Fuel pump, No start Options

[Erich]

Hello all, just picked up a 1974 1.8l. New to 914’s but have owned several air cooled VW’s. The 914 has been stored for several years. Just pulled out of storage when I bought it. Will run on starter fluid only. Technically it is a one owner registered car as I have the original owners signed title and as far a si know, it has never been registered by anybody else. Appears to have original 3 port fuel pump. I checked that it does get power to the connector. I then hooked 12v directly to pump, no sound. Gave it a few taps just in case. Seems do is dead. I will. Pull old pump, probably go to a 2 port as easier to find and cheaper.

[wonkipop]

yes, no need for the Y.
2 port relieves pressure back through supply port.

L jets do wire the pump differently to D jets.
pump runs on cranking with key.
then the AFM flap takes over pump operation.
nice safety feature as pump switches off if engine stops (like in a crash).
you would want to keep wiring the same, not having it just work off ignition key in most desirable configuration.

never switched mine over, still in stock location.
but am running a modern pump in original spot,
but have replaced all plastic lines including the ones through the tunnel.
if you move the pump to front you have pressurised line right through tunnel.
the original clear plastic lines not designed to be pressurized.
so.......dodgy in my view.

when the factory went to front fuel pump location they also changed the fuel lines so that they were pressurized variety. at least for supply.

and PS @Erich
since you now have yourself a 74 1.8 L jet you have the misfortune to be hassled and hit up by me for historic data re L jets we are compiling. i'll harass you through PM.
(IMG:style_emoticons/default/beerchug.gif) (IMG:style_emoticons/default/beerchug.gif)

[Erich]

Thanks for the info. I'll probably mount the 2 port under the car near the steering rack, slightly easier than removing tank if fails/clogged filter.

I am a newby to this 914 and Ljet, but feel free to hassle.