Re: [Chrysler300] Carburetion Question!!! - reply

["John J. Hertog" <crossram@xxxxxxxxxxxxx>]

Warren, et al .

The psi output of the auxiliary pump is the same as that of the stock pump - 
about 5 psi if memory serves me right. There is no more reason for it to 
overpower the needle and seat in the carbs than for the stock mechanical 
pump to do so.  I have used mine on a switched, ignition-on circuit, and 
once it even got me home after the stock fuel pump failed while driving on a 
trip. I have also inadvertently left it on at times and it has made no 
difference at all in the car's performance, or caused any flooding of any 
sort. This (and the flow-thru design)  is why I like Mr. Lazenby's electric 
pumps

John Hertog


----- Original Message ----- 
From: "Thomas Miller" <tfm@xxxxxxxxxxxx>
To: <Chrysler300E@xxxxxxx>; <wranderson@xxxxxxxxxxxxx>; 
<crossram@xxxxxxxxxxxxx>; <Chrysler300@xxxxxxxxxxxxxxx>
Sent: Tuesday, September 20, 2005 8:11 PM
Subject: Re: [Chrysler300] Carburetion Question!!! - reply


> Hi Warren,
>
> Would you still take issue with this setup if a momentary contact switch 
> were used instead of a toggle?
>
> Just curious.
>
> Best Regards,
>
> Thomas F. Miller
> tfm@xxxxxxxxxxxx
>
>>>> "Warren Anderson" <wranderson@xxxxxxxxxxxxx> 9/20/2005 8:08 PM >>>
> The only 100% for sure "cure" for this symptom
>> is to install an auxiliary electric pump. Properly installed at the rear,
> by
>> the tank, this switch-controlled unit would push fuel all the way up to
> the
>> front when turned on, and fill up the bowls on the carbs with fuel.  then
>> start the car, turn off the electric pump, and you're done.
>>
>> My 300G is equipped with such a critter. Even after weeks of sitting, 
>> it's
>> always an easy start.  It sure beats cranking and cranking and cranking
> and
>> cranking to get fuel up to the carbs using the factory mechanical pump.
> So
>> far it's been years since I have had to replace the starter, and I 
>> believe
>> this is in great part because I don't have to use it a lot, to crank and
>> crank and crank...
>>
>> John Lazenby sells a small, easy to install "straight-through" unit that
>> will allow fuel to flow through it even when turned off.   E-mail him at:
>> john@xxxxxxxxx
>>
>> John Hertog
>> Sag Harbor NY
>
>
> Dangerous set up to say the least. First, idle pump DOES cause some
> restriction that can be just enough to aggravate marginal vapor lock
> condition.
>
> Single switch under dash can be (and will be eventually)  left on and pump
> will pump entire contents of fuel tank through needle/seat and at least
> cause a mess. This I have seen happen but have never seen what happens 
> when
> switch is left on and carburetor floods over and a large fire starts. This
> can happen very easily and is why a safety system needs to be built into 
> the
> on-off supply for the booster pump so that if the engine dies, the pump
> shuts off too. Good common sense approach to avoiding otherwise inevitable
> disaster.
>
> Back when, heavy duty trucks with carburetors had in-tank electric fuel
> pumps and primer buttons on the dash. Before the engine was running, 
> primer
> button allowed driver to fill (big) float bowls and then, after engine was
> running,  the pump was oil pressure triggered to run. Prime pump before
> start is definately not some new idea and is not a bad idea but needs more
> than simple switch to be safe. (IMO as well as alot of other engineers)
>
> Warren Anderson
> Sedona,AZ
>
>
>
>
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