For some months now I have been trying to diagnose the mysterious 
disappearance of coolant from my 83.5 Westy.  I can fill the expansion tank 
(one with pressure cap)  and the overflow tank (one without pressure cap), 
and within a short period of time, <1 day, the level in the expansion tank 
is down about 1".  It never drops below that.

So it makes sense that I have a leak somewhere.  The weather here in Or is 
getting warmer, and the other day I turned off the heat in the front of the 
van, and drove for a while.  When I came home, there was a large puddle of 
coolant on the ground.  I tightened the clamps on the front heater core, 
valve assembly etc, but it is still leaking only when the heat is turned 
off.

I guess that I should replace the hoses.  Does anyone know what the 
diameter of the hose is.  I am assuming that it is metric, therefore 
probably expensive and difficult to find.....

Thanks for your help.

Byron Peratoner

Tektronix, Inc.
Color Printing and Imaging Group
Finance and Accounting
P.O. Box 1000
Wilsonville, Oregon 97070

(503) 685-3539 Voice
(503) 685-3322 Fax