Rudder cam screws

Anyone have any good ideas on how to get these to come out? They were rounded before I even touched them got new pieces in hand for entire setup. Kinda stuck at the moment

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Drill it out with a 5/8” drill and then chase the threads with a 3/4”-10 tap (or buy a 3/4” bolt from home depot, cut a notch or two in the end with a flat file, and use that to clean the threads). Before you do that, drill out the rivet and pull the cam, spring, and plunger out so they don’t get damaged from the drill.

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drill out... then heat.... then left hand "easy-out"?

The Cams were apparently upgraded to the flat head pins and wont move(assuming because to much pressure from the screw?) Dont want to risk rounding those out to, As soon as I get the old ones out new hardware all lots of marine grease.

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This is a common issue with these old delrin screws. They get frozen in place and the exposed section crumbles when you try to unscrew them. I've seen someone post once that they heated up a screwdriver, stuck it in, let it cool, and then twisted it out, but most of us have had to drill them out.

The unfortunate part is that Hobie no longer supplies the screws or the springs for the old style system. Fortunately, the rudder return system from Murrays (essentially bungie cord around the rudder) keeps the rudders down even with a cam system that no longer functions.

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Mike

'79 H18 standard 'Rocketman II' sail #14921 RIP
'78 H18 (unnamed) sail #14921
'08 H16 sail #114312
'97 H21SC sail #238

Thank you for the advise it went well and all fixed now

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The local shop only had threaded rod when I was doing this.

One end has a cross cut into it with the angle grinder for cleaning out the thread.

The other end has been turned into a 3/4" flat screwdriver that fits the new screw perfectly

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H18 Newbie, Too heavy for the 14

Springs and Delrin screws are still available.


10430000 SPRING RUDDER CASTING


60450000 SCREW DELRIN RUDDER

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Matt Miller
Former - Director of Parts and Accessory Sales
Warranty and Technical Support
Hobie Cat USA
(Retired 11/7/2022)