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Old 06-18-2016, 09:40 AM   #21
MurrayM's Avatar
City: Kitimat, North Coast BC
Country: Canada
Vessel Name: Badger
Vessel Model: 30' Sundowner Tug
Join Date: Jul 2012
Posts: 2,395
Good sleuthing

If that connection is badly rusted, there may be others. Our Yanmar wouldn't start one day and it turned out to be corrosion on the ignition wire connection on the starter (found it 5 minutes with the help of the trouble shooting section in Nigel Calder's book) so it seemed to make sense to check & spray all electrical connections.

Hope it's that simple!

"The most interesting path between two points is not a straight line" Murray Minchin
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Old 06-18-2016, 10:34 AM   #22
City: gulf coast
Country: pinellas
Join Date: Jun 2014
Posts: 1,756
Once you get it clean a little dielectric grease will reduce future corrosion.

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Old 06-18-2016, 12:55 PM   #23
City: Hampton Va Back River
Country: United States
Join Date: Jan 2016
Posts: 715
You can pull the connector out and examine its condition, usually a little prong must be depressed on the wire side. The connector could be loose and corroded on the inside. High resistance makes these overheat, then the metals loose spring tension.
Cleaning the outside wont do much.

Usually these are tin coated, I have cleaned some of these with white vinegar, which can strip the tin. Then you can grease it or spray it with some oil.

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