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
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