[DML] Re: Noise from fuel pump
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[DML] Re: Noise from fuel pump



 I think part of the problem is a restriction in the feed to the fuel
pump. Hot fuel will vaporize easier than cold fuel so any restriction
will make the fuel vaporize easier the hotter the fuel is. It is very
important that the fuel pick-up hose is not spongy soft and is not
kinked when it is installed. Put a spring inside if you have to. That
fuel pump moves a lot of fuel and can create quite a suction, enough
to collapse a soft hose. Once the hose collapses the pump will starve
for fuel. It will get noisy and wear out. The fuel cools it and
lubricates it. The problem is always more noticeable the lower the
level of fuel in the tank and the higher the ambient temperature. The
heat shield may help with the problem but a spring in the hose will do
more. If you have an old hose that is not stiff maybe get a new,
stiffer one. I would use the spring anyway. It is very important that
you do not twist or kink the hose as you install the pump. Any slight
kink will collapse the hose once it gets hot and the pump puts a
vacuum on it.
David Teitelbaum
vin 10757


-- In dmcnews@xxxxxxxxxxxxxxx, "conundrum1984" <jeepno1_397@xxxx> wr








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