Cats and Windows

["Richard R. Coker" <richardcoker@xxxxxxxxxxxxx>]

Say what you will and even though common sense backs your position I have
seen the ceramic pieces of a destroyed cat come up in that great Yamaha
engine in the SHO.

The SHO shop and mechanics in Atlanta report seeing the same in a number of
the SHO engines and claim the cats wear and the pressure created when down
shifting forces some them into the engine.  I can't promise how those pieces
of the cat get in the engine but I can tell you pieces of the cats have more
than once ended up in the engine.
>
> Richard,
>
> C'mon!  The engine is an air pump.  Air goes in the intake side and out
the
> exhaust side.  It's not going to suck catalyticx converter pieces into the
> exhaust side of the engine.  It just WON'T happen.
>
> Now, if a catalytic converter gets clogged, and inhibits the flow of
exhaust
> gases out of the engine, the entire exhaust system ahead of the catalytic
> converter will heat up, to the point where the exhaust manifolds can glow
> red!  That amount of heat, combined with exhaust system restrictions, can
> cause engine problems (warped head, cracked exhaust manifold, perhaps even
> valve damage).  In addition, any non-metal components close to the glowing
> exhaust manifold (spark plug wires, hoses) can melt or catch fire.
>
> So yes, a clogged catalytic converter can cause major engine damage, but
> it's not because the engine sucked catalytic converter pieces in through
the
> exhaust ports.
>
> - -rb

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