Genesis question

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  • camarohrod
    Member
    • Mar 2012
    • 64

    #1

    Genesis question

    Well I finally got my genesis goin and I am having a problem, when I slowly get into the power and I almost get to full power it wants to make a quick turn right, my setup is 200 amp swordfish, 36/74 1900 leopard, octura x642, it's the 40" genesis hull, single in line rudder, I've tried trimming the rudder all the way left and it still wants to take a quick right, I'm lost so I want to get yalls opinions
  • Mattwarner
    Senior Member
    • Aug 2011
    • 487

    #2
    Is the nylon breakaway screw in the rudder in? Mine snapped without me noticing and every time I hit the throttle it lifted and veared to the right, having said that it would also do something similar when the strut was set too low, I've since offset the rudder (helps a lot) and raised the strut and it's helped a lot.

    Comment

    • motorfixer1
      Member
      • May 2012
      • 36

      #3
      Do you mean that the whole boat dips the right side down into the water, if so that is from the torque of the motor. My genesis did the same thing and I could not get it to stop. As mentioned offsetting the rudder should help along with moving the batteies around. Most monos have this setup or the driveline is offset to one side to counteract this condition.

      Comment

      • camarohrod
        Member
        • Mar 2012
        • 64

        #4
        no i mean the boat turns right, would a three blade prop help any?

        Comment

        • limitedr1
          Member
          • Aug 2011
          • 91

          #5
          I would check your servo mounting and linkage. Also the linkage on the rudder.if loose it will dart until you correct it. As motto said they trend to dip right until on plane. It will also dip left when cutting power or backing off throttle suddenly. It is a skinny boat for how long it is.

          Comment

          • camarohrod
            Member
            • Mar 2012
            • 64

            #6
            It's not the dipping, it's when I slowly give it throttle and I'm already on plane, there's a certain point that I get to right before full throttle that it just starts turning, I made sure my radio wasn't mixing the steering with the throttle

            Comment

            • motorfixer1
              Member
              • May 2012
              • 36

              #7
              Can you post some pics of the setup? Might help.

              Comment

              • 1945dave
                Senior Member
                • Mar 2012
                • 304

                #8
                A couple of remarks. The replies stated here are pretty much right on. If you can try dropping down on the pitch of the prop for a few runs. 1.6 pitch is pretty strong for your setup. Seems most guys that actually own and run a Genesis prefer the M445 prop. Any of the 1.4 pitch props will hep reduce that sudden dart to the right. I will say this though. Your servo and linkage may not be right but that would affect controled turning not so much a straight line aim as there will not be a great amount of left correction introduced to the rudder to keep it straight anyway. We run wedge rudders because they tend to flag straight back with no introduced force and are less sensitive for small movements. When the prop desides to walk the rear of the boat to the left (typical prop walk) this makes the boat veer to the right, NOT dart to the right unless the bow drops down too much. Raising the strut will help reduce this problem also. I am concerned that your balance point may be to far forward. I can state from first hand experience this problem is not one of the more common problems with the Genesis.

                Dave

                Comment

                • Jean77
                  Junior Member
                  • May 2012
                  • 9

                  #9
                  I have the same problem,allso on a mono v hull,dont know the type though.steers and runs great up to half throttle,then dips to the boat to the right and starts turning to the right.3674 on 4s with 40 and 37mm 2 blade props does the same thing.ill be watching closely thanx.

                  Comment

                  • Jean77
                    Junior Member
                    • May 2012
                    • 9

                    #10
                    Any luck sorting the problem out?

                    Comment

                    • sailr
                      Fast Electric Addict!
                      • Nov 2007
                      • 6927

                      #11
                      How is the boat balanced? Sounds like it's running 'wet' (nose heavy). Move your batteries back a bit.
                      Mini Cat Racing USA
                      www.minicatracingusa.com

                      Comment

                      • 1945dave
                        Senior Member
                        • Mar 2012
                        • 304

                        #12
                        This particular boat is one of the most scruitinized and analysized boats of any brand on this forum. I assure you whatever the answer is, it is going to be very obvious and easily corrected. The one possibility that hasn't been discussed up to this point is a faulty rudder servo. Not so common these days with the sophisticated radio gear we typically use, but back in the day, unexplainable boat reactions like this could be attributed to radio glitches caused by metal to metal vibrations sending a radio interference signal that caused severe sudden servo movement. I personally experienced this phenominum and the solution was to change from a metal clevis to a plastic one. More recently I help a friend with virtually the same problem that truly had a bad servo. On shore it appeared to operate perfectly but out on the water with normal vibrations the servo went nuts. Later after determining the problem we could duplicate the problem on a work bench by taking a dremel tool and turning it on and the radio with servo on and then lightly touching the butt end of the dremel to the servo case. Presto the servo went nuts. A normal good condition servo would show no reaction at all.

                        In your case you can try this diagnostic process or just change out the servo and see if anything changes. You can also get this reaction by a bad reciever so be aware it might not be the servos fault. Perhaps not the easiest diagnostic tool to consider but if your pond and retrieval situation will allow you can use this extreme diagnostic test. Disconnect the rudder servo from the reciever and then with no steering whatsoever but full throttle control, launch the boat and see if the problem occurs. Sounds crasy? Perhaps but you can answer a lot of questions by doing goofy things like this. It is always easier to do something like this if you have a retrieval boat or can walk to the other side of your pond. Anyway, we are just trying to give you some ideas as to how to get to the bottom of your problem.

                        Dave

                        Comment

                        • limitedr1
                          Member
                          • Aug 2011
                          • 91

                          #13
                          Nice dave.! Yea just take another body with ya and have him or her snatch it on the other side of the pond. Would tell ya if it was electrical or mechanical for sure......assuming your servo is mounted solid and linkage is all tight. Havent seen the thread starter post in awhile so maybe he got it figured out and didn't chime in and tell us

                          Comment

                          • 1945dave
                            Senior Member
                            • Mar 2012
                            • 304

                            #14
                            Even if the servo linkage and mount is not solid I still believe there is not enough force on the rudder to make the boat dart hard to the right. Slow drifting veer to the right perhaps but not what this boater is describing.

                            Yes, I hope Camaro Hot Rod got this figured out by now and lets us know what it was.

                            Dave

                            Comment

                            • HYDROJERRY
                              Fast Electric Addict!
                              • Jan 2010
                              • 2503

                              #15
                              I dont no about him but i have the exact same prob with my Genesis, i did find out at one point that my servo mount was loose fixed it and still hooks right, so now about 10min ago i just got at traxxas 2075 servo i will try soon,, wright now ive got the hole boat gutted and sanded down to repaint so it will be awhile before i get to try it again..

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