<VV> Electronic fuel pumps

cfm cfmann at yahoo.com
Fri Apr 18 10:15:40 EDT 2008


This is a different issue and topic for me. I have only experienced the likes of stock mechanical fuel pumps on Corvairs. This new Corvair I have, had an electronic pump installed. My basic understanding is that its a device that is in the fuel tank, run some power to it and remove and cap off the mechanical one.
So, shes not starting (after fixing the loose bolts on the flex plate) she is turning over, I have good battery power, good spark (she does fire) but I think I'm having a fuel delivery problem, doesn't stay lit.
If I were to assume a non-corvair mechanic installed the pump prior to my ownership (not that it matters), I am looking at the return line coming into the engine compartment and its capped of with a bolt and hose clamp.

First, is this OK to do? or is there a problem being created by this technique (like a pressure/vacuum) that a mechanical fuel pump might depend on?

Two, when I turn the key to ON, I hear a little fluttering noise coming from the front, I assume this is the pump kicking in. If I were to disconnect the gas supply line and divert it to a bucket, is it safe to assume that if I turn the key to ON, gas should come from that line into the bucket? (just for confirmation of a good pump)

Three, is it silly to "pump" the gas pedal during the starting process? I assume that if the fuel pump is electronic, she'll pump gas automatically, not sure if pumping the pedal is redundant or not required?

Thanks (again) in advance,

Chris Mann
69 monza convertible with a 65 or 66 110 PG engine/trans



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