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#1
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Cavitation problem
Hi
I got a 20 Lund Alaskan with a 50 hp Honda. The problem is that the prop loses its bite when there is any chop in the water (2' seas). The RPM will run up to 6500 and I (quickly) have to back it up to about 3000 before it gets it bite again. A real pain. The Transom height is lined up with the plane. The motor has been maintained. The Prop is an 11.2 X 12. The Advise I got so far is: The Lund rep told me the engine size is too small and for that boat it should be 75 hp min. Which I guess is what they come with now. It's rated for up to 120 hp Was told that a different prop size may help. The boat will get up to 30 when empty which is more than enough for me. The problem is more prevalent when its got a load (800 lbs) (I lug a lot of stuff with it). If the problem could be fixed with a prop that does not lose its bit I would probally opt for that since speed is not big a factor as cost of a new engine. Thanks for the ideas Claude |
#2
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Cavitation problem
You might try a Dol fin, they help me on a pontoon application.
Sterling http://floridakeys.homestead.com/Cruisingnotes.html |
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