RE: [DML] Noise from fuel pump

["John Hervey" <john@xxxxxxxxxxxxxxxx>]

Matt,
Hot climate is doing havoc on pumps. Not just Delorean but I work with
Porsche people also and they have some of the same problems. Hot gas, Hot
weather = hot pumps and more noise, even to the point of collapse. I know
one company that tried to fix the problem by an improvement in the rebuilt
pump but it still came back with the almost same problem.
I work with the group in Arizona and the Hot Air Dam I build has helped and
I'm working on another improvement that will help keep heat off the tank
from the road surface. I'll post when it's ready.
John Hervey
www.specialtauto.com





-----Original Message-----
From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx]On Behalf
Of nuclearwesselanimation
Sent: Friday, August 12, 2005 11:30 PM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: [DML] Noise from fuel pump


Hi everyone! I am having a real problem with my fuel pump. it is a
DMCH new and "improved" unit that I installed about 6 months ago.
After about an hour of driving, the pump starts to make an aweful
groaning noise.  If I continue to drive, the groaning gets louder
and fuel flow seems to drop.  This will continue to the point that
the pump seems to stop turning and the engine quits like it is uot
of gas.  I have removed the pump from the car roadside immediately
after this happens and it is hot as hell.  I wrapped it in a cool
towel for 10 minutes or so and then started the car.  It was better,
but still loud.  I limped to a gas station and filled the tank with
6 or 7 gallons of fresh, cool gas and the problem dissapeared.  I
have toweled out the tank to remove silt and I have tapped the
screen and even tested the pump with an unscreened tube right into
the gas, so I am pretty sure it is not clogging of the baffle
screen.  Do I have a defective pump?  I rarely travel far enough for
it to be a problem but I want my touring car to be able to tour.

Thanks all

Matt
vin# 6716
Denver, Colorado







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