[alfa] Re: alfa-digest V9 #1103 Air pump & Cat

["George Schweikle" <schweikg@xxxxxxxxxxxxx>]

Digesti,

For those needing an air pump

>
> Date: Tue, 27 Jan 2004 12:09:30 -0500
> From: alfa@domain.elided
> Subject: [alfa] Re: Catalysts and SPICA
>
> While I don't have any actual experience with the systems that are
available on
> the aftermarket right now, I will say that the overall quality of the
catalysts
> has gone quite a bit up over the last 30 years.  So anything new will be
better
> than old.
>
> As for the air pump...  Tough question.  Assuming your car runs perfectly,
no
> misfires, yes, you need the air pump, and it will work correctly.  The
SPICA
> system is a reduction equation only- the engine runs a little rich to keep
the
> NOx down, and the air reacts with the HC's and CO in the catalyst.
>
> On that note, make sure you get a catalyst that is capable of a constant
air
> pump- I know they are out there.  They will say 2 way catalyst with air
pump.
>
> If you car runs badly, well, it doesn't matter what you do, your catalyst
will
> not likely survive a week.  The energy in the unburnt HC's will easily
melt the
> ceramic substrate- one of the more common failures of the pre electronic
days.
>
> Boy, I wish I kept the air pump I took off my Alfetta- the PO removed the
> catalyst....  You might find one on e-bay.
>
> Eric Storhok
>
> ------------------------------
>
> End of alfa-digest V9 #1103
> ***************************
--
to be removed from alfa, see /bin/digest-subs.cgi
or email "unsubscribe alfa" to majordomo@domain.elided