Broken Marine Engine Heat Exchanger - How we 'Unbroke' it!

I'd been asked to repair a badly corroded heat exchanger from a small marine engine.
This involved machining some new parts, then a trip to Maximus Ironthumper's workshop for a bit of blasting, spraying and burger eating before heading down to the boatyard in Plymouth for fitting and testing.

No vessels were sunk in the making of this video!

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