1969 Rad/Heater Hose Clamps and Nipple Fittings

1969 Chrysler 440/505, everything is new, overhauled or rebuilt. I've put about 2000 miles on the car since May and now the rad/heater hoses are starting to seep/drip.

1. Noticed a few drips on the lower radiator hose coming from the water pump side. Tightened screw type band clamp, worked for about a week, clamp loose again.

2. Heater hose nipple fittings seeping, 1/2" and 5/8". These were fresh install in May. What type sealant and/or thread tape are you using?

At initial rebuild I...

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Author: MJFUR