Chris, What model do you have?
I just yanked my Gori 2-blade prop off my 34/36. I put it on last year and when it first went on the boat shook like crazy. I got 100 yards out of the marina, throttled up then turned around. The yard hauled the boat, check the shaft for true, put it back in the water, aligned the engine, drove it, aligned the engine again. I picked the boat up as the racing season had started, and took the boat 9 hours to a regatta. On the way home I brought it back to the boat yard as the vibration was still bad except for a few RPM bands. I talked with AB marine and they didn't have a 1 1/8' hub but swapped out the blades. The boat came out of the water, blades swapped and went back in. It was better, but when I took the boat out on a cruise, I found the vibration/noise and the complaint of my wife who sleeps in the aft cabin when I leave anchorage early that it was much louder than last year. As I said, I had the yard pull the prop and I am going to contact AB Marine this week. Given everything I went through last year, I am really tempted to just get a martec. If they tell me the prop is fine, then I don't want to put it back on the boat. If they tell me it had to be balanced, I am not sure I trust putting it back on the boat. Eric 34/36 #74 On Fri, Feb 8, 2013 at 7:55 PM, Chris Tassone <ctass...@charter.net> wrote: > ** > Steve, > Thanks for getting back to me. I doubt getting this Gori 2-blade 16.5 x > 11 RH prop rebalanced will help since I already did this and the results > we're negative. After trying to resolve this for the last three years I > think the only solution is a new prop. I relied on your company's > expertise to size this prop for me and I made a mistake that I will have to > live with. If you know of anyone that wants to buy a prop please let me > know. Thanks for your concern. > Chris > > ----- Original Message ----- > *From:* Steve Armitage <st...@ab-marine.com> > *To:* Chris Tassone <ctass...@charter.net> > *Sent:* Friday, February 08, 2013 12:22 PM > *Subject:* Re: tip clearance > > Dear Sir, > > Perhaps the thing to do is have the propeller removed and re-balanced as i > think you have enough tip clearance and don't see this as an issue. Sorry > that i cannot be more helpful than that. > Regards, Steve Armitage > AB Marine, Inc > 747 Aquidneck Ave > Middletown, RI 02842 > sa...@ab-marine.com > 401-847-7960 > > > On Sat, Feb 2, 2013 at 4:58 PM, Chris Tassone <ctass...@charter.net>wrote: > >> ** >> Hi Steve, >> My name is Chris Tassone. I spoke with you at Strictly Sail Chicago >> concerning the noise I get with my Gori 16.5" x 11 x 2rh prop. You >> suggested that tip clearance could be the culprit. My tip clearance is >> 5-1/2". I spread the prop by spanning the blades and hub with a strait >> edge and measured this distance. I also measured the distance on my 1" >> shaft from the cutlass to the front of the prop hub which is 1-3/8". My >> boat is a 1979 C&C 34 with a Yanmar 2QM. The noise is really noticeable >> and could be a concern if I ever try to sell the boat. Would a smaller >> prop solve the problem? I installed a new shaft and coupling when I >> purchased the Gori. I lapped the shaft and checked it with a dial >> indicator. The shaft is aligned. I really appreciate your attention. >> Thanks, >> Chris Tassone >> 231-946-8185 H >> 231-883-1234 C >> > > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > >
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