Hi
Thanks to all the responses. I had to dig my car out of the junk that
was piled up on and around my car in the garage.
In answer to Rick's questions and Scott's and Marvin's:
When the pedal is first pumped, there is no discernible spray until
about 60 or better. So your analysis, I follow. The gas isn't to the
carb at that point. Then after it gets there it takes a few more to
have enough in the carb to fire. I don't drive my car much (has only
about 17K original miles) but I start it and let it run until warm at
least once every two months. Have been doing this since 1982, when I
bought it. But usually after one or two days, I would still have to
pump it like 75 times to start it.
When I rebuilt the carb, about 15 years ago, I THINK (not positive) that
I looked at the accelerator pump check valve.
If I don't pump the gas pedal prior to even cranking, it would take
forever to build up enough to start. So there IS a leak somewhere,
probably internally, like a seal or gasket. (I never have any fuel on
the floor or anywhere). It runs fine, just takes a lot to get it started.
By the way, I got an e-mail to me, not the whole group, of someone else
who has the exact same thing happening to him.
So based on your questions and discussions, I think you've led me to the
prime suspect being the fuel pump. Thank you for your exceptional
insights. I'll have to get the new pump and follow up to let you know.
Thanks again.
Paul
Rick at High Tech Coatings wrote:
first if the fuel bowl was full of fuel it would only take about 1015 pumps
for the accelerator pump to empty it, so pumping 75 time is worthless. If the
bowl is empty 75 pumps is just an exercise in futility.
questions:
how much shot does the fuel pump have?
is it shooting all 75 pumps?
How long has the car sat before you have to do this routine?
are there any stains on the intake?
did you check the accelerator pump check valve when you rebuilt your carb?
when one of my cars sit for a long time I usually crank it till it builds oil
pressure, then the fuel pump should have filled the carb, give a pump or 3 and
it starts right up, if not I fill the carb with gas thru the vent and it
starts immediately
Rick
On 5/24/2010 11:13:30 PM, Paul J. Amoroso (paul-amo@comcast.net) wrote:
I have a nagging problem that I have had for about 15 years, maybe
someone is familiar with: In order to start my car, I have to pump the
peddle first ( before I even turn the key) about 75 times. I thought
maybe the carb had an internal fuel leak and the bowl needed refilled.
I rebuilt the carb. I have rebuilt carbs before with ok success - I am
not anywhere near expert. But the carb and problem were identical to
that before I started. The car runs fine except for the pesky fuel
needing "primed".
Does anyone have any ideas? Am I wrong to think
it's the carb. Some
other part of the fuel system? Maybe I am mis-diagnosing the problem.
Scott, did you have any of the symptoms like mine with your fuel sender?
Thanks to everyone in advance for any words of wisdom.
Paul Amoroso
#1207
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