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[quote=Edchris177]Same system as the bigger Nacra's. I see plastic cams, they are probably OK, as the boat is not that old, but make sure the lines are not slipping- you need a "hard" line vs some of the softer ones. The line may be new, but if it is stretchy, it will allow the blade to move back.
There should be a white delrin screw in the casting, near the bottom where the rudder would contact the casting. If it is standing proud, (on the inside), screw it further out to allow the rudder to tuck further under.
It's a bit of a pain, at least on the older ones as the slot faces the transom, you have to remove the casting to gain access. (I turn mine around so the slot faces rearward- the rudder resting on the slot doesn't seem to harm it). If you disconnect the tie bar, the casting may swivel far enough to give access.
Use a large screwdriver, or make a tab to fit the slot, if you try it with a smaller looser fitting one you will wreck the slot. You may wreck it anyway, they tend to get stuck. You may be able to use a hacksaw & cut a deeper slot, or grab the end with vice grips.
If all fails,file/grind the protruding end, inside the casting to allow the blade to seat deeper. 
It may not take much, a 1/4" at that adjusting screw will equate to 1", or more at blade tip.<em>Edited by Edchris177 on Sep 26, 2017 - 05:16 PM.</em> [/quote]

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