Re: mail Digest for 21 Mar 2005 in hour 16:00

[Tom Jennings <tomj@xxxxxxx>]

On Mon, 21 Mar 2005, Peter Marano wrote:

> the York type compressors
> > SUCK.
>
> And they compress, and forever apparently, I have never had a York fail.
> The last non York that failed cost just a little over $400.00 (compressor 
> only).

I don't doubt that they are reliable.

Apparently what makes them "bad", relative to the Sandens, is that
they are most efficient at low engine speeds; lots of cool at
idle! But this is what overloads the cooling system, when the
water pump, fan etc is turning slowest. Efficiency drops with
increased RPM.

The Sandens are very efficient, seven pistons (depends on model)
and a wobble plate. They too last a long time. They cost $250 or
so new. Output goes up with increased RPM; they are efficient at
higher RPMs. So, at idle less heat produced, less overheat load on
the engine. More cool at highway speeds with less gasoline.

Sandens are available with flare fittings and prefilled with R12
compatible oil. They will bolt into a York bracket with an
adapter. I did precisely this in my 1975 Gremlin, factory stock

evap unit and all. Worked great, far, far better cold at speed!