Re: 91 200q pushing H20 out ofcoolant tank

["Bernard Littau" <bernardl@acumenassociates.com>]

>Need the collective wisdom of the list. Title describes problem.

I would look for a leak in your head gasket, head or cylinder walls -- a
compression test would be a good place to start.

There is also a chemical test you can perform on your coolant that will
detect exhaust/combustion products in the coolant.  Auto parts stores may
carry the chemicals, or a shop can no doubt perform the test for you.

You could also rig an adapter to pressurize a cylinder at a time through the
spark plug hole with the aid of an air compressor.  BTDT.  Keep it 100 psi
for a while and see what happens to your coolant level without the expansion
tank cap on.

Good luck,

Bernard Littau
Woodinville, WA
'88 5kcstq