71 Series Coolant

[chessie4905]

replace defroster radiator ( recore) a few years ago. had a tiny damp spot on floor in shop under the drain hose for defroster rad. slowly more noticeable after a few years. when I bleed it with new core, just opened bleeder and since it is a little lower than the rest of cooling system, bled nicely. reopened bleeded twice after that in next couple of days and no more air.