Salt & Tar · video

What this video covers

Garrett and Ruth replace the heat exchanger on their early 1980s diesel engine while docked in Puerto Escondido, Mexico.▶ 0:12 After discovering significant sludge and debris inside the cooling manifold, Garrett decides to disassemble and clean the system rather than performing a superficial repair.▶ 9:20 He sources a replacement heat exchanger from Mr. Cool for approximately half the cost of the original unit.▶ 2:16 The installation requires replacing multiple gaskets and addressing corrosion-related leaks, which Garrett manages using RTV sealant.▶ 15:22 After sourcing necessary hose barbs, clamps, and oil from a local shop in Loreto, the crew refills the cooling system and performs an oil change.▶ 18:36 The engine runs successfully, though a minor leak persists at a raw water fitting.▶ 21:25 The project serves as a temporary measure to ensure engine reliability for a coastal transit to a boatyard in Penasco, where the crew plans a full engine overhaul.▶ 5:19 Thorough cleaning of the cooling manifold is essential when replacing a heat exchanger to prevent immediate clogging of the new unit.▶ 10:16

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