The leak appears to be coming from the left-hand "temperature sender -
injection"; the drawing shows a seal under it.  I suppose I'll get a new
o-ring and try replacing it...

There is also a pool of liquid around the expansion chamber level sensor,
so I guess that its o-ring is dead, or maybe the entire sensor...

What are we supposed to do with drained coolant these days?  I imagine that
down-the-gutter is somehow harmful to the environment (or maybe just my
cat).

bcnu - G (John Gladu)  .Opinions are just that.
Systems Support Center -- Baylor College of Medicine
INTERNET: jgladu@bcm.tmc.edu  | VOICE: (713)798-7370
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plid  n. an Oreo cookie with that was reassembled after the creme
        filling was licked out