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DIY Engine Restoration: Refurbishing Rusty Yanmar Motor Parts
3. august 2025 · 26 min · 15K visninger
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Jon, owner of the 46-foot sailboat Antidote, performs a comprehensive restoration of a Yanmar Kanzaki KM3P marine gearbox and various engine components.▶ 0:18 He removes the gearbox output flange using a pipe strap wrench and an impactor, noting the nut features a left-hand thread and requires 60 to 80 foot-pounds of torque.▶ 0:52 After extracting the internal seals with a standard seal puller, he inspects the shifting mechanism for wear and plans to adjust the shim pack during reassembly.▶ 6:21 Jon also prepares the engine crankshaft for professional repair of a damaged keyway by Titus Machining, utilizing 3D-printed braces and custom foam inserts to secure the part for shipping.▶ 11:38 He sources replacement valves, springs, guides, and a stainless steel exhaust elbow from Parts for Engines to upgrade the original cast iron assembly.▶ 16:45 Finally, he cleans various brackets and pulleys with mineral spirits in a DIY container before applying a zinc primer and gloss black powder coat using an Eastwood hobby system to ensure long-term corrosion resistance.▶ 18:13
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