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Old 07-05-2011, 08:36 PM   #1
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Default Ignition or starter motor?

Something that has happened since i owned the boat and happened to the last owner but seems to be getting worse. I can turn the key and get a faint click from the engine bay, turn off turn on for about 10 times and it will then turn over, would it be the ignition or the starter motor on its way out?

We have lived with it, but now get worried when we stop a long way from home that the engine wont start
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Old 07-05-2011, 08:54 PM   #2
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The clicking you hear is the solenoid on the starter motor engaging but there isn't enough current to the starter to turn it, or the motor itself is going bad.

When it finally turns over - does it sound "normal", as in nothing wrong at all?

If yes, could be the starter, but could just as easily be dirty or loose connections. I would eliminate the latter by checking the cables at the battery and the positive cable from the battery to the starter and the negative cable where it connects to the engine block. In fact, remove that neg cable from the block clean the end of it and the surface on the block to which it connects, then reinstall.

But do so carefully. Removing/installing those cables may cause a spark so make certain the bilge is free of gasoline fumes by letting the engine compartment air out for a spell while running the blower.

Dan
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Old 07-06-2011, 12:46 AM   #3
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Warpa,
I just solved this same problem after fighting it for a year, replacing the starter motor and rewiring the corroded fuse block didn't solve the problem. I finally traced it to the slave solenoid on top of the motor. Follow the trouble shooting at this address: http://www.sterndrives.com/no_crank_condition.html

2009-08-18_204522_mercstartingsystem.jpg

I would have to repeatedly turn the switch to get the engine to turnover. Turns out that when I opened up the solenoid it was arc striked on the contacts. New solenoid is ~$20. Good luck.

-JP
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Old 07-06-2011, 08:31 PM   #4
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[QUOTE=CountryME;16295]Warpa,
I just solved this same problem after fighting it for a year, replacing the starter motor and rewiring the corroded fuse block didn't solve the problem. I finally traced it to the slave solenoid on top of the motor. Follow the trouble shooting at this address: http://www.sterndrives.com/no_crank_condition.html

Attachment 1315


That could well be it, when it turns over it turns over fine, i will check connections 1st. Hopefully it will be a cheap fis for once

I would have to repeatedly turn the switch to get the engine to turnover. Turns out that when I opened up the solenoid it was arc striked on the contacts. New solenoid is ~$20. Good luck.


EDIT* do you have a part number by any chance?
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Old 07-07-2011, 12:02 AM   #5
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Slave Solenoid P/N: 89-96158T

That's the part # for my 2000 4.3L v6. Good luck...the piece of mind you get when the motor turns over every time you turn the key is worth the small investment.

-JP
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Old 07-07-2011, 07:48 PM   #6
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Thanks man
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Old 07-07-2011, 10:02 PM   #7
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You might want to check out the ignition switch. Mine was doing almost the same thing. I would turn the switch and it would just go "clunk" and not turn over. I would continue to try and start, and finally it would turn over. Finally the switch just totally gave out and I could turn the key 360 degrees. So what was happening was the key would actually go past the connection and not start. Replaced with a new ignition switch ($19 and 15 min) and everything is fine now. After I had the starter rebuilt and the solenoid replaced.
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Old 07-08-2011, 02:59 AM   #8
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You also have the emergency kill switches (little red buttons with lanyards attached to them) in the loop. Since they are rarely used they can corode over time.
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Old 07-11-2011, 01:29 AM   #9
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Great question! My 2000 1900SR is doing the exact same thing. I just went outside and checked the voltages on the slave solenoid. Yep! That was the problem. I shorted out the two top terminals with a wrench, and it turns over every time. Gonna go pick up a 89-96158T at the local shop tomorrow. Thanks for the info guys. That's what I love about forums...one person's question may answer several peoples problems. :-)
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Old 07-11-2011, 02:35 AM   #10
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Brewyet, don't throw out that old slave solenoid. Open her up, take some emery to the contacts and slap it back together...you now have a working spare! And if you break it taking it apart, it was junk anyway.

Glad others could learn from my troubleshooting saga.

-JP
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