Hobie rudders?? :: Catamaran Sailboats at TheBeachcats.com

Hobie rudders??

gcamick

Rank: Mate

Registered: Dec 21, 2009

Last visit: Apr 16, 2013

Posts: 127
Posted: Apr 16, 2013 - 01:48 PM

A friend bought a Hobie and we are trying to figure out the rudders. Can someone explain their basic operation. Are we overthinking this? The boat I think is a early 90s. Is the black cam pictured in the 1st photo in the correct orientation?

or is this correct?

Thanks in advance.

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Gray Amick
Chapin, SC
'77 NACRA 5.2
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optikid

Rank: Mate

Registered: May 29, 2011

Last visit: Mar 13, 2016

Posts: 332
Posted: Apr 16, 2013 - 01:57 PM

two is correct
nacra55

Rank: Mate

Registered: Nov 02, 2004

Last visit: Aug 07, 2023

Posts: 626
Posted: Apr 16, 2013 - 03:45 PM

Upper rudder casting is early 80's or before and those are the original cams for the casting.

--
Ron
Nacra F18
Reservoir Sailing Assn.
Brandon, Mississippi
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the-renovator

Rank: Mate

Registered: Sep 29, 2012

Last visit: Jan 10, 2018

Posts: 441
Posted: Apr 16, 2013 - 08:37 PM

Gray, try looking in the Technical Albums, lot of info posted there, lot of time spent on posting that info for the benefit of others.........

http://www.thebeachcats.c…56caf11ff7f0e7c4621ae8d7

Remove rudders, remove delrin (plastic) screw underneath the cam from the underside (carefully, use large flat head screwdriver and try not strip the delrin screw head), inspect and remove cams, remove springs and plungers, clean housing with break cleaner, clean springs and plungers, use silicone grease sparingly inside of casing, lubricate delrin screw and replace, replace spring and plunger, replace cam (if cam is damaged, replace with new cam). Set cam tension using delrin screw.

http://discoverysailing.o…uild-h16-rudder-cam.html

https://www.youtube.com/watch?v=nDckg7uZ32k
pbegle

Rank: Mate

Registered: Mar 12, 2003

Last visit: Feb 19, 2021

Posts: 879
Posted: Apr 16, 2013 - 09:27 PM

To replace the cams you will need a very sharp titanium drill to remove the rivit which loves to spin when you drill. The replacement cams are $33 each with the sister screws. Sometimes easier to lubricate from above & use a loop of 3/8 rope to jerk cam to UP position when you leave the beach. Pete
HULLFLYER

Rank: Mate

Registered: Aug 06, 2004

Last visit: Oct 20, 2024

Posts: 878
Posted: Apr 17, 2013 - 06:02 AM

When installing new cams, buy the Hobie tool that assists in getting the cam back to the proper condition. I think it cost about $7. You will have to drill a 3/16 hole in the flat portion of the cam. The instructions come with the tool. If you have the tool with you, it enables you to get the cam back in proper condition while on the water, if you need to do so.
optikid

Rank: Mate

Registered: May 29, 2011

Last visit: Mar 13, 2016

Posts: 332
Posted: Apr 17, 2013 - 12:20 PM

Just use a screw driver to push it up