Vacuum hose routing 69

[Jeff Allyn (37119)]

I have a 70 which appears to have 69 headlight components. It has one headlight actuator and 2 outlets on the reserve tank.

Can someone please describe waht color hose runs from where to where on the headlight or provide a diagram. Thanks

[Joe Lucia (12484)]

Re: Vacuum hose routing 69

Jeff----

I hope you have more than one headlight actuator. If you don't, then you've been driving with only a single headlamp. ALL 1968-82 Corvettes have TWO headlight actuators and REQUIRE two headlamp actuators. However, assuming that you're actually talking about the headlamp actuator VACUUM RELAY VALVE, that's another story.

I believe that very early 1970 Corvettes used the 1969 headlamp actuating system. This system used a tank with TWO fittings and a single vacuum relay valve. If the car is anything but an early car, then there must have been some "modification" or "grafting" that took place somewhere along the way for it to have the configuration you describe.

In any event, you need to follow the 1969 vacuum hose diagram. I can't provide such a diagram here, but you can find such information in the 1969 AIM or in commercially available vacuum hose charts. Dr. Rebuild has the absolute best ones available.

[Terry McManmon (3966)]

Re: Vacuum hose routing 69

Our research showed a single relay valve for the headlights in model year 1969 until about October 1, 1969, when the two relay valve system began. Jeff do you find any evidence that the front fiberglass has been changed?
I believe others on this board have reported that Doc Rebuild sells accurate vacuum hose diagrams.

[Joe Lucia (12484)]

Re: Vacuum hose routing 69

Terry-----

I may have had it reversed. I was thinking that early 70 used the 69 system. However, it may well have been it was late 1969 that used the 70 system.