Engine rpms fluctuating - Page 2 - SailNet Community

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Go Back   SailNet Community > On Board > Gear & Maintenance
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  #11  
Old 05-09-2009
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You may also check the ground to the guages, if it's corroded or unattached, the voltmeter will find ground via the engine sensors, intermittently.
Check all the grounds.
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  #12  
Old 05-11-2009
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Update #2

Well, brought the alternator into Ron's Auto Electric in Windsor, ME. Ron stuck it on the big testing machine and confirmed there is something up with the regulator. It's "bouncing"...meaning, the output is fluctuating.

He's gonna pull it apart and check out the regulator.

So...seems I'm on the right track.

Thanks again to all for the input.
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  #13  
Old 05-15-2009
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Update #3 (FINAL!)

Well, picked up the alternator today. Ron said someone previously had decided to paint various parts of the alt. Parts they shouldn't have. Interior surfaces that should be bare to make a good ground were painted.

He cleaned it, tested it and all is good.

I just reinstalled it, cranked up the engine, and all looks great! Gauges steady and volts where they should be. The regulator is regulating correctly.

So...now just a matter of finishing the cleaning & waxing and getting in the water. Hope by end of next week.

Thanks to all who replied! Much appreciated.
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  #14  
Old 05-16-2009
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goood to hear ya got the problem fixed----
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