I had a '69 VW Bug in college that had a somewhat similar problem. Turned
out to be something in the gas tank would get sucked into the outlet, then
float back out.
Steve Conley
> -----Original Message-----
> From: owner-mgs@autox.team.net [mailto:owner-mgs@autox.team.net]On
> Behalf Of James McPhee
> Sent: Thursday, April 23, 1998 9:02 PM
> To: mgs@autox.team.net
> Cc: jmcphee@worldnet.att.net
> Subject: Fuel delivery problem-'79 roadster
>
>
> This is my first message to the list, although I have been on in the
> background for several months. I'm hoping someone can help me narrow
> down my troubleshooting options on this problem.
>
> Background:
> Very stock'79 with approx. 80k miles. I have owned the car for about
> three months and have put about 3k miles on it in that time without so
> much as a cough or hiccup. I drive 30 miles each way to work, combined
> interstate and city driving. Only thing I have noticed is that if I run
> it up though the gears, particularly up a certain uphill stretch, it
> seems that by the time I am topping out in third gear, it begins to be
> starved for fuel. Shift into fourth and all is well.
>
> Problem:
> On my way home tuesday night, on the interstate at 65 mph(about 15 miles
> into the 30 mile trip), car begins to die as if it is running out of
> fuel. Have half a tank. Pull over to the side and keep the engine
> running by "playing" with the throttle. Engine never actually
> dies(unless you take your foot entirely off the throttle), but acts like
> it's not getting enough fuel. If I kept a light, steady foot on the
> pedal, it would rev to about 2500 rpm, drop to almost 0, rev back to
> 2500, over and over again, never actually quitting. When I shut the
> engine off to check under the hood, and then restarted it about five
> minutes later, it started and ran as if no problem. Revved up and idled
> just fine. Started back up on the interstate, just got into fourth at
> about 40mph, and same behavior all over again, as if the float bowl had
> been filled enough to run well for a short while, but as if it was not
> staying filled. When you turn on the ignition, you can hear the fuel
> pump ticking in its normal manner, filling the float bowl. To make a
> long story short, I nursed it up the shoulder the rest of the way home.
> It now sits in the garage awaiting corrective action.
>
> Wrap-up:
> I replaced the fuel filter and air filter right after I bought the car,
> and I have set valves, plugs, and timing, all at least 1k miles ago.
> Stromberg has been untouched since I have owned the car. I have no idea
> when it was last rebuilt. There is a pressure regulator between the
> filter and carb, set at 2.5. I have not changed it since I got the
> car. Not sure which end to start with, carb, fuel pump, or even the
> middle, the pressure regulator. Sure appreciate any and all
> thoughts/suggestions.
>
>
>
> Jim McPhee
> Placitas, New Mexico
>
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