Tag Archives : Yanmar

Yanmar 3YM30 Exhaust Elbow Replacement

During my normal engine checks I noticed rust below the starboard Yanmar exhaust elbow. This can be a huge deal because if the inner tube has a rust hole, the raw cooling water can be pushed into the cylinders and hydrolock the engine. So for a week we limited the starboard engine to anchoring until a new exhaust elbow could…

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Cleaning Yanmar 3YM30 Heat Exchangers

Two engines means two chances to get it right. Or to screw it up… Clip the zip tie holding the coolant hose Remove the alternator belt guard Remove the lower bolt from the back side of the alternator Loosen both the front and back bolt holding the alternator Remove the alternator belt Remove the alternator cables Zip tie the alternator…

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