Mike,
Bypass the electric fuel pump with the fuel line also. The mechanical fuel
pump can't suck it through the electric pump.
A 240 I had had a bad electric pump and I thought it was the mechanical pump
so I replaced it. NG. I had to rip out the electric pump.
Mike
----- Original Message -----
From: "Mike Harper" <roadsterdude1600@yahoo.com>
To: "Todd Barker" <barkert@centinela.k12.ca.us>
Cc: <datsun-roadsters@autox.team.net>
Sent: Monday, October 08, 2001 3:16 PM
Subject: Re: diagnosis please....Now Electric Fuel Pump
> I'v gotta ask. I see that some folks have an electric
> fuel pump hooked into the system as a spare. I like
> that idea. My 2000 has an extremely loud Holly
> Electric fuel pump which seems to work fine, but is
> driving me nuts with the noise. I tried some thick
> rubber grommets/washers to deaden the noise without
> much help. I'm thinking about reinatalling a
> mechanical pump. (not sure why the electric pump was
> installed to begin with).
>
> Can I leave the plumbing like it is, pull the wiring
> off the electric pump, install the mechanical pump,
> without any restriction problems? I do not see why
> not, but someone may know a reason. Just asking.
> Then I've got a backup if I encounter any unforseen
> problems with the mechanical pump.
>
> Make any sense??
>
> Mike Harper
> '66 1600 (happily mechanical for 35 years)
> '68 2000 (IT'S ELECTRIC!)
>
>
>
> --- Todd Barker <barkert@centinela.k12.ca.us> wrote:
> > Have you verified for sure that this is vaporlock. I
> > had a mysterious problem
> > for several years like this. It turned out that
> > there were little strips of
> > debris floating around in my gas tank that would
> > intermittently block the pick
> > up sometimes completely, or sometimes just a little.
> >
> > The idea of an electric fuel pump and a fan are
> > great. I have an electric one
> > hooked up and ready to go if the mechanical ever
> > gives me any problems. The fan
> > does make a huge difference in terms of keeping the
> > engine compartment cool
> > after stopping or while driving. I have my fan set
> > to come on at 185, but I
> > also have a manual switch that allows me to turn it
> > on at any time. I think the
> > fan really helps with some of the heat damage that
> > use to happen to my
> > alternator and starter.
> >
> > Todd Barker
> >
> >
> > >
> > > ----- Original Message -----
> > > From: "Michael Breen" <elvis@channel1.com>
> > > To: "Mike Breen" <elvis@channel1.com>;
> > <datsun-roadsters@autox.team.net>
> > > Sent: Saturday, October 06, 2001 11:09 PM
> > > Subject: Re: diagnosis please....
> > >
> > > > Thanks for all your responses. The
> > hesitation/sputtering is now happening
> > > > intermittently, even without cutting the engine
> > for a short duration.
> > > Based
> > > > on your feedback, I am treating this as a vapor
> > lock problem. Short term I
> > > > will try the "clothes pins as heat sink"
> > technique, but I think I may try
> > > > and install an electric fuel pump. From what I
> > have been able to research,
> > > > this appears to be a pretty straightforward
> > solution to the vapor lock
> > > > problem. So ...
> > > >
> > > > Has anybody installed an electric fuel pump?
> > Would you care to share (in
> > > as
> > > > much detail is you can) the how and where of the
> > procedure and any other
> > > > information you think is pertinent. Any
> > recommendations on a specific pump
> > > > and where I can purchase it.
> > > >
> > > > Thanks as always.
> > > >
> > > > Mike
> > > >
> > > > 68 2000
> > > > ----- Original Message -----
> > > > From: "Mike Breen" <elvis@channel1.com>
> > > > To: <datsun-roadsters@autox.team.net>
> > > > Sent: Thursday, October 04, 2001 9:15 PM
> > > > Subject: diagnosis please....
> > > >
> > > >
> > > > > Hello,
> > > > >
> > > > > I could use your help diagnosing the following
> > symptoms:
> > > > >
> > > > > 1. drive around for 20 to 30 minutes with no
> > problems - in fact the car
> > > is
> > > > > running great.
> > > > > 2. turn off the engine for 5 to 10 minutes
> > > > > 3. start driving around again
> > > > >
> > > > > As I accelerate, the car hesitates as if fuel
> > is not getting through.
> > > The
> > > > > hesitation is worse at higher RPMs. The
> > problem is intermittent and it
> > > > does
> > > > > seem to go away after I drive for a while.
> > > > >
> > > > > Any ideas?
> > > > >
> > > > > Thanks,
> > > > >
> > > > > Mike
> > > > >
> > > > > ///
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