RE: [Chrysler300] Electric Fuel Pump

[Andy Mikonis <r41hp@xxxxxxxxx>]

I may not have been born until 1968, but from my observations millions of 1950s/1960s and older cars drove billions of miles without an extra/added electric fuel pump. My feeling is your time/money would be better spent freshening the carbs every few years and making the chokes work properly.
 
Also, here's a question: if you have to crank your car extra times after storage, doesn't that actually build up some oil pressure before it fires? Maybe it's a good thing?



--- On Fri, 6/25/10, Richard Barber <c300@xxxxxxx> wrote:

From: Richard Barber <c300@xxxxxxx>
Subject: RE: [Chrysler300] Electric Fuel Pump
To: "'Rich Barber'" <c300@xxxxxxx>, "'Mark Lindahl'" <mplindahl@xxxxxxxxxxxxx>, chrysler300@xxxxxxxxxxxxxxx
Date: Friday, June 25, 2010, 11:05 PM







 



  


    
      
      
      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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