can get a complete Corvette Vacuum System Overhaul Kit from Zip Corvette Parts, which includes all hoses and connectors for the entire C3 Corvette.
Why is the vacuum not working in my Corvette?
The end with the single port should not maintain vacuum pressure and you should not be able to blow air into this port. A leaking check valve may cause the headlamps to open when the engine is turned off; but this depends on the condition of the rest of the headlight vacuum system.
