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RE: coolant recovery

To: <mgs@autox.team.net>
Subject: RE: coolant recovery
From: "Larry Hoy" <larryhoy@prodigy.net>
Date: Tue, 4 Apr 2000 08:36:57 -0600
> In my 1977 Midget there seem to be TWO recovery bottles.  One is apparently
> used to fill the radiator, because there is no pressure cap on the radiator
> itself.  If the first bottle overflows it goes into the second bottle.
>
>  Allen Hefner

This is the difference between a catch tank and a recovery tank (expansion 
tank).

A catch tank, or bottle, is just that, it catches the overflow of expanding 
coolant.  This coolant
is not returned to the radiator.  This type tank generally doesn't have a 
radiator cap and is not
pressurized.

A recovery tank, or expansion tank, catches expanding coolant and returns it to 
the radiator as
the coolant cools.   This type of tank generally has a radiator cap and is 
pressurized.

You may have either type or both.

In Allen's case the first tank is a recovery tank, the second tank is a catch 
tank.

Larry Hoy


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