Water shut-off valve..

[Peer81]

Could somebody tell me why a new water shut-off valve still doesn't close compleetly? When it is under a vacuumload it should open but even without vacuum it's open a little. Is this normal or not? My old rusty one did the same and that's way I bought a new one.
Thanks!

Groeten Peter.

 

[Yellow81vette]

no reply since 08 ?

I'm working on that issue right now. Did you ever get yours working properly?

 

[6880 Mike]

Yallervette: Peer's post is from 2008.

 

[Peer81]

Hahaha, and I was thinking. Well a new topic in the L81 section. Is it my own topic otfl

But yes I did get it to work properly. Turned out the vacuumload in the vacuumline was to low to fully close the valve. Traced the problem back to the switch on top of the heaterbox (inside). A lever pushes against a vacuumswitch when the air temp lever is turned completely to cold. But the lever didn't push hard enough against the vacuumswitch to fully open it. I adjusted the lever and it works perfectly right now! I hope it helps, if not just let me know. But a little faster then after 6 years!

Greetings Peter

 

[Yellow81vette]

fixed it

My problem was bubba had installed a earlier model (up to 79) vacuum shutoff switch on the heater box. 80, 81, 82 switch is different. I called Dino Behler and he pulled me one. $25.00 shipped to me. If you can't find a part. Corvette Salvage | Used Corvette Parts C3 C4 C5 C6