[70RAlll]

Originally Posted by Bentwheelbob

So the air cleaner project is finished. I switched out air cleaners and am using one I restored previously. I'll go through the one I removed and ultimately reunite it with the Black Car. Thanks to a lot of assistance from the forum, I think I have it plumbed correctly. I know that it is working correctly. It's pretty cool to watch the flappers close up and then several minutes later reopen. I also have the new correct air cleaner decal in place, and of course PB's correct lid decal. Thanks to everyone for your assistance.

You still have me lost on your setup.. one of your flappers ,using this plumbing, will always be exposed to vacuum. The thermo switch only has a chance to regulate one of the flappers with this plumbing. everyone can shoot me down on this, but I still think you have it wrong. I think the clips on the underside of the snorkel only hold the hoses to the flappers, the vacuum hose went directly from the intake manifold vacuum source to one of the ports on the thermo switch. I think you have gotten tied up with trying to make everything sit nice and neat under the snorkel, when it didn't. How does the thermo switch regulate the flapper that is right next to your "t"?? when the engine warms up, what is going to interrupt the flow of vacuum to the 1st flapper??nothing as I see it..
This is how I think the vacuum hoses ran:
1st Thermo Switch Port:vacuum directly from intake to one port of thermo switch
2nd Thermo Switch Port: other port of the thermo switch to the "t"
Both Flappers: "T" to each flapper.

That is the only way the thermo regulates both flappers.