Catalina - Capri - 25s International Assocaition Logo(2006)  
Assn Members Area · Join
h.jpg Home.
a.jpg Association Forum
s.jpg Ships Store
c.jpg Cruising
r.jpg Racing
t.jpg Technical Tips
g.jpg Photo Gallery - New
o.jpg Boat Search - Updated
m.jpg Manuals & Brochures
3rdrpt.jpg Swap Meet
l.jpg Links
f.jpg Officer Flag Line & Staff
b.jpg Bylaws & Constitution
 
1.jpg Members Area
1.jpg Join the Association
 
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.
 
Association Forum
Association Forum
Home | Profile | Register | Active Topics | Forum Users | Search | FAQ
Username:
 Password:
Save Password
Forgot your Password?

 All Forums
 Catalina/Capri 25/250 Sailor's Forums
 Catalina 250 Specific Forum
 What's that banging? Loose Keel?		  New Topic  Topic Locked
 Printer Friendly
Author Previous Topic Topic Next Topic  

chokenpoke
Deckhand

Member Avatar

3 Posts
Initially Posted - 04/13/2006 :  15:47:39  Show Profile
Took my 250 out on her first overnighter and anchored in the river under relatively calm conditions. Every time a wave came I'd hear a loud "thud" all into the night. This was a constant problem that left me pulling my hair out trying to figure out what the hell it was. The sound was so loud and deep that the only thing I could think of was that the keel was loose and wiggling back and forth. I tried raising and lowering the keel, but nothing helped. Has anyone had this problem before? Can anyone think of what this may be? I can't sleep on my boat with this constant racket. Please help.
Edited by - on

Tom Potter
Master Marine Consultant

Members Avatar

USA
1913 Posts
Response Posted - 04/13/2006 :  16:04:33  Show Profile
Welcome aboard Nick.
Since I have a wing keel, I have no moving parts down below so I can't give you much help. I once owned a swing keel Macgregor and it to made the thump noise. That's one of the reasons I went with a fixed keel this time. There are others on the forum that have the WB models and have the same problem. Here's some [url="http://www.catalina-capri-25s.org/forum/topic.asp?TOPIC_ID=11971&SearchTerms=keel"]discussions[/url] on that subject.
Edited by - Tom Potter on 04/13/2006 16:06:10
Go to Top of Page

chokenpoke
Deckhand

Members Avatar

3 Posts
Response Posted - 04/13/2006 :  18:57:08  Show Profile
Thanks Tom!
Edited by - on
Go to Top of Page

britinusa
Web Editor

Members Avatar

USA
5404 Posts
Response Posted - 04/13/2006 :  21:44:48  Show Profile  Visit britinusa's Homepage
It's the classic keel thump!

We have been putting up with it since we first got the boat.
Always staying overnite as we trail the boat every trip, we have experienced the banging keel every time there is any kind of water movement.

Turns out our keel is missing the washers between the keel and the keel keeper (for want of a better term)
Catalina is sending us new items next week.

Check your keel for sideways movement. I was amazed at the range of lateral movement, but even a small move will cause the bangs!

Paul
Edited by - on
Go to Top of Page

chokenpoke
Deckhand

Members Avatar

3 Posts
Response Posted - 04/20/2006 :  13:59:53  Show Profile
So I asked my dad the "engineer" about this problem, and he made an interesting suggestion. His idea was to wedge a "noodle" (the foam pool toys that you float on or use to whack people on the head) between the keel and the boat. He wants to string a rope through the noodle and submerge it behind the boat while at anchor. With the keel down, I would then walk the rope forward (with each end of the rope coming up from each side of the boat) until it is stopped by the keel. Then I would simply raise the keel until it is snug against the noodle, effectively jamming that piece of foam in there. Any thoughts? Am I a moron for thinking this will work?
Edited by - on
Go to Top of Page

Russ.Johnson
Commodore

Members Avatar

USA
855 Posts
Response Posted - 04/20/2006 :  15:38:25  Show Profile
Chokenpoke,
I'm interested in this problem. What's your hull number?
Both myself (hull 793) and Paul (hull 841) had similar problems.
In my case, the centerboard was broken and the sleeve needed to be re-attached.

If you can put your boat on the trailer, it's a pretty easy inspection.
If your centerboard was damaged like mine, the problem will only get worse.
On the other hand, it might be as simple as installing plastic shims.
Here's a link to the problem with my boat --> [url="http://www.catalina-capri-25s.org/forum/topic.asp?TOPIC_ID=11971"]Centerboard Noise - More Than Shims[/url]

The pool noodle is a good idea, but I would verify you don't have a serious problem first.
Let me know what you find.
Russ (#793)
Edited by - on
Go to Top of Page

britinusa
Web Editor

Members Avatar

USA
5404 Posts
Response Posted - 04/20/2006 :  21:23:51  Show Profile  Visit britinusa's Homepage
We actually thought of doing something similar to the noodle trick.



Keelhauling the guy that left out the spacer washers!
Edited by - on
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Topic Locked
 Printer Friendly
Jump To:
Association Forum © since 1999 Catalina Capri 25s International Association Go To Top Of Page
Powered By: Snitz Forums 2000 Version 3.4.06
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.