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Author Topic:   Solenoid Clicked But Starter Not Engaged
cohasett73 posted 04-22-2012 08:52 AM ET (US)   Profile for cohasett73   Send Email to cohasett73  
My buddy Steve Salick called and said the 1989 Mariner 60-HP outboard engine on his 1973 Cohasset II would not start. Would I came over and check it out? Met him yesterday morning to look things over. A multimeter read 12-Volts, but when the ignition key was turned on: nothing, just the solenoid trying to engage. I checked the electrolyte of the battery and that was perfect. I was running out of guesses when I asked Steve to remove the conductors from the battery terminals. There was the problem: a heavy coating of lead oxide on the terminal faces. I had Steve bring me a Dremel with a wire cup wheel with which I cleaned the oxide from the lead terminals. There was also a Craytex wheel in the Dremel kit, so I polished the conductor terminals gleaming bright. Afterward we greased everything, clamped the conductors on the terminals, turned the ignition key, and the engine started instantly. This a fresh water boat so I was very surprised how heavy the oxide build up was on the battery terminals.

Tom from Rubicon, WI

contender posted 04-22-2012 10:44 AM ET (US)     Profile for contender  Send Email to contender     
You need to keep a coat of grease or some type of battery connection protection on the terminals to prevent [oxidation]. This also causes the battery from not charging correctly and puts a heavy load on the starter when turning the engine over. Keep the battery connections clean.

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