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Old 10-15-2013
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Yanmar 3YM20 New Raw Water Pump Install Questions

I am going to install a new Raw Water pump (which is it Raw water? Sea Water? Just Water? I've heard them all....)in my Yanmar 3YM20 engine. Is there anything that I should do to make things last longer? I have brand new belts, anything else? Also should I be able to easily turn the pump? Its stiff, and wont turn, I do not want to force things if it will do damage, my thoughts are it needs water to lubricate the impeller. Do I need to spray any lube into it before install? Just checking before I install. Thanks!
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