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post #2 of Old 10-16-2013
trantor12020
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Re: Yanmar 3YM20 New Raw Water Pump Install Questions

1. Raw water = Sea water
2. Don't tighten the belt too tight like mentioned in manual. A little slack prevents damage to pump shaft.
3. You should be able to turn the pump/pulley without belt, its tight but doable.
4. You could grease the impeller with glycerine or Superlube.
5. Don't throw away your old pump. Recondition it and keep as spare.

Ken
2002 Hunter 326, SV Millennium 2
1999 Macgregor 26X, SV Millennium
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