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Nautiduck
Master Marine Consultant

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USA
3704 Posts
Response Posted - 11/08/2007 :  12:35:26  Show Profile
We leave our OB on the boat all the time. No more liftin that heavy sucker for me. All basic maintenance can be performed with the OB mounted.
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sweetcraft
Admiral

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USA
816 Posts
Response Posted - 11/10/2007 :  00:22:23  Show Profile
Mine stays on too. Bolted and locked with a cable. Made a cover that extends all the way down and over the controls and wires.
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Tradewind
Admiral

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USA
531 Posts
Response Posted - 11/12/2007 :  14:34:18  Show Profile
Update on the broken Honda, broken rocker arm, stuck and possibly bent valve. Not sure how mud daubbers caused that.
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Sloop Smitten
Master Marine Consultant

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USA
1181 Posts
Response Posted - 11/12/2007 :  15:40:06  Show Profile
Steve,
The mud daubers built a nest on the teeth of the timing wheel, or crankshaft wheel, which allowed the timing belt to skip over those teeth. It is absolutely imperative that those two wheels are aligned properly or you will have valves open when the cylinder reaches the top of its' stroke which is where the valves reside. Because the valves were open (which extends them into the cylinder), when they should not have been, it allowed the piston to hit them bending the valve and ruining the rocker arm. If the piston is not damaged you can probably have the the valve and the rocker arm replaced. The head is already off and that kind of repair is not out of the question. Piston or head damage is usually a more serious result of this type of scenario and would need to be evaluated. Same thing can happen to most overhead valve automobile engines when their timing belt breaks. The mud daubers causing it is one for the books though!
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Tradewind
Admiral

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USA
531 Posts
Response Posted - 11/12/2007 :  18:32:18  Show Profile
Thanks for the explanation, Joe. I have a friend, mechanic, that has it apart now working on it. He's never worked on a 4 stroke OB but he says an engine is an engine and believes he can fix it. He's rebuilt car engines and he says there's not that much different in the basics. Hopefully he can fix it and we'll find a use for it, I'm still planning on an almost new Tohatsu.
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Sloop Smitten
Master Marine Consultant

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USA
1181 Posts
Response Posted - 11/13/2007 :  09:42:19  Show Profile
The good thing is the damage was done when you tried to start it, not under high RPM's. My bet is he replaces the valve and rocker arm and you'll be ready to go with a wary eye for mud daubers.
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bear
Admiral

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USA
909 Posts
Response Posted - 11/13/2007 :  18:34:12  Show Profile
Not sure what moves the rocker arms on a Honda outboard but I hope your mechanic looks at the mechanism [push rod] that moves that rocker arm....
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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts
Response Posted - 11/14/2007 :  09:25:05  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by bear</i>
<br />Not sure what moves the rocker arms on a Honda outboard but I hope your mechanic looks at the mechanism [push rod] that moves that rocker arm....<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">The current models are SOHC. He should check the lobes.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.