Radiator Transmission Line fitting

Cougar Community Classic Cougar Community Discussion
1

I’m installing a new radiator today. I’m going to use the old transmission fittings from the old radiator. It looks like Teflon tape was used by the PO. I’ve read that liquid Teflon is better and others say no Teflon is needed.

Any ideas?

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As reference, it looks like the new radiator has tape where the Petcock valve is.

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2

Teflon tape is used to seal threads, but won’t help with flares or compression fittings

3

The factory used a sealant on pipe threads similar to Permatex #2. They never used teflon tape.

4

Thanks for the replies!