Fuel line 1975 914 2.0, Under the fuel tank Options

[ConeDodger]

I just did a search on this to figure out the hose sizes and best I can tell there are two or three different size hoses under the tank??? (IMG:style_emoticons/default/dry.gif) One from the tank to the filter, one from the filter to the pump, and at least one more size???

What are the appropriate sizes and lengths? (IMG:style_emoticons/default/blink.gif)

[jcd914]

I was just dealing with tank hoses yesterday (well I started). Rob and I talked about it at the reunion. I took the fittings from my 73 tank to FLAPS and asked for fuel hose that fit. I got hose marked as: 3/8" (9.5mm) and 5/16" (7.9mm). So just now I took my caliper and went out and measured the tank fittings and the metal ends of the plastic lines going into the tunnel. OD of 73 tank fittings 8mm & 10mm, OD of 73 tunnel lines 8mm & 10mm and OD of 76 tank fittings 8mm & 8mm. I don't have a 76 car to go with the 76 tank I have but I do have a 76 fuel pump and it measures 12mm OD for the inlet nipple.
So you need to go from 8mm outlet on your tank to a 12mm inlet on the fuel pump and you can get there by using a the filter with small inlet large outlet if you can find one or by using a tapered hose or stepped fitting. You probably need 3 feet of hose between the tank outlet and the fuel pump to get smooth bends and room to change the filter/pump from the trunk opening.
Since you are planning an after market FI down the road you can probably get a pump that has an inlet nipple that matches your tank outlet.

Good luck
Jim