Re: hard starting 440
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Re: hard starting 440



Hello,

I am concerned about running both an electric fuel pump and a mechanical pump.

I tried this and found that with the pump configuration the mechanical pump would work alone until about 1/2 tank then I would starve for fuel and had to turn on the electric pump.

WARNING !!
Pumping through a mechanical pump is dangerous.  If there is a diaphram failure in the mechanical pump you can fill the crankcase with fuel which can result in an explosion and fire.

If you are running an electric fuel pump use a safety device like a low oil pressure switch to turn off the fuel pump when the engine is not running.  The worst case is an accident.  I use one of the commercial oil pressure switches designed for the fuel pumps however I have a center off switch that I can run through the oil pressure switch or bypass it to prime the carb.

There is also an electronic unit that works similar to new cars.  When the key is turned on the electric pump runs for a few seconds to prime the system.  Then it takes a coil signal to let it know the engine is running and enables the fuel pump.

Just my thoughts, please correct me if I am wrong.

Dennis C.

On Sunday, September 9, 2018 at 1:39:43 PM UTC-7, gto64gto wrote:
How would you run both at the same time? Thanks

----- Original Message -----
From: "Jimmy Peavy" <peav...@xxxxxxxxx>
To: "1962to1965mopars" <1962to19...@googlegroups.com>
Sent: Sunday, September 9, 2018 8:46:48 AM
Subject: Re: hard starting 440

the best depends on what your plans are, race, street, etc.
you can remove , and use a plate to block the pump/block mount, but
you may want to run both.
The regulator depends on the pump used. Some are regulated internally,
at around 5 or 7 lbs, same aren't.
If the pump you choose has a running pressure of 11, or 12 lbs, you
will need a regulator to keep pressure down at the carb.




On 9/8/18, gto64gto <gto6...@xxxxxxxx> wrote:
> A week or 2 ago, there was a discussion about hard starting and electric
> fuel pumps. My 440 is hard to start if I don't get to it in 3 or 4 weeks. A
>
> few questions. What would be the best electric fuel pump to use-do you
> block off the stock mechanical pump and if so, how-and do you need to run a
>
> fuel pressure regulator? Any help or suggestions would be appreciated.
> Thanks.
>
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Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks!

1962 to 1965 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
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Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks!
 
1962 to 1965 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
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