Taking the plunge, 1.8 liter FI Won't Stay Running Options

[knuckledrgr914]

I am a new 914 owner and have just started trying to get it road worthy. It is a '74, 1.8 liter, and fuel injected. Now for the noobie question...

After running the car around the neighborhood, I came home with a fuel leak. I found one of the hoses, leading to what I assume is one of the injectors, was split open. I replaced the hose which stopped the gas leak.

Now comes the problem... My car now fires, runs for approximately 40- 50 seconds, and then quits. It does not matter if it is just idling, or if I am giving it some juice... It just quits. I turn the key off, turn it back on and it will fire again after a couple revolutions!

Any idea why changing out the bad fuel line would cause this behavior? As you can tell, I am just learning the mechanics of the 914 so be kind and send lots of pictures (of how to resolve the problem that is (IMG:style_emoticons/default/ohmy.gif))

Thanks in advance,
Brad

[jim_hoyland]

If you don't mind spending $30 or so, buy a vacuum gauge. Install a T to one of the smaller vacuum lines entering the plenum; than a small hose to the vac gauge.
As you make changes or replace hoses, you can monitor the vac.

I bought a VDO vac gauge and it came with a metal holder which easily mounts inside the engine compartment on the targa top holder nuts ( right side). I also mounted an in-line fuel pressure gauge. Whenever I have an engine problem, I can quickly determine whether there is a vac leak or fuel pump problem.

Watch out for the small hoses, try bending them between your fingers, if they break, you found it. There are other possible places for leaks.

Jim