Bad Setrab 34 Row Oil Cooler, need help

Trips

If your leak is coming from the adapter fitting that screws into the core? disconnect the oil line and remove the adapter fitting and use teflon tape or some other sealant on the adapter fittings threads, And reinstall it with care you don't crank down on it or you're going to damage the threads

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scruffydog

originally it was from the fitting, but now I see not leakage at the fittings, it's now below the fittings, i'm afraid it's the core that's damaged. I see leakage about 3 cm below the fitting. I wonder if i Punctured it. It's not leaking at the threads anymore.