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don wright
Joined: 15 Oct 2009 Posts: 111 Location: GP
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Posted: Mon Jun 14, 2010 4:37 pm Post subject: porpoising harbercraft |
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i just know someone's got the answer to this one.....my harbercraft extreme opti 200 porpoises badly with any amount of weight in it in deep water. ive heard of shimming it or wedging it. not sure if its meant by wedging the uhmw at the very back to make a fixed trim tab or if i can change the jet angle some how. been this way since new
help _________________ THE WORSE THE DRIVE.....THE BETTER THE RIDE |
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gotboost
Joined: 30 Sep 2009 Posts: 41
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Posted: Mon Jun 14, 2010 5:23 pm Post subject: |
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yeah we have an harbourcraft to and it did the samething give me a call on my cell phone 780 623 8484 and i will lead u in the right direction |
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don wright
Joined: 15 Oct 2009 Posts: 111 Location: GP
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Posted: Mon Jun 14, 2010 5:59 pm Post subject: |
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its to bad 50k wasnt enough...................... _________________ THE WORSE THE DRIVE.....THE BETTER THE RIDE |
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jethead
Joined: 19 Apr 2008 Posts: 22 Location: Fort McMurray
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Posted: Mon Jun 14, 2010 8:44 pm Post subject: |
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Mine did the same. You can buy a 3 degree wedge from outlaw that inserts between the stator and the rudder and will direct the jet down. Helped for me. I did, however, also end up adding trim tabs. |
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don wright
Joined: 15 Oct 2009 Posts: 111 Location: GP
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Posted: Mon Jun 14, 2010 11:50 pm Post subject: |
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has harbercraft come good on any of these costs for anyone? the boats are all new doing this its sounds like the extreme is a bouncy boat. trim tabs will never last with my river habits im afraid. _________________ THE WORSE THE DRIVE.....THE BETTER THE RIDE |
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Jigger
Joined: 12 Jan 2010 Posts: 57 Location: Pollockville
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Posted: Tue Jun 15, 2010 6:40 pm Post subject: |
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I've got a Thunderjet and it does the same thing on smooth water such as a lake. |
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Coyotitto
Joined: 19 Sep 2005 Posts: 54 Location: Red Deer River
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Posted: Wed Jun 16, 2010 7:11 pm Post subject: |
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there is a simple fix for this problem. most of these boats have a small amount of bottom over hang past the transom using a LARGE crescent wrench start from the outer edge of the chine and bend it down 1/8 to 3/16 of an inch working your way to the center of the boat.This will control the porpoise in deep water or with heavy loads but not affect handling or shallow water issues with add ons such as trim taps. |
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Jigger
Joined: 12 Jan 2010 Posts: 57 Location: Pollockville
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Posted: Wed Jun 16, 2010 9:50 pm Post subject: |
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Thanks for the help. I'll give it a shot. |
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don wright
Joined: 15 Oct 2009 Posts: 111 Location: GP
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Posted: Tue Jun 22, 2010 1:04 pm Post subject: |
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ya thanks. i ended up taking the cheap way and instead of bendind tabs down which wlda been even easier i put telfon wedge between the alum and existing teflon. works good......little to good. i went with 3/8 wedge . ya 1/8 to 3/16 will be trick thanks guys goin to princess to get a big adjustable trim tab tool. _________________ THE WORSE THE DRIVE.....THE BETTER THE RIDE |
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madtacc
Joined: 31 Mar 2010 Posts: 17 Location: Medicine Hat
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Posted: Thu Jul 01, 2010 1:48 pm Post subject: |
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do you have some pictures of your fix, mine does the same thing in deep water it is really anoying , the only way to stop it is to turn or slow down |
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Rapid Transit
Joined: 20 Jun 2005 Posts: 206
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Posted: Mon Jul 05, 2010 12:04 pm Post subject: |
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Shallow Draft had the same problem with his boat....he simply moved his cooler closer to the front, as the gas tank went down so did the cooler, all had a good day , and he thinks the boat worked great!!!! |
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sandman
Joined: 15 Jun 2005 Posts: 260 Location: The captains table
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Posted: Mon Jul 05, 2010 12:30 pm Post subject: |
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Good one Rapid!!! _________________ It was like that when I got there! |
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