<VV> Strange power loss problem

[Keith Onchuck]

OK I managed to get in the garage for a while today. 
I put a fuel pressure gauge on the car and I have
narrowed down the problem.  (I do not know why I
didn't do this way back when.) The fuel pressure will
hover around 7 but drop to 0 and then slowly build
back up.  It seems to be a random pressure drop.  

I had replaced the fuel pump when this first started
so I am not sure that is the cause.  I have a spare
electric pump from another car that I plan to test. 
If it keeps steady pressure I may just convert to
electric.  If it has the same symptoms then I know to
look into the lines and tank for a blockage.

Keith

--- Keith Onchuck <keitho64 at yahoo.com> wrote:

> OK looking for a little more advice.  I replaced the
> plugs, cap rotor, wires, points, condensor, coil and
> the problem still exists.  Lets just say I took the
> shotgun approach on the ignition system since I
> haven't done anything in 9 years.  The timing is on,
> I
> have cleaned the advance weights to ensure that is
> working and the vacuum advance is working.  I am
> going
> to run a compression test next.  Is it possible for
> the cam gear to have slipped enough to cause a
> problem?  I think my diagnostic skills are suffering
> since the car has been running so good for so long. 
> 
> The only other possibility I see is blockage in the
> fuel delivery system.
> 
> If you have any other ideas or see areas that I
> missed
> I am all ears.
> 
> Sorry if I sound like I am rambling but I am very
> confused about what is wrong.
> 
> Keith
> 
> --- Keith Onchuck <keitho64 at yahoo.com> wrote:
> 
> > Thanks to everyone for the feedback.  So far here
> is
> > what I know:
> > 
> > The fuel line is not bent nor are there any holes.
> 
> > I
> > was looking at this first.  I did replace the fuel
> > pump so the only other fuel related issue unless
> > there
> > is a blockage in the tank.
> > 
> > I am focusing on the Pertronix module so I ordered
> > new
> > cap, rotor, wires, plugs, points, condensor, coil
> > and
> > I am even going to clean out the advance springs. 
> I
> > cannot believe it has been 9 years since I put in
> > the
> > pertronix and last tuned it up.  Me bad, did not
> > realize it was that long, only 6800 miles since
> then
> > but none the less probably to long.  The parts
> > should
> > be here by Monday so I will post a follow up.
> > 
> > Thanks again for the advice.
> > 
> > Keith
> > 
> >
> ****************************************************
> > 
> > I am having a problem diagnosing a strange problem
> > on
> > my 1964 110 4-speed car.  On acceleration, normal
> or
> > hard, the car will intermittently stumble as if it
> > has
> > run out of gas.  In some cases the car will
> > completely
> > die.  This first started late this summer and it
> is
> > becoming more of a normal occurrence where I
> cannot
> > drive the car for any length of time.  When the
> car
> > acts up it takes a long time to start and appears
> as
> > if there is no fuel.  When I check the carbs I can
> > see
> > fuel going into the engine so I do not think it is
> > an
> > accelerator pump issue.  However I was determined
> > that
> > is was fuel related.  I replaced the fuel pump and
> > all
> > filters but the problem is still occurring.
> > 
> > I do have a pertronix module in the ignition and
> > after
> > trying to drive the car this weekend I noticed
> that
> > the car would explode in the muffler when I tried
> to
> > keep the car running.  So I started to think maybe
> > the
> > pertronix module and/or ignition system is
> suspect. 
> > I
> > am in the process of replacing the module with the
> > old
> > stand by points and condenser.  The wires, cap,
> > rotor,
> > plugs, coil and timing all appear to be good but I
> > ordered new just to be safe. 
> > 
> > I have two questions:
> > 
> > 1.	Having never experienced a failing pertronix
> > module
> > does this sound like a possibility?
> > 2.	Is it possible there is a block in the fuel
> tank
> > that is causing an intermittent failure of fuel
> > delivery?
> > 
> > Thanks
> > 
> > Keith
> > 
> > 
> > 
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