Re: hard starting 440

I do run a blank off plate and run electric only for fuel pumps.

The point I was poorly making is that running electric and pushing through a mechanical can lead to problems. I went electric on my cars out of necessity. I am in Arizona the combination of the new fuels and high temperature results in vapor lock.

The other point was safety. In the event of a problem the electric fuel pump should not keep running, the mechanical pump stops pumping when the engine is off, the electric fuel pump should stop pumping when the engine is off.

Dennis C.

On Monday, September 10, 2018 at 5:39:31 AM UTC-7, Jimmy Peavy wrote:

Don't do it then.
But it's done all the time, and done for decades.
If you don't want to, that's okay.
Buy or make a block off plate, and just run an electric.
Is it hard starting just after sitting up for a week?

On 9/9/18, dennis.1963ply <dennis....@xxxxxxxxx> wrote:
> 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 <_javascript_:>>
>> To: "1962to1965mopars" <1962to19...@xxxxxxxxxxxxxxxx <_javascript_:>>
>> 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 <_javascript_:>> 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 --
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> 1962 to 1965 Mopar Clubhouse Discussion Guidelines:
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