I wouldnt' think that changing the main would do any good unless it also
runs wierd on the highway with your foot stompin' on the pedal.
look to the idle/off idle circuit. Unfortunatly, I know nothing about
these 'lill carbs, so I'm not much help with specifics. Good luck.
-alfie
On Wed, 13 Sep 2000 MKlepp4335@cs.com wrote:
> 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
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
|