Missing air cleaner parts and connections

Missing air cleaner parts and connections

Thanks, TylerW! Couple more questions...

TylerW said
You are probably thinking of the thermostatic vacuum switch that was mounted in the radiator and controlled the vacuum flow to the EGR valve depending on coolant temp. Easy to confuse:D. Later on that switch migrated to the cylinder head.

I actually had that switch on my radiator and didn't know what it was either. Swapped in a new radiator last week and threw it out with the old radiator. Hope that wasn't a mistake.

TylerW said
That's the OSAC valve. In everyday terms, it's a delay valve for the spark advance signal to the distributor. One side is labeled CARB and connects to the carb, the other is marked DIST and connects to the advance on the distributor.

I normally try to keep things original but that was a poor idea to try to reduce emissions.

So it's OK if I just cap those off? The only thing I have left on the car is the charcoal canister and EGR valve. I have the vacuum amplifier valve but I don't know if it works or not, it was in the trunk when I got her.

TylerW said
Then, flip the air cleaner base over so you see the bottom. There's two vacuum nipples there side by side. That's the thermostatic temperature switch that permits or cuts off vacuum to that flapper depending on the temp in the air cleaner. Cold, vacuum flows and shuts the door, Hot, the vacuum stops and the door stays open.

Anyway, one line runs from that valve to the flapper door in the snorkel. The other runs to a vacuum source at the carb.

Would that be "ported" vacuum?

TylerW said
First, as mentioned, you are missing the carburetor pre-heat valve on the air cleaner.

Don't suppose that's available as a replacement part anywhere without having to find a whole air cleaner? Got a part number? I see a lot of similar parts on the web.