Are you overfilling the radiator? These radiators are designed to only be filled (when cold) to just above the tubes, about 1" to 1 1/2" below the bottom of the neck. I think there may even be a fill line on the radiator.
Jeff Nelson
"Beer is proof that God loves us and wants us to be happy." - Benjamin Franklin "Always do right. This will gratify some people and astonish the rest." - Mark Twain
