If you were on the ground, she will overheat eventually regardless (unless you have a good, cool headwind).I guess I may have been hard on her...the hangar boys had me fix a "Vacum Pump?"
Could that be why she was hissing at me?
Use as little power on the ground as you can get away with to keep the temps as low as possible. Get airborne ASAP, and keep the radiator FULL OPEN for all ground ops, and prior to landing.
Best regards,
Robin.