74 vw super beetle

Asked by Dec 13, 2016 at 12:43 AM about the 1974 Volkswagen Super Beetle

Question type: Maintenance & Repair

Do I need a fuel  regulator on a  Electric
feel pump.   When I'm driving down the
road it tries to flood out  I think  

3 Answers

92,865

Seems odd that it will only do this when driving down the road, usually it is when it is idling that is when it will run rich and stall out. Are you sure you not dealing with a fuel starvation problem? You did mount the fuel pump really close to the fuel tank right? If you mounted it in the engine compartment those pumps won't draw very well that far away, compaired to the mechanical pumps electrical pumps are terrible at lifting fuel much over 2 feet.

1 of 1 people found this helpful.

I bought this car a couple weeks ago and the electric fuel pump was already installed but it is right by the gas tank what is throwing me for a loop is that it is an electric fuel pump and there is not a place for a mechanical one on the engine block at first I thought it might be a distributor issue because the one that was on it did not have a vacuum advance so I installed one with a vacuum Abvance I reset the timing and change spark plugs and wires it seem to help a little but still wanted to cut out while driving I can pump the pedal a little bit and it would run good for a awhile was wondering if it could be too much fuel pressure

92,865

That distributor without the vacuum advance is a very good unit, if it isn't worn out, it is much better than the old vacuum advance as it relies on centrifugal force to advance the spark. Anyway onto the fuel problem, pull the fuel line off at the carb and put it in a bottle and then turn on the pump watch for any air in the delivery and it should be able to fill a 16oz soda bottle in 20 seconds, recommended fuel pressure should be 4 lbs. If you do see air then it is likely that there is a hole in the pickup tube inside the fuel tank provided that ll of the other fittings are tight. Is there a filter installed some where? If not then you could also be dealing with some crud floating around in the carb, it could plug up a port during high load then when the load stops like it dies then it floats out of the port only too find it's way back there again. Hopefully there is not much crud in the fuel tank as this can also cause fuel starvation when it covers up the sock in the pickup tube. Hope this has given you ideas on what too check.

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