Reply To: Mercury pressure tank

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July 26, 2026 at 3:13 pm #325152
BobProwse

    This is a very old thread, however, cleaning up and I found a very old Mercury Mark 15 outboard complete with it’s original 2-line pressure tank. I cleaned out the tank, added and 1 gal Fuel & TC-W3 Oil mixed 16:1 and low and beholden the old bugger fired right up. I only ran it a few seconds but at least I know it fires/runs. What the heck does a guy do with these things ?