What's wrong with the fuel system?, 914-6 w/ 40 PMO's won't start or idle (without assistance) Options

[david63]

It will become obvious that I am not the best mechanic in the world so keep that in mind when you hear my questions.

My 1970 914-6 (GT replica w/ twin plug 2.5) is not feeling too well. A job change kept me away from the car for several months and now you guessed it - it will not run.

What have I done so far... I suspect that the gas is bad so I drained the gas from the tank, replaced it with new gas (even put in a couple of gallons of high octane racing fuel (I know the fuel is OK now).

What the car is doing... It will start if I put a little gas in each carb (has 40 MM PMO's) it starts right up and NOW if I keep my foot in it I can keep it running. It will not idle and it does not hold a constant RPM with no change in throttle position?

I think the fuel psi could be the issue or there is something wrong with the carbs(different settings on the regulator between 3 psi and 9 psi do not seem to help or hurt)? Could the PMO's be plugged with crap (when I left the car sitting I ran it out of fuel prior to storing the car). Maybe the factory fuel pump is going bad. The car was set up like the GT with the factory fuel pump moved up front. Car ran fine before storage (actually would flood really easily prior to the storage period). Does someone rebuild the factory pumps as I have an extra that is leaking badly and thought I might re-build it and try that but would rather not just "swap parts".

Any thoughts, Thanks.

[shoguneagle]

When you leave to go back to your job get a product called "Stabel??" and put into the fuel tank and fill up the tank. Run the car until you know that it has Stabel through out the fuel system.

Product keeps the fuel from deteriorating and minimize water vapor.

Use it on all my vehicles setting at 7200 feet (Flagstaff, AZ) and so far I have not had any trouble starting after they set through the winter.

If you do not have any time, I would look at the fuel tank, sockets and pump up to the carbs. Take a pressure reading and see where you are. I would really like to know what caused the fuel jets getting clogged. Deterioration of fuel????? Maybe, but I would like to know what type of contamination plugged up things. What does it look like? Is the tank dirty and rusty? fuel socks??

Good luck and Merry Xmas. It looks like you got to drive the car a little and that is a great Xmas present.

Steve Hurt