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PostPosted: Thu Jul 15, 2010 10:25 pm 
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Joined: Thu Jul 15, 2010 10:04 pm
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Hi all

The bottom rudder gudgeon on my hobie 16 broke, followed by the top gudgeon breaking, pulling out of of the gudgeon screws from the hull. I was on a down wind run with a long distance to travel before could beach the boat. I sailed in on one rudder, with the departed rudder and cross bar trailing behind the boat.

A few questions:

Is there a back plate which the gudgeon screws go into?

I would like to avoid cutting a hole in the hull to put a back plate or other material in place for the gudgeon screw. I was thinking of drilling the current screw hole to a larger diameter, putting a stainless steel stud with a 90 degree bend into the hull and using epoxy to hold in place. The stud would be machine threaded. I would use a nut fastened to the stud to hold the gudgeon in place.

I know that I am not the first hobie owner to face this issue. Ideas?

thanks. Shane


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PostPosted: Sat Jul 17, 2010 9:53 am 
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There is an aluminum plate that's glassed into the transom. The gudgeon bolts are threaded into it.


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PostPosted: Sat Jul 17, 2010 8:18 pm 
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Location: Shreveport, LA
If you drill a slightly bigger hole, you should be able to re-tap the threads and either use a heli-coil to make it the same size hole (not really sure if a helicoil will take the stress though) or use a larger bolt.
Good luck.

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PostPosted: Sat Jul 17, 2010 9:50 pm 
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thanks. I'll try re-drilling


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PostPosted: Mon Jul 19, 2010 6:36 am 
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Location: Jersey Shore
Drill & tap the hole up one size to 1/4-20 if there is enough material remaining. (The current screws are #12-24).

Or, purchase the new one-piece gudgeons. Then you can proabably skip the damaged hole and relocate a new hole nearby.

sm


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PostPosted: Mon Jul 19, 2010 9:55 pm 
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Ok, I have ordered the one piece gudgeons. My boat is a 1976 model. The hole pattern doesn't line up with the one piece gudgeons? Do i need to drill all new holes and plug the old ones?

shane


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PostPosted: Tue Jul 20, 2010 11:32 am 
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Location: Oceanside, California
You will elongate the holes in the casting to fit.

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