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Old 18-05-2011, 10:26   #1
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Thumbs down Kanzaki Hurth KBW10 Gear System

I`ve got a problem that I cannot solve. First seasonwith a new boat. The front gear wont "grab" emmidiately. Reverse is perfect, but to go forwards I`ll have to give her full gas and reverse to low idling before it starts. I`ve changed oil to SAE 30 because the owner before me had ATF-oil in it. Could it be permanent damages from that. Anyone knows where i can find pictures of how it looks inside??
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Old 18-05-2011, 10:39   #2
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Re: Kanzaki Hurth KBW10 Gear System

Are you sure it takes oil i have a hurth hbw 10 and it requres atf.
not sure if that would cause the problem your having though.
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Old 18-05-2011, 11:13   #3
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Re: Kanzaki Hurth KBW10 Gear System

have you disconected the fwd/reverse cable and manually engaged g/box to see if it does go into gear if it does with out revs then you may have prob with the way your cable is in the morse control box ?
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Old 18-05-2011, 11:20   #4
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Re: Kanzaki Hurth KBW10 Gear System

try www.foleyengines.com search bar for tech tip # 39 lots of stuff on hurth .
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Old 14-10-2011, 14:20   #5
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Re: Kanzaki Hurth KBW10 Gear System

I have the exact same problem. Just does not seem to get into forward gear. There seems to be a strong suggestion that a rebuild is warranted. I do wonder about the admonition on another post to use engine oil rather than ATF, the plate says "ATF-A or SAE 20/30".
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Old 14-10-2011, 14:41   #6
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Re: Kanzaki Hurth KBW10 Gear System

Is it a Kanzaki or a hurth???
both take atf, one is a cone clutch, the other is a wet clutch disc transmission.
If you slip when engaging fwd you'll need to replace the trans. I'd say you could rebuild but the cost of parts and labor outweighs or nears the cost of a new trans.
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