Trevor,
Let it be known that I have no interest in reading about emissions stuff on
Spitfires! WHy?
Because I have no Spits that require emission equipment,
nor do I have any intention of obtaining any. Therefore, I have not
explored what all those
components do. All I know is that since the law mandated
such equipment, the power of our Spitfires has steadily decreased as the
engine sizes increased.
Any advice I give is from experience. YOu ought to try that a bit instead
of quoting your beloved
"Books".
Here's a what I know about air pumps: My older brother removed the air pump
from his 68 Camaro in
an effort to improve it's performance. THe result
of his efforts was that he could no longer keep oil in the crank case. It
vented from every
possible orifice. SOund familiar to anyone? Now, I have
no idea if that air pump worked the same way that the Spit one does, but it
is very likely that they
do. Coincidence? Cause and Effect? Draw your
own conclusions.
Just don't knock me for passing on my own observations and fixes to people
who have the same problem
that I did.
Joe
Trevor Boicey wrote:
>
> Atwell Haines wrote:
> >
> > At 12:16 PM 3/30/2001 -0700, Joe Curry wrote:
> >
> > >The real problem in most cases is the 1500 was generally a closed
> > >breathing system and the air pump was an integral part of that system.
> >
> > Joe, I'm having trouble visualizing the point about the air pump. The
air
> > pump on my '79 blows through a one-way check valve into a single port in
> > the stock exhaust manifold. How could that pressurize the crankcase?
>
> You are correct Atwell, the air pump is not a part
> of the crankcase breathing system.
>
> Joe, we love you man, but you gotta hit the books
> a bit. It's disconcerting to see emails that mix obvious
> misconceptions and friendly-sounding advice.
>
> --
> Trevor Boicey, P. Eng.
> Ottawa, Canada, tboicey@brit.ca
> ICQ #17432933 http://www.brit.ca/~tboicey/
> "Hail to thee, oh wide screen TV..." - Johnny Bravo
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