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post #1 of 10 Old 03-22-2012 Thread Starter
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Bent mast

I have a '71 Cat 22. The mast has a gentle bend in it right where the spreader bracket attaches. I searched the forums and there are many threads that talk about bent masts, but all of them I found address issues with a crease in the mast at the point of the bend. Mine has no crease and if I put the mast on blocks with the bend on the topside, there is almost no bend at all just from the weight of the mast. And when the mast is up and tensioned by the shrouds the bend is gone. But from the pics you can clearly see the bend when it is sitting with the aft side up. Just wondering if I should be concerned about this or not. The pics attached are from both the bottom and top of the mast. They are a little deceiving but the bend is clearly at the point of the spreader bracket. Thanks for any advice you have.
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DSCN1224.jpg   DSCN1225.jpg  

Last edited by Hookturn; 03-22-2012 at 09:48 PM.
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post #2 of 10 Old 03-23-2012
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Re: Bent mast

Maybe a little physical persuation is required?
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post #3 of 10 Old 03-23-2012
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Re: Bent mast

I can't really see closely in the pictures, but I would think that if there is no visable stress failure in the aluminium at the bend and if you can adjust the shrouds to keep the mast plumb, then there is not too much to worry about. Would try to find a sister ship and see how her mast behaves, though.

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post #4 of 10 Old 03-23-2012
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Re: Bent mast

If the "weight takes the bend out" and the "shrouds keep it plumb" then I wouldn't worry about a little sway on ground...

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post #5 of 10 Old 03-23-2012 Thread Starter
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Re: Bent mast

Yeah- there's no area of stress failure, but I hate looking at the bent mast when it's down. On the other hand, I don't want to try to bend it back and potentially create a bigger problem. Based on your comments, I will just live with the bend. Thanks for your input.
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post #6 of 10 Old 03-23-2012
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Re: Bent mast

While it's off ther boat, store it with the blocks placed so it gently works the bend out....

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post #7 of 10 Old 03-23-2012
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Re: Bent mast

Fixed one like that a few years ago. the owner let it down a bit to hard and it bounced of a car. if it says bent then it is bent. the metal has been stressed beyond the yeild strength of the metal. it is not going to bend back by just putting blocks under it. to straigthen it will require that it is bent back with more force then bent it in the first place. when bending it back you need to do it in such a way that you can control the location and amount that you bend it. if you try to bend it back without the proper equipment it will bend in the wong place and you will have a S shaped mast. If it is straight when rigged then it is best left alone. if you want it fixed have a pro do it.

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post #8 of 10 Old 03-23-2012 Thread Starter
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Re: Bent mast

I am going to just let it be for now. But if I were to have someone look at it-what sort of professional is qualified for such a task?
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post #9 of 10 Old 03-23-2012
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Re: Bent mast

I dont see a big problem when you tune the rig it looks as if it will come true.

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post #10 of 10 Old 03-23-2012 Thread Starter
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Re: Bent mast

It definitely comes out straight when up. So I am very likely not going to have anything done to it. Too many things to do first! But, I wouldn't mind putting that on the list. Just have no idea who I would look to for straightening the mast.
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