<VV> Fuel Pump Going Bad??

[Anil Mittal]

Hello All,

  I have a 66 with a 140 and Power Glide. The fuel pump on the car is
a stock one from one of the Corvair vendors which is less than 5
years old and I am wondering if it is going bad here are the symptoms:

  A few weeks ago the car was running great then just kind of felt
like it ran out of gas. It I pumped the accelerator pedal 15 to 20
times I could get the car to start and run for about 3 seconds then
it would die. I got the car towed home and thought that by chance
both primary carb fuel stones had by chance clogged. I opened up the
stones and replaced them with new spairs even though they looked
fine. The car started right up and ran great for another week, then
the same thing happened. I then replaced the rubber hose at the gas
tank. The hose that was replaced was "vapor return hose" which was
all cracked and nasty. I then replaced the hose in the rear left
wheel well with proper fuel hose as well as installed an inline fuel
filter there. The car again ran great for about a week. The next time
this happined I noticed that I was on empty, thinking I ran out of
gas I put a few gallons of gas in the car and had no luck getting it
running. I could pump the accelerator pedal 20 times and it would run
for a few seconds and die, no flodding and no raw gas smell which was
really weird. I left the car on the side of the road and came back
the next morning. With a little cranking the car started up and I
drove it the 2 miles home. This was about a week ago and I have not
touched the car since. Would this indicate to me a bad fuel pump
which does not want to pump when it gets hot? The car does not have
the typical vapor lock symptoms since it dies while it is driving and
I did not have it "warm soak" just before. The carbs are fairly new
Grant rebuilds less than a year old. I also do not have a raw gas
smell in the oil so I don't beleve that the pump is leaking into the
oil. Does anyone have any suggestions? Thank you for any help.

Anil