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 Catalina/Capri 25/250 Sailor's Forums
 Catalina 25 Specific Forum
 Main Sail Slug Size For Late Model 25
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Kip C
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USA
243 Posts

Initially Posted - 05/11/2004 :  16:07:33  Show Profile
I remember this coming up a while back, but I can't seem to find the right thread. I thought the right size , as I remember it, was 1/2 inch, so I ordered some. They were the wrong size. Of coarse, I didn't have a tape measure with me to measure the old ones, when I was going to instaul them last Sunday. So, here I am asking. I thought all the masts were the same, other than standard and tall. For what it's worth, I did find out the mast head is different on the later model 25's, which I have.
Thanks,

Kip Casada

Quietude
C25 #6021
SR/WK/Inboard

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Sea Trac
Master Marine Consultant

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Vanuatu
1357 Posts

Response Posted - 05/11/2004 :  16:18:24  Show Profile
Kip,

I may very well have been the one to lead you astray. Sometime back I mentioned that I had replaced the slugs on my 1985 SR with 1/2", while the online owner's manual specifies 3/8". My 1/2" nylon slugs with SS bails are working beautifully, less twist and bind, but the model years may have had different tolerances. Or my kerf may have been expanded from twenty years of use.

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Kip C
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USA
243 Posts

Response Posted - 05/11/2004 :  16:36:00  Show Profile
JB,
Thanks! The slugs are ordered. I looked thru the manual and couldn't find it. What section is the slug size in?
Thanks again.

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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 05/11/2004 :  17:04:29  Show Profile
Kip,

The mast slot (kerf) on the standard rig mast is 3/4" by 3/4" so the 1/2" slug should fit once you get it into the slot.

I believe your 1/2" slugs will work once they get through the mast slot opening. My new main came with 1/2" slugs, but these larger slugs wouldn't fit into the mast slot opening. To remedy the situation, I enlarged the mast slot opening to accomodate the larger slug.

The tall rig mast slot is smaller, 3/4" by 1/2", which may require going down to a 3/8" slug.

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Sea Trac
Master Marine Consultant

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Vanuatu
1357 Posts

Response Posted - 05/11/2004 :  17:11:17  Show Profile
Yeah, what Don said, while I was looking for the reference.

I can't find the reference to the 3/8" slugs that I found last winter, but my old slugs were 3/8". However, this graphic (4-1-4 from the Newer Version of the owner's manual listed on this association's website) shows the kerf to be 3/4" by 3/4" on the SR.
[url="http://www.catalina25-250.org/manbro/pictures/4-1-4.gif"]Sail Plan[/url]
So, I figured 1/2" would work better than 3/8", and for me it has.

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Kip C
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USA
243 Posts

Response Posted - 05/11/2004 :  17:31:47  Show Profile
Thanks again guys! I had seen diagrams and that was what confirmed my memory. What I didn't know or remember was that the opening may need to be enlarged to accept the 1/2inch and mine does.

Thanks,

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frogger
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USA
184 Posts

Response Posted - 05/11/2004 :  17:42:03  Show Profile
I, too, thought the 1/2 in. was correct size. Needless to say it wasn't, but at least I switched to the 3/8 in. nylon ones to replace my plastic sail slugs on my Cat 250. Also, I added a silicone-class lub on the slugs and head board - made it work a lot easier. Live and learn. I don't know if enlarging the kerf slightly would matter?

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