Quote:
Originally Posted by gibran911
Hello. I am rescuing a 1973.5 Porsche 911T Targa from the Arizona desert. It has sat for about 16 years, only started occasionally and driven around the neighborhood by the previous owner.
I started out draining the tank of old fuel, about 1 gallon, through the drain plug at the bottom of the tank (screen was clean) and replaced all six injectors as well as the fuel filter.
The car starts right up and runs and drives, well sort of... here's the situation.
#1 injector flows as soon as the key is turned on and the fuel pump engages. none of the other jets do this. If the key is left in the on position, the#1 cylinder fills with fuel and the car wont start - Hydro lock>until I turn the motor by hand and relieve the fuel from the cylinder. Once the car is started the excess fuel comes out the exhaust.
Q) Is this problem related to the fuel distributer or perhaps another component of the CIS?
Any Idea's or experience with this? I know that I will probably be doing a complete shake down of the system, from tank to the injectors and all points in between.
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Gibran,
I just posted a similar picture earlier to assist another member with his problem. The way you described it, it looks like one injector is stucked open and spraying fuel prematurely. To determine whether this is true or not, fabricate something similar to this set-up. Then turn the ignition to switch @ RUN/ON and the FP will start to run as per '73.5 CIS model'.
There should be no fuel coming out from any of the injectors. No mist or drip at all!!!! If you find any injector/s delivering any amount of fuel at this early stage, either the injector/s is bad (dripping) or the air-mixture screw is set too rich. Do not touch or alter the air-mixture screw!!!! I would bet the injector is bad.
Your goal is to have the
FP running with zero drip (fuel). Sometimes the fuel injector could be refurbished and cleaned by pressure cleaning. Install the defective fuel injector in another line and test. Start from this and keep us posted.
Tony