Qu'est-ce que c'est?

[NorthernThrux]

A brass pipe sticking out by the side of the oil cooler air shroud on a 1973 911S. Should it have a vent hose going somewhere?

[Richy]

A hose connects to that fitting and to an 8 mm tube at the bottom of the air filter housing . It's a drain for condensed oil vapor . It's not brass but yellow chromated zinc .

[NorthernThrux]

Thanks. Any idea what the part number is or what the finish is (fabric, rubber?) and whether there are clamps on that hose?

I assume the 12 mm ID hose from the charcoal canister goes to the Tee shaped vent thingy on the back of the airbox. What goes on or in the bigger end of that Tee? Hose to the oil tank or breather on its filler neck?

[NorthernThrux]

No one can tell me what kind of hose goes from the metal insert nipple on the airbox to the nipple I had indicated?

As you can imagine it's not a place people take many photographs. Or at least the part number could help?

Ravi

[72t4tom]

the drain hose from the air cleaner to the pipe is cloth

the large end should have a mesh filter inserted

[beh911]

Same cloth braided hose you highlighted earlier. No clamp.

Three hoses total back there. One to tank, one to charcoal fuel vapor recovery system in front of car. That’s the T. The one at the belly of air filter housing is as Richy describes

[NorthernThrux]

Thank you both.

There are two large ports on the oil tank. One on the tank and one on the filler neck. I assume one of these goes to the crankcase vent on top of the engine and the other ?? Maybe to the big end of the Tee with the flame arrestor?

Ravi

[Richy]

Hose in first post is cloth braided 7 or 7.5 mm fuel line . Large breather hose from T on back of the air filter housing goes to the oil tank filler neck . A breather hose connects to the crankcase vent and the port on the oil tank .

[NorthernThrux]

Super helpful everyone. Looking forward to getting all these hoses installed, clamped and buttoned up.

Ravi