fuel tank

[newto912]

my fuel tank is unconnected.
having a look at it there is a drain plug, also two connectors 1 is blanked off the other has a rusty mesh filter which corresponds to what I assume is the fuel hose to the fuel pump/carbs.
tank looks fairly clean inside not too much rust. I plan to blank up all the holes and swish through with petrol and see if any leaks, and use soda electrolysis to clean up the mesh filter
My questions are
1. is there a fuel return pipe as well, as can only find a feed. (later 911s have a return pipe)
2. is it worth trying to replace the hoses although that looks like it might be a right PITA
3. Is there a way of adding in an in line filter between tank and fuel pump or is this overkill
what have others done when replacing a tank or recommissioning?
4. how is it actually attached? there is a screw hole towards the front in the forward floor pan, but cant see any other anchor points . Is there a gasket or seal between the tank and floor pan
Does anyone now if there is a manual to tell me how the car was put together, anything like the Bentley manuals for 911s?

Thanks in advance
Andrew

[SeanP]

Andrew

No fuel return pipe.
Replace all of the rubber fuel hoses with the correct type.
Inline filters can be installed in the fuel line. Would suggest that you do not use the plastic type.
If you go to the Porsche website and search for the PET document for the car it has exploded views of the assembly's and components. Hopefully here is the link http://www.porsche.com/all/media/pdf/or ... ATALOG.pdf
It should help you answering lots of questions on what goes where. Would also suggest the orange book from Amazon if you don't already have one.
http://www.amazon.co.uk/Porsche-912-Wor ... orsche+912.

If you are not sure about things keep posting here.

Regards

Sean

[newto912]

Thanks
the diagrams are very useful, I have already identified a few missing parts!
Have ordered the book as well

[SeanP]

Glad to help

Regards

Sean

[Simon Rudge]

Hi Andrew,

sounds like you have the right ideas going on.

The tank should have 3 flange clamps holding it in, front and either side. There is a seal, you will have seen it on the diagrams, that needs to be replaced to keep moisture out. By all means look at using a filter, but check on flow through it. Replacing the pipe is a pain, but persist and do it, making sure you use a modern spec 'R9' graded pipe, which will resist ethanol in fuel a little more, but keep an eye on it and expect to replace every year or so.

Cheers