Might be worth a try if its not a very sharp prop. Mine is not a fast boat like that, but I had that happening to me at just over 40mph with one particular prop, turned out it needed sharpening up a bit, then the left right jiggle went away. None of use check all the bushings often enough, I dont have the power most of you guys on here have, but even I have found a bit of slop causes terrible problems. I would check the thru tube bushings and if they are bad gets some nice shims made up from nylon or the Delrin to take out the slop. I bet if you get on the floor and tug at the skeg when its on the trailer that engine will show up loads of movement left right and backwards forwards too.
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This puts a lot of strain on the transom on the jackplate and on the brackets of the engines, its like a constant smash with a big hammer all the time when water is a touch choppy.Įven with just 2 lower mounts pinned my engine behave much better. Ive watched so many engines on you tube showing their jack plates etc, I watch the actual motor to bracket and cannot believe how much movement some of these engines have.
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Whatever you choose its going to be a better controllable ride at full throttle than soft rubber mounts. You can get Delrin with ptfe impregnated too nowdays, so it would also have good anti seize properties.ĬOST would be the limiting factor of either material, what is cheaper ? Delrin or Billet 6061 5075 etc.
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Many parts in automobile bushing are now being made from Delrin, so its obviously a very tough plastic/polymer, and would be better for ant-corrosion properties. If the Delrin was to be of a noticeable amount better as in anti-vibration then it wouldn't be doing its job. I think the Delrin will give the same amount of vibration as billet aluminium to be honest.īoth will need to be tightened up so no slop at all ( thats the whole point of solid mounts) and both will give similar vibration.