popping reply to all

[John Hertog <crossram@xxxx>]

In reply to Ron and others : in the interim I have installed the carbs that
were originally on the "popping" 300G, onto my 300G convert. My 300G still
runs fine and no pops.

Fuel supply is adequate, and the sick car runs fine under any kind of
condition - full throttle, part throttle, idle. You can really beat on it
and it doesn't run out of gas.

Popping mostly occurs on left hand turns. There MIGHT be some slight popping
on right turns but it is a lot harder to make it pop on right turns, if at
all.

There is no interfence with wheel - tire ; motor mounts are good. Yes, this
problem is not intermittent. It will happen at will when accelerating thru a
left turn. There is a traffic circle next to my house and when I go around
it and just touch the accelerator, the danged car pops thru the carbs. If I
try to accelerate harder, it pops more, sometimes stalls.

This problem occured before intake system was removed. Since
reinstallation, there has been not one bit of difference. That would rule
out intake leaks. Would also seem to rule out an obvious wiring problem
since wires were moved / jiggled when intake was taken off and reinstalled.

Plenty of fuel supply - car runs great under any kind of load ; not the
carbs, I have ruled that out. Doesn't SEEM to be electrical. I am not
making HARD left turns at great speed, just driving like a normal person.
What it FEELS like is fuel sloshing into the carbs and making them pop, but
that is not logical because of all the carb switching I have done.

Aaaargh

John




----- Original Message -----
From: <ronbo97@xxxx>
To: "John Hertog" <crossram@xxxx>
Cc: "Chrysler 300 Club Listverver" <Chrysler300@xxxxxxxxxxxxxxx>
Sent: Tuesday, September 24, 2002 1:57 PM
Subject: Re: [Chrysler300] popping


> Hi John -
>
> Here's some possible help with the diagnostic.
>
> Put the front of the car up on jack stands. The car need
> not be running. Turn the wheel to the left and have
> someone else watch to see what is happening, possibly
> from below. Is a flexible fuel line getting crimped when
> the wheels are turned ?
>
> Is there an electric fuel pump involved ? Also, does
> this happen *every time* you make a left hand turn and
> apply gas, or is it an intermittent problem ? What
> happens when you make a left and don't apply gas ?
>
> Ron
> > Hi to all,.
> >
> > I am experiencing a problem which has left me befuddled. Perhaps someone
on
> > this list can help, might have dealt with it before?
> >
> > The patient is a 300G convertible in bone stock trim . The problem is
> > popping / burping / backfiring thru the carb(s) on left hand turns.
> >
> > Before y'all say "carb. float adjustement" , let me tell you that I have
> > tried THREE different pairs of carbs on this car. I even took a pair of
> > carbs off my 300G convert, which does NOT pop when making any kind of
turn
> > at any speed. I even roadtested my "G" convert. before removing the
carbs
> > and made many turns at varying speeds before determining that it does
not,
> > ever, pop back thru the carbs.
> >
> > The result of all this carb swapping has left me completely mystified.
The
> > sick car still pops thru the carbs when making a left. Even pops through
the
> > carbs from my 300G convert, which I know are good. This is a dangerous
> > situation as it can pop / backfire thru the carbs so hard at times that
it
> > will stall ! The popping mostly occurs when giving a little throttle
while
> > going through the turn - as one would normally drive.
> >
> > The car runs PEFECTLY otherwise. Good idle. Plenty of power. No
accelerator
> > pump lag. Runs like a dream at any speed - except when making a left
turn
> >
> > I have taken off the rams, reinstalled with new intake gasket. No
> > difference. This feels like a fuel problem, and not electrical. I have
> > checked all the wiring, and indeed all the connections to distributor,
coil,
> > etc.
> >
> > Help. I don't know where to go from here.
> >
> > John
> >
> >
> >
> >
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>