In a message dated 9/13/00 7:05:04 PM Pacific Daylight Time,
MKlepp4335@cs.com writes:
> Help gang,
> I am experiencing another problem with my rebuilt 235 engine. It drinks
> gas and runs very rich! Plugs get super sooty after only a few minutes of
> idle time. Tailpipe sooty also, smells of rich mixture while running.
> Engine stumbles and wants to pop (backfire) when accelerating. Here's
what
> I've checked and all seems good: Float level, choke (manual) accel pump,
> fuel filter, air cleaner, points, wires, cap, plugs, timing, valve lash,
> mechanical advance, vacuum advance, compression, carb (rebuilt recently),
> and
> even tire pressure! I changed the main fuel jet down to a 46 and it
seemed
> to have no effect.
> I know it is either too much gas or too little air causing the
imbalance,
> but can't find anything to save my soul. Any ideas/experiences?
>
> Mike Klepp
> '48 3100
> Wichita Falls, TX
Mike,
Does adjusting the idle air mixture screw have any effect on engine speed?
Mike
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