RE: [Chrysler300] Re: AUXILLARY FUEL PUMP

[Ryan Hill <ryan_hillc300@xxxxxxxxxxx>]

Many of us have run electric pumps alone that way without incident but it's dangerous if you're running a mechanical pump as well, especially with modern fuels that seem to deteriorate the mechanical pumps faster than in the good old days. 
 
Also, if you're running an electric pump full time as your only pump on a carburated car, I would think you should have a low oil pressure kill switch or inertia switch installed in the event of an accident where the key is not turned off. Nothing like having a fuel line rupture and a pump continuing to run and spray raw fuel all over. 

Ryan Hill 
 



To: chrysler300@xxxxxxxxxxxxxxx
From: paulholm@xxxxxxxxxxxxx
Date: Fri, 14 Oct 2011 13:54:07 -0400
Subject: Re: [Chrysler300] Re: AUXILLARY FUEL PUMP


  



On 10/14/2011 1:27 PM, Ryan Hill wrote:
>
> One important thing to remember when running an auxiliary electric pump like this. If the electric pump is left running and your mechanical pump fails, you could potentially fill your engine with fuel. (If the diaphragm fails, it will leak internally) The damage can be catastrophic! Also, in the past, some have mentioned the convenience of having a second pumping source to limp home on in the event their mechanical pump fails......this should only be done after bypassing the mechanical pump for the same reason.

> Make sure the pump is being shut off, I would set it up with a push button rather than a switch so it's only on when I push it to prime the carb.

> Ryan Hill

way back when, we used to just wire the pump to the 'hot when key on' 
source that way if the key was off and out the pump was Not running

-- 
Paul Holmgren
Mine: 2 57 300-C's in Indy
Hers: 05 PT GT R/T HO Stage 1
Hoosier Corps L#6



 		 	   		  

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