At 09:27 AM 5/6/2012, Rocket J Squirrel wrote:
>Yah, my heater box was not sealed with any adhesive, nor were the
>plastic tabs welded. It was just clipped together. I lucked out there.

Yes, they had the evil plan in place, but not the welding
machine.  Lucky devil.

>Now I'm worrying that the bicycle pump cooling system pressurizing
>trick I did yesterday to find the leak in the radiator might have
>caused internal leakage in the engine. I wasn't aware that the
>cooling system had so much pressure in it until I loosened the
>expansion tank cap.

Jack...take a shot of your favorite relaxant and slow down.  This is
the third time I'm telling you.  The pressure cap Will. Not. Permit.
a pressure higher than the design pressure to remain in the
system.  That's what the pressure cap is for.  *IF* you momentarily
overpressurized the system with the pump it immediately vented back
out again through the cap.  The pressure normally in the system at
operating temperature is enough to shoot call it 25 feet in the air.

Yours,
David