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 Catalina 250 Specific Forum
 Centerboard slap blues		  New Topic  Topic Locked
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sterngucker
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USA
169 Posts
Initially Posted - 06/02/2005 :  08:40:23  Show Profile
After spending the night at anchor off the Coronado Islands in fairly rolly conditions, I found the centerboard slap to be absolutely intolerable. It kept me and my crew up most of the night. I kept having dreams of losing the centerboard! It's certainly not the first time it's been an annoyance, but it was at it's worst. Centerboard down, up, halfway down, two-thirds up, made no difference.
I did a search on the forum and found this from Jack Schafer :

"I just went through the same routine. I replaced the nylon washers at the centerboard pin. The old washers were worn to a sliver. I replaced them with 2" x1/8 thick nylon washers purchased at a local hardware store. It really took the play out of the centerboard. I also put 2, 2 inch wide 1/2 inch thick tapered plastic shims in the trunk,just behind the turning block. It holds the centerboard snug when it sits in the slip. no more slapping!"

Do I need to replace the washers on the pin, or is it possible that the shims will do the trick? Where can I get these shims? How far back from the pin should they be installed? Are these installed with 5200? I am hoping that maybe just the shims might due the trick as installing new washers obviously entails removing the centerboard. As the boat is only one year old next month, the washers shouldn't be worn, but there seems to be a lot of play in the centerboard. Thanks for any and all help!
Charlie
"C Angel" 250WB #799
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bear
Admiral

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USA
909 Posts
Response Posted - 06/02/2005 :  09:23:17  Show Profile
Charlie, There are plenty of posts on this forum about that subject. I don't believe you are going to lose the centerboard because of slapping around. If it really bothers you put a snorkel and mask on and go underneath the boat and check the four retaining bolts for at least tightness. There is a drawing on placement of shims also on the forum. If you pull the boat you might just as well fix everything. Is the warranty still in effect? I did the washer routine last fall and the centerboard did not have to come out, but you need two more hands reinstalling front of centerboard. Like I wrote there is plenty of help on this forum for that issue.
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sterngucker
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USA
169 Posts
Response Posted - 06/03/2005 :  03:54:33  Show Profile
I did some more searching on the forum and have concluded I need 2 2" x 1/8" nylon shims to take up space on the pivot pin as well as 6"x2"x1/2" tapered plastic shims to glue inside the trunk to minimize the banging. I also noted that I need to jack up the bow about 8" to install all of this. I couldn't find the hole diameter for the centerboard pin shims. Does anyone know what diameter the pin is? Thanks.

BTW, I wasn't really concerned about losing the centerboard... the banging just caused some weird dreams...
Edited by - sterngucker on 06/03/2005 03:55:43
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bear
Admiral

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USA
909 Posts
Response Posted - 06/03/2005 :  07:19:40  Show Profile
I believe you should measure the pin OD when you get it out, unless someone else remembers. Also when you take the pivot pin out it should go back in the same position..On my trailer I took the bottom bunk board off and the two keel alignment boards off also. It gives more room to manuver. To jack the front of the boat I took my spare tire off and slid an automobile jack in from the front about a foot on two 2x4's.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.