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FYI concerning Rock Guards

Posted: April 4th, 2007, 9:22 am
by wevans
I noticed last Sunday that the prop would cavitate once I got on plane "not while taking off". It ran fine on Saturday and it had me doing all kinds of searching for the answer :smt012 After looking at everything and not seeing a problem, I noticed that the rod that runs from the cavitation plate down to the skeg was off center by about 1/16th of an inch :roll: since that was the only thing I could find that was not perfect, I used a pry bar to get it exactly centered, took the boat out and it worked good as new :thumbup: apparently it caused just enough turbulence when on plane to make the prop cavitate "figured out that my nephews boy had hit the trim switch down and really pressed the transom saver up hard against the rod on Saturday afternoon" :o maybe knowing this will save someone else the headache of trying to figure it out at a latter date :beer:

Posted: April 4th, 2007, 9:54 am
by Ty one on
Very interesting. I got a Porter skeg guard back in 03 that made my prop cavatate. Got waivel to lower my motor two holes and the prop continued to cavatate. He said he would make me another with a smaller diameter rod. I took the old one off and it is still in my shed. I may need to take a close look at it. I thought it was just my style of hull design making it not work properly.

Posted: April 4th, 2007, 10:00 am
by Sir reel
Wevans, good job of snif'n out the cause :thumbup: :D