FWIW, when I installed my air conversion from Tanner he told me an oiler
wasn't necessary. The early kits had an oiler, but was deleted later. A
dryer was not an option nor recommended. My system held up well from 0 deg
to 110 deg. without problems. I've had no corrosion.
GM
-----Original Message-----
>Gentlemen,
>
>
>By the way, there are two additional things you need to consider for the
>compressor system whether its vacuum powered or electric.
>
>You probably need some sort of an air dryer for the compressor. This is
>necessary if you expect to avoid corrosion in the air door system. The
>types of dryers you find on large stationary compressor systems aren't
>appropriate as they are usually just water traps that depend on the
>water vapor condensing along a pipe run and collecting at a deliberately
>established low point in the system. Whenever you compress air it gets
>hot and any water vapor in the air won't condense out until the air
>cools.
>
>The short tubing runs inside a car probably won't allow the compressed
>air to cool sufficiently to release the water vapor before it reaches
>the air storage cylinder and possibly the valves and and door pistons.
>The only thing that probably protects the valves and pistons is any
>grease that has been applied and this will eventually succumb to any
>water that collects leading to corrosion inside the system where it
>isn't visible.
>
>One type of dryer that would be more appropriate is the dessicant type
>that removes water vapor from the incomming air stream with an absorbant
>material. These sometimes have the exhaust air for the pistons routed
>back out through them to "recharge" the dessicant , but may require
>periodic replacement or heating to make sure they are absorbing the
>water vapor.
>
>Does the system Terry Tanner sells have a dryer? Does anyone have a
>compressor that has one? Does anyone know if there is a water trap or
>drain anywhere in the system?
>
>The second desirable feature for the compressor is an oiler that
>introduces an oil mist into the air stream. Shop compressors sometimes
>don't use oilers because they contaminate the air for painting, but
>compressor systems that are used to run air tools and machinery like
>pistons usually have an oiler. Obviously, the oil must be topped up
>occasionally. A good oiler might compensate for lack of a dryer, but if
>water collects in the system, there will eventually be corrosion.
>
>Any thoughts or experience with these things? How many people have
>found corrosion inside their air door system?
>
>
>George Schiro
>
>
|