Flush
and Vacuum
Your
compressor failed
for a reason. There
are two main reasons
why compressors
fail. The number 1
reason is
contamination in the
system. Cleaning
out this
contamination is
crucial to ensuring
that the new
compressor is not
also contaminated.
Number 2 is oil
starvation, where
the system is not
properly lubricated
and thus burns out.
We
require every
system to be
properly flushed and
vacuumed.
We
recommend flushing
the system and
vacuuming, then
inspecting what
comes out through a
coffee filter for
discoloration or
metal flakes.
Always flush and
evacuate before
changing parts.
Always use A/C
system flush
solvent. If it
is not perfectly
clean after the
flush and vacuum, we
recommend
re-flushing the
system. If it is
still not perfect,
then we recommend
replacing the
condenser and
possibly other parts
such as hoses or the
evaporator. Do not
bother flushing a
third time. Many
newer vehicles have
serpentine or
parallel flow
condensers that
simply cannot be
properly cleaned
and must be replaced
at this point.
Oil
Oil
is crucial to a
properly functioning
A/C system. It is
crucial to use a
high quality oil to
ensure that it will
not break down over
time. Remember the
number 2 cause of
compressor failure
is oil starvation,
often from the oil
decomposing over
time. That
decomposed oil can
often be the cause
of the debris in a
contaminated
system. We
recommend a double
end capped PAG oil
or better. Check
the book for the
proper viscosity.
Oil comes as 46,
100 or 150
viscosity. You
will need the
correct type for
your vehicle,
they are not
interchangeable and
higher is not
better. Each
compressor is
designed to work
with certain oil.
Many
of our compressors
come pre-filled with
oil. We can never
guarantee that the
oil is the correct
amount. Most
manufacturers put
just a few ounces of
oil in for testing
and shipping. We
can also never
guarantee the
quality of that oil,
or how long the oil
has been in there.
Oil exposed to
atmosphere can
expedite the
breakdown process.
Therefore, we
recommend dumping
all oil and starting
with a sealed bottle
of premium oil.
Do your own
measuring to ensure
the job is done
properly. Also
check the
specifications book;
many manufactures
want half oil in the
compressor and half
in the drier, some
want all in the
compressor. Don’t
guess, follow the
instructions.
Freon/ Refrigerant
Use
only pure R134 for
R134 systems and
retrofits and pure
R12 for R12 systems.
No exceptions.
There are a ton of
‘Freon/ Refrigerant
alternatives’ out
there. The bottom
line is that none of
those have been
tested to work with
the seals and
gaskets inside our
compressors. We can
therefore not
warranty our parts
when you use these
products. Ensure
that you are only
using refrigerant
from a sealed,
trustworthy source.
Be careful, there
are many of
fraudulent products
on the market.
Drier/Filter
The
drier is the filter
on the A/C system.
Some vehicles have
an accumulator and
some have a receiver
drier, but either
way the internals do
the same thing.
A new drier is
required every time
you change the
compressor, no
exceptions. Inside
a drier is a
desiccant element
that pulls moisture
and debris from the
system. Remember
that moisture from
water is very bad,
it alters the
viscosity and can
ruin a system.
Just like you
wouldn’t change your
engine oil without
changing your oil
filter, the same is
true on A/C
systems. You want
that drier cleaning
your system to
ensure long lasting
performance. You
definitely do
not want
that old drier
dumping debris back
into the system.
O-Rings
Most
modern A/C systems
use O-Rings at every
connection. Half of
all A/C leaks turn
out to be wrong, bad
or improperly
installed O-Rings.
We recommend that
O-rings be changed
with the
compressor. We
recommend that as
you remove an
O-ring, that you
tape it to a piece
of paper and note
next to it where it
came from. This way
if you have a
problem in that area
later, you can
double check that
you used the correct
O-ring.
Expansion Device
The
expansion device is
a generic term. It
can be an orifice
tube, expansion
valve or expansion
block. An orifice
tube should always
be replaced, it
should never be
cleaned. An
expansion valve or
block is a little
more difficult.
They should always
be removed and
inspected or
replaced during a
repair. A stuck
expansion device can
allow too much
pressure to build in
a system and thus
blow out the head of
the compressor.
The
rule of thumb is
that if you are
replacing the
compressor because
it is leaking or not
blowing cold enough,
then cleaning is
acceptable. Any
other failure
requires a new
expansion device.
If unsure, it never
hurts to change the
expansion device.
Electrical
Connections Note:
We make every effort
to supply all
compressors with the
appropriate
electrical
connections.
However, it is
possible that the
connector on our
compressor could be
different that your
application. Most
new compressors are
also supplied
without a connector.
If this is the
case, you may cut
the wire in order to
use your connection
WITHOUT affecting
your warranty. We
recommend using wire
nuts secured with
electrical tape for
these connections.
Most compressors are
shipped without
switches or
sensors. If
switches, sensors
and/or a line
manifold are
necessary, use these
from the old unit.
Clutch/Pulley
Turning Note:
All compressors are
bench tested at
standard RPM's,
However, all
compressors MAY NOT
ALWAYS turn by
hand! Many popular
compressors
(including H6 Series
GM) will NOT turn by
hand. Do not force
it.
Warranty
Enclosed and on our
website you will
find our full
warranty. While our
warranty gets into
extensive detail,
the important thing
to understand about
it is that it is
crucial to do the
job properly.
The A/C system is
one of the most
powerful, violent
and difficult
systems in the
vehicle. Trying to
cut corners will
result in a system
failure. Even if
you think it is
“just the clutch,”
there is no excuse
for not doing the
job properly.
The
first thing we will
ask if you have a
problem is to prove
the above items were
done properly by
faxing over the
receipts. We
require this,
because we know that
if you do the job
properly, you will
probably have no
problems at all.
We
want your A/C to be
working better than
ever. Please feel
free to contact us
with further
questions. Please
note, however, that
while our techs are
the best in the
business they simply
cannot give vehicle
specific
information. They
will often direct
you to the guide
book for your car
for specific
questions.
Please
Click Here for
AC Installation Tips
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Click Here for
Warranty Page
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Click Here for
Warranty Claim Info
