Mark in Japan

Hi Again!

I have an 09/82 Aussie 928S that I'm bringing back from the dead.

Can someone ID the following fuel parts (they are in line between the Centre Port of the Fuel Distributor, and the Inlet to the WUR)?

Also, they involve bloody Banjo fittings, which leak approx an inch over the left rear Spark Plug, which makes FIRE !!!

I will replace with braided line & "dash-X" fittings.
Can either of these be replaced/just left out?
What are the implications to running, in the real world??

Exhibit A:


Exhibit B:


Thanks again, in advance!

MIJ

Bertrand Daoust

Hope this will help.
This is from the WSM for a 1978/1982 RoW car.

Edit: It is not from the WSM but from the Porsche Parts Catalogue.
Still sleeping this morning.

WallyP

Leaking banjo fittings can often be cured with new sealing rings. Get a bunch of them. The rings are soft, but "work-harden" after use, which can cause leaks.

I would prefer to have the stock fuel system.

Mark in Japan

So, what does the Solenoid do?

and what does the damper do?

and will my Porsche survive without them???

Dave928S

Mark
Both those are essential parts of the complete system made of up components which alter the control fuel pressure ... which varies the flow of fuel to the injectors, from rich when cold to leaner normal mixture when hot. Without the modulating effect of control pressure on fuel delivery, the system would revert back to one where fuel is directly proportional to air flow, without regard to temperature and all other variable influences which require tweaking of mixture throughout the rev range ... in other words it would run like a pig a lot of the time.

The secret to getting a CIS motor running well is to make sure all components are operational and correctly adjusted as per WSM procedures ...the parts are essential and need to be left in. You should be able to get those fittings leak free by carefully cleaning all connections and replacing sealing rings 5 and 12 on the diagram. Banjo fittings need a washer/ring to crush and seal, and tend to leak if the old ones are re-used.

SMTCapeCod

This one puzzles a lot of folks. It is shown in a pic in the WSM, it is the hot start circuit- adjusts pressure for better hot starts.

Tom in Austin

Dave's right, banjos seal beautifully, but only with new (or annealed) crush rings.