I'd suggest it's likely that the higher than design pressure combined with overfilling could well have resulted in overflow ... that's why they put an overflow on the rad after all .... make sure you don't overfill, keep it at least an inch below the fill neck when warm, even 2 or 3", and see what happens - and always check water level when the rad is warm, not cold

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature we find it attached to the rest of the world" John Muir
"When we tug a single thing on an old truck, we find it falls off" me
Some TF series details & TF heater pics & Rust-a-holics Unanimous parking lot