At 09:20 PM 5/5/2012, Rocket J Squirrel wrote:
>Interesting. There was a considerable amount of hissage* when I
>loosened the cap on the expansion tank. And a couple

There should be.  Thirteen psi worth.  Remember you pressurized it
cold.  Normally when it's cold it sits at room pressure, and the
pressure climbs because it gets hot, then drops again as it cools off.

That's why I said to let it cool down completely before trying this
stunt, because all the little leaks that close up in the heat get
caught with their pants down so to speak.

I have to do this with mine soon.  For the first few minutes of
driving if I stop and walk by the engine vent I can smell coolant,
but after ten minutes it's gone.

*You forgot the footnote.  Signed, the sarpint.

Yrs,
d