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Encore
Explorer
Apr 21, 2015

Leaking Bottle

I have a radiator coolant surge bottle which is made of some type plastic. There is a brass fitting which screws into the top with a small tube connected to it with a clamp. The brass fitting has a small leak around the threads when the tank is hot and pressurized. I removed the fitting and put the white tape on the treads, but the leak persists. Is there a better method/sealant to seal this fitting?

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