Fuel tank missing hoses & missing parts - Questions Options

[PaIsa]

I know I am missing some parts & hoses on the fuel tank for our 1972 914 (1.7L with carb).

I don't have any hoses of any of the three nipples on the expansion tank. I don't have a carbon canister and I am sure I am missing others hoses. I don't have a clear understanding as to where hoses should be connected to.

I guess that the expansion tank nipple(s) are to be connected to the carbon canister, but looking at some sketch found on the web, 2 nipples seem to be connected together and seem to go down as a drain. The one near the filler neck seems to be the one connected to the canister. Is it like this?

For the carbon canister, the sketch shows 2 hoses that I assume have to go to the back of the car to sent the fumes in the air intake. Probably a stupid question, but why 2 hoses? Also, being on carb, where should I sent these hoses to?

Anyone has a good sketch showing the schematic of these hoses for a carb engine?

Thanks

[914werke]

While you can replace the charcoal can & lines for the vapor recovery, you said your car has carbs. You need to plumb them to containing collect & burn those fumes.

[PaIsa]

While you can replace the charcoal can & lines for the vapor recovery, you said your car has carbs. You need to plumb them to containing collect & burn those fumes.

From the search I have done and some sketch I have seen, my understanding is that the charcoal canister is ventilated using air coming from the cooling fan and the outlet of the canister is sent back to the engine to be burn. So I found answer to my question as to why 2 lines going from the front to back.

Being on carb, I guess I would have to send the outlet of the charcoal can into the air filters of the carb so that the fumes make there way to the intake. Would that work?