scissorhands

I'm reinstalling a carbed 13B and it's got two tubes coming off the oil fill neck. Previously, these were just open and uncapped, and some oil would come out, with no other problems. I am hoping to route them back to the intake manifold, probably with a PCV valve inline like on many other cars. My question is: why are there two of them? What do I do with the other tube?

diabolical1

iTrader: (3)

welcome to the board.

what year/vintage is the engine? i'm at a loss because i can't think of any 13Bs that had two nipples on the filler neck itself. do you have a photo?

Porutac

Not OP but the 12a in my '83 FB had two fittings. One on the filler neck and one in the cast center iron maybe 2" below. I capped the lower one off and attached the PCV to the upper fitting.

Cookboy

iTrader: (10)

The lower one connects to the charcoal canister. The upper to vacuum to ventilate moisture. To mani with a pcv is how mine is as well.

Porutac

That makes a lot of sense. Thanks for the the clarification.

diabolical1

iTrader: (3)

yeah, that's what i'm familiar with as well. however, i've been around long enough to try not to take certain things for granted when someone asks certain questions, so i just wanted him to clarify is all. there are some parts out there that i've never laid eyes or hands on and i like to try to keep that in mind.