RE: [Chrysler300] Electric Fuel Pump

["Richard Barber" <c300@xxxxxxx>]

Thanks to several of you who responded that mechanical fuel pump failure
often results from a ruptured diaphragm in the fuel pump body and that there
is gasoline on one side of the diaphragm and the engine's crankcase on the
other.  Energizing a rear-mounted electric fuel pump may then flood the
crankcase with low-viscosity/0 weight non-lubricating and highly flammable
gasoline.  Subsequent high speed disassembly should then be anticipated.  

 

I'll fabricate a jumper to bypass the fuel pump, invest in a handful of
tubing fitting wrenches and I'll be prepared for that eventuality.  Probably
easier just to carry a spare mechanical fuel pump.

 

Thanks again for the advice not to trash my engine or torch my car.  Great
call.

 

C-300'ly,

Rich Barber

Brentwood, CA

1955 C-300 (Hoping to see some of you at the Capital City MoPars show
tomorrow in Sacramento www.capitalcitymopars.com  )

 

From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On
Behalf Of Rich Barber
Sent: Friday, June 25, 2010 9:31 AM
To: 'Mark Lindahl'; chrysler300@xxxxxxxxxxxxxxx
Subject: RE: [Chrysler300] Electric Fuel Pump

 

  

I installed an electric fuel pump near the gas tank and wired it so that it
would only run when a button switch hidden under the dash is pushed, the
ignition key is in the crank position and the gear selector is in drive so
the engine will not crank. I only use it when the car fails to start
immediately. I can hear the electric pump running and when the pitch
changes, I know the carbs are full, the floats are closing the float valves
and the car is ready to start with one pump of the accelerator pedal. I
left the rebuilt mechanical pump in place and fuel flows through the
electric pump when it is not running. I also added a pigtail that could be
connected to a hot terminal for continuous running in case of a fuel pump
failure.

This has made all the difference in the world in having confidence the car
will start easily during any condition and I do use it about 50% of the
time.

C-300'ly,

Rich Barber

1955 Chrysler 300

_____ 

From: Chrysler300@xxxxxxxxxxxxxxx <mailto:Chrysler300%40yahoogroups.com>
[mailto:Chrysler300@xxxxxxxxxxxxxxx <mailto:Chrysler300%40yahoogroups.com> ]
On
Behalf Of Mark Lindahl
Sent: Friday, June 25, 2010 5:39aa AM
To: chrysler300@xxxxxxxxxxxxxxx <mailto:chrysler300%40yahoogroups.com> 
Subject: [Chrysler300] Electric Fuel Pump

Hello,

I would appreciate any suggestions for a good electric fuel pump for a
3256SA Carter AFB.
After the fuel pump is installed, is it common for the push rod to be
removed from the stock pump?
I am still having to crank the engine a lot to get fuel to the carb on cold
starts.

I believe the best place to mount an electric fuel pump is near the rear
axle?
Any other suggestions?

Thanks,
Mark Lindahl
'63 300 Conv.






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