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Sailing Arthavideo
December 13, 2025 · 5 min · 4K views
What this video covers
Nicole replaces the raw water pump on Artha's Yanmar 3GM30F engine after a persistent shaft seal leak caused by a groove worn into the pump shaft.▶ 0:10 The old pump, sourced from Beaton's, had been running with an improvised fix — a mismatched gasket and a screw — and was visibly deteriorated.▶ 1:19 During removal, Nicole discovers the drive belt is broken, a failure that could have caused overheating.▶ 1:50 She replaces the broken belt by loosening the alternator, then installs the new pump.▶ 2:07 She opts not to replace the second belt, noting a planned serpentine pulley conversion kit makes it unnecessary.▶ 2:54 The new pump is seated and tightened.▶ 3:34 Nicole also identifies the kill cable as the next repair: the current setup requires manually pushing a lever every time the engine starts.▶ 5:03 A broken drive belt found only during pump removal underscores the value of inspecting adjacent components during any raw water pump replacement.
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