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First recorded activity by BoatBanter: May 2011
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Default Mercruiser 170 charging system

On 5/21/2011 7:17 AM, tem wrote:
I have 1986 Mercruiser 170 (mdl MCM 170) w/ 2 battery system. This may
be a dumb question, I'm not a mechanic. My volt meter reads 12.3 on each
battery when engine is not running and 12.2 after I started it. Does
this mean my charging system is not working? Any help or advice is
appreciated.




Could be. Check it with another voltmeter to be sure.
 
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