 What's wrong with the fuel system?, 914-6 w/ 40 PMO's won't start or idle (without assistance) |
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| david63 |
 Dec 16 2011, 07:23 AM
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Member  Group: Members Posts: 98 Joined: 9-August 09 From: Parker Colorado Member No.: 10,653 Region Association: Rocky Mountains  |
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. |
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| david63 |
Dec 16 2011, 09:00 AM
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Member Group: Members Posts: 98 Joined: 9-August 09 From: Parker Colorado Member No.: 10,653 Region Association: Rocky Mountains |
Interesting question. A couple of times it did start yesterday after it died but 99% of the time I had to put gas in the carbs to get it to start (runs really good until that gas is gone then it is a real chore to keep it going). This is why I wonder about the fuel deliverability? I will try to get the wife to help tomorrow (she loves the gas/exhaust smell and the nice quiet blipping of the throttle). I should probably yell at my PCA friends for assistance instead. Will try your suggestions.
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Posts in this topic
david63 What's wrong with the fuel system? Dec 16 2011, 07:23 AM
GeorgeRud Plugged idle jets? Today's fuels do break dow... Dec 16 2011, 07:27 AM 914Sixer Worst case is the fuel sock filter in the tank is ... Dec 16 2011, 07:33 AM scotty If your PMO's have screw on fuel filters, they... Dec 16 2011, 08:14 AM naro914 If it runs and just won't idle, it's proba... Dec 16 2011, 08:22 AM david63 Thanks for all the quick responses.
I will chec... Dec 16 2011, 08:33 AM naro914 If you pump the gas a few times before trying to s... Dec 16 2011, 08:40 AM pcar916 Back to basics. Check that your fuel pump is work... Dec 16 2011, 09:38 AM J P Stein Starting a carbed car, after it has sat for a mont... Dec 16 2011, 11:20 AM
naro914
Hand operating the linkage while looking down the... Dec 16 2011, 11:24 AM david63 Happy happy joy joy... worked the linkage and had... Dec 16 2011, 01:27 PM J P Stein
Happy happy joy joy... worked the linkage and ha... Dec 16 2011, 01:40 PM naro914 you may want to try this: run a bunch fuel system ... Dec 16 2011, 02:08 PM shoguneagle When you leave to go back to your job get a produ... Dec 16 2011, 03:01 PM campbellcj FWIW my car regularly sits for 2-6 weeks between u... Dec 17 2011, 01:42 PM |
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