[TerryH]

Many folks think they can clean out a badly clogged radiator by hot tanking it or other solutions, but if it is truly clogged, then rodding is the only way to get it truly clean. I had mine done professionally several years ago at the recommendation of Tom Endy, by an older gentleman who had formerly owned a radiator shop. You do have to be careful, as too much force with the rods can tear a hole in the tubes. Nice to hear that you were able to do it yourself!