'73 MFI Hose configuration

[Rslevin]

I am putting a '73, 2.4L MFI engine together and need some help wiht the hose configuration. I have all the shop and parts manuals, but no where can I find where all the hoses go. Specifically:
1. the MFI thermostat has 2, 25mm hose openings. The front goes to the sheet metal and then to the heat exchanger. But where does the back go (angled towards the rear of the engine)?
2. The two oil tank 25mm hose connections - The engine breather (center of engine next to the thermostat and oil pressure sender) goes to one of the oil couplers, whch one? And, where does the other go?
3. The engine cooling shroud has a 12mm connection back of the fan housing. Where does that go?
4. I have two 12mm emissions lines coming from the front of the car (from the charcoal canister through the hard lines in the car to the engine compartment). Where do these go?
5. The air cleaner has three connections, one is a 6mm on the bottom. The other is a two way with one smaller end ( I think it is 8mm, but neglected to measure it). The other end has the backfire suppressor and is 25mm.

Is there a good diagram somewhere I can look up? Or if anyone has photos that would surely help as well. Any help is appreciated. Thanks, Rich

[jrbennett]

I'm going from memory but...

1. heat exchanger/sheet metal to the top of the MFI t-stat, bottom of t-stat is open
2. one hose from engine breather to oil tank, other one on tank to connection on air box. Not sure which is which, will meed to look at my car
3 & 4. I think the fan housing connection goes to the carbon canister, the other one not sure
5. not sure but my guess is 6mm is a water drain, medium size from canister, large one (25mm) from oil tank

maybe the parts diagrams will help you

[jrbennett]

here's a link to the parts catalogue

http://www.porsche.com/all/media/pdf/originalparts/en/E_911_73_KATALOG.pdf