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 Catalina/Capri 25/250 Sailor's Forums
 Catalina 25 Specific Forum
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gerdo
Navigator

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107 Posts
Initially Posted - 08/26/2002 :  12:05:17  Show Profile
1982 sk std rig. Will be ordering the mast plate from catalina direct so I can attach shackles etc. at base of mast. The screws that hold the existing plate to the deck do not appear to go thru the deck, at least they are not visible on the inside. Does anyone know what the screws go into. Are there nuts on the inside that I am just not seeing?
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Champipple
Master Marine Consultant

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USA
6855 Posts
Response Posted - 08/26/2002 :  12:12:45  Show Profile  Visit Champipple's Homepage
<BLOCKQUOTE id=quote><font size=1 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>
1982 sk std rig. Will be ordering the mast plate from catalina direct so I can attach shackles etc. at base of mast. The screws that hold the existing plate to the deck do not appear to go thru the deck, at least they are not visible on the inside. Does anyone know what the screws go into. Are there nuts on the inside that I am just not seeing?


<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>

I did this same job 2 summers ago. The screws are lag bolts that go into the compression post. By the way, your mast plate will most likely need to be redrilled. If you have a drill press I would use it. I would also highly recommend spending the 20 bucks on a good metal bit and some 3 in one oil. Measure twice, drill once!!

Duane Wolff
"The Flying Wasp"
C-25, #401 std,sk
Chief Measurer C-25/250 National Assn.
<img src="http://im1.shutterfly.com/procserv/47b2d603b3127cce9f858f0ef3ef0000001010" border=0>
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gerdo
Navigator

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107 Posts
Response Posted - 08/26/2002 :  14:26:04  Show Profile
would have never thunk that a machine head screw would be a lag. Why would they use that and not a regular hex head lag bolt. Any how thanks and BTW do you mean I will need to drill new plate or existing plate. I am assuming the new plate goes under the old and you use both plates.
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Greg
Deckhand

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18 Posts
Response Posted - 08/26/2002 :  15:40:43  Show Profile
Duane is correct. I also did mine a couple of years ago. My existing plate were large screws that screwed into the mast support post. They are just large wood screws.
My new mast plate did need to have two holes redrilled to match up with the existing mast support holes. I took both pieces to a machine shop and they did it with a mill. That new support plate is very hard stainless.
Yes the new mast plate does go under the existing mast support. Be sure to use a sealing material of your choice around the screws.
They used the flush screws so the mast will seat all the way down in the mast support base.

Greg Grasshoff
Spring, Tx.
1981 C-25 #2560 "Fore Sail" it is now For Sale.
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Brooke Willson
Admiral

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USA
983 Posts
Response Posted - 08/26/2002 :  16:35:16  Show Profile
That's strange. The tabernacle on my 1985 SKTR was secured to the deck by through bolts, two before the compression post and two abaft. When I got the halyard plate, I had to redrill the holes, because the ones in the plate didn't match the tabernacle.

Brooke
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Steve Milby
Past Commodore

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5902 Posts
Response Posted - 08/26/2002 :  18:32:12  Show Profile
If I remember correctly, in the earlier boats the mast plate was secured by screws into the compression post. In later boats, it was through-bolted in the manner that Brooke describes. I have seen a couple of older boats where the owners installed the new mast plate and through-bolted it.

Steve Milby "Captiva Wind" C-25 T/FK #2554
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Bill Holcomb
Admiral

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769 Posts
Response Posted - 08/26/2002 :  18:33:27  Show Profile
Hi All,

Sometime in the early '80s Catalina changed from the lag screw system to bolts 'n nuts. My '85 has the bolts 'n nuts just as Brooke describes. Owners of earlier versions might consider changing to bolts 'n nuts - as this system is much more secure when raising or lowering the mast.

Bill Holcomb - C25 Snickerdoodle #4839
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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.