Vincenti, Ross wrote:
>
> Peter Mchugh wrote:
> Is it true that "backfire" and unburned fuel in exhausts are the
> same...the text below suggests that backfire damages the muffler...but
> seems to me to be a different issue/problem... Any thoughts from
> the list????
> ++++++++++++++++++++
> That's my understanding. Although I would hasten to add that it is a
> "related" problem. Backfiring caused by an overly rich mixture sometimes
> WILL cause mufflers to blow apart. I mean, if you think about it, it's not
> much different than sticking a cherry bomb up your tailpipe. The only thing
> I've never quite understood is why a backfire would blow flame out of the
> carbs, too. I would think that the explosion would go out the tailpipe if
> the exhaust valve is open and not back through the intake manifold. Anyone
> care to take a stab at this one?
>
> Ross D. Vincenti - Costa Mesa, CA
> 64 Spitfire 4
> 64 Porsche 356C Coupe
Uh overlap??
john
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