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 Catalina/Capri 25/250 Sailor's Forums
 General Sailing Forum
 Help loosening screws from mast		  New Topic  Topic Locked
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ddlyle
Captain

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302 Posts
Initially Posted - 10/22/2005 :  12:06:54  Show Profile  Visit ddlyle's Homepage
I have a 1986 c25 (standard rig) with internal halyards.
The plastic sheeves (turning blocks ?) at the base of the mast are breaking apart (where the halyard exits the mast). I guess they're original, but I don't know.

The prior owner replaced the halyards with a too-large size that doesn't fit the sheeve, which only makes the problem worse, so I must replace the sheeve or turning block at the base of the mast. (Obviously I will also replace the halyards with the properr size line).

My problem is that the screws don't want to turn. I guess because they're stainless and the mast is aluminum.

I have sprayed WD40 on the screw heads, and inside the mast (hoping it might drip down to the screws and help them come loose).

What better way is there?
Do I need to get an impact driver?
Thanks
Cap'n Dave
Sailing The Blues
1986 C25 sr/sk #5413
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tinob
Master Marine Consultant

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USA
1883 Posts
Response Posted - 10/22/2005 :  16:14:17  Show Profile
Cap...you might get away with just inserting the screw driver and tapping the end of it while turning. Worked for me when I decided to remove all the hardware on the boom. An impact gun might be overkill, keep it in mind should all else fail. I have the impact gun but also an impact screw driver that gets its power from a hammer. Didn't need either of them.

Sometimes it helps to turn clockwise before trying to remove the screw ... breaks the seize sort of.

Good luck and let us know what works for you.

Val on Calista # 3936

OH and remember to coat any screws being replaced with anti-seize compound...comes in a tiny squeeze tube of bronze powder in a binder.
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Oscar
Master Marine Consultant

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USA
2030 Posts
Response Posted - 10/22/2005 :  18:39:01  Show Profile  Visit Oscar's Homepage
Putting a flame on it might help........
Edited by - Oscar on 10/22/2005 18:39:39
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ClamBeach
Master Marine Consultant

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3072 Posts
Response Posted - 10/23/2005 :  00:17:37  Show Profile
A little heat and a soak with PB-Blaster might help things along.

I have removed/replaced all my mast and boom fittings. Where I needed/could, I just grabbed the screw head with a vice-grips. I had quite a number of the screws break off (or if they were flat heads) I ended up drilling them out (this went very quickly).

Be sure to use 'never seize' or an appropriate grade of Loctite when replacing the screws to avoid problems the next time they have to come out.
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Ben - FL
Admiral

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880 Posts
Response Posted - 10/23/2005 :  08:14:08  Show Profile  Visit Ben - FL's Homepage
I love PB Blaster. Home Depot used to carry it but now all they have is about a hundred cans of WD-40. And I do keep a can aboard. I prefer using the non-presurized can with a pump spray. And no-seize is a must when using two different metals where electrolysis can be a problem, which it is around salt water where dock power may be bleeding into the area.
Edited by - Ben - FL on 10/23/2005 08:15:38
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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.