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Author Topic: Would you sail with crack in mast step?  (Read 136 times)

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Stucker

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Would you sail with crack in mast step?
« on: October 17, 2020, 07:14:04 AM »

Wondering your thoughts on continuing to use a mast step that has a crack under one of the 4 bolts?   The replacement has to be modified to fit and also needs new holes drilled.  I wish it was as easy as buying a new one and swapping it out. 
« Last Edit: October 17, 2020, 07:14:37 AM by Stucker »
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Scott Tucker
2003 C34 MK II
Hull #1654
Toronto/1000 Islands

KWKloeber

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Re: Would you sail with crack in mast step?
« Reply #1 on: October 17, 2020, 07:39:12 AM »

Scott

Have you considered having that one welded?  I presume that it could be.
Iím shocked that thereís only two lags- thereís four on our C30 steps.
I donít know the configuration on the 34 but IIWMB Iíd be looking at whether I could weld-fill those and space out four. Obviously thatís belt n suspenders but would alleviate any future concern, which would eat at my soul having found the crack on the only line of defense.
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Twenty years from now you'll be more disappointed by the things you didn't do, than by the ones you did.
So throw off the bowlines.  Sail away from the safe harbor.  Catch the tradewinds in your sails.
Explore.  Dream.  Discover.   -Mark Twain

KWKloeber

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Re: Would you sail with crack in mast step?
« Reply #2 on: October 17, 2020, 08:13:10 AM »

WAIT. huh?
I just took a close look at your pics. Why did CTY not use the inner holes??
Is there something specific to the 34 where they could not be lagged.   Thatís the typical way to mount a step and I see is how the step that CD has is mounted.
What am I missing?
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Twenty years from now you'll be more disappointed by the things you didn't do, than by the ones you did.
So throw off the bowlines.  Sail away from the safe harbor.  Catch the tradewinds in your sails.
Explore.  Dream.  Discover.   -Mark Twain

Jim Hardesty

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Re: Would you sail with crack in mast step?
« Reply #3 on: October 17, 2020, 08:38:24 AM »

Quote
Have you considered having that one welded?  I presume that it could be.
Iím shocked that thereís only two lags- thereís four on our C30 steps.

Scott,

My mast is up so can't really tell, but here is a picture of under the mast step/ compression post.  As you can see Shamrock has 4 bolts that I assume go through to the mast step.  If you don't have 4 suggest you call Catalina and ask if there should be 2 or 4.
The way I understand it modifying the new mast step is just cutting the corners off.  Possible with a careful hacksaw, easy for any machine shop.  I also think that welding is a fine fix. 
To answer your question if I would sail with the crack.  If I saw it midseason, yes I would, it's in compression and trapped by the mast.  I would fix by welding or replacing next time mast was off. 
Jim
« Last Edit: October 17, 2020, 08:47:30 AM by Jim Hardesty »
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Jim Hardesty
2001 MKII hull #1570 M35BC  "Shamrock"
sailing Lake Erie
from Commodore Perry Yacht Club
Erie, PA

KWKloeber

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Re: Would you sail with crack in mast step?
« Reply #4 on: October 17, 2020, 09:41:40 AM »

Jim

Although I agree the crack isnít fatal (it appears to be on the outer flange and not continuous thru that side the step) there has to be a horizontal reaction at the step when under sail. Otherwise the base of the mast would kick off the coach roof. Thereís no moment because the mast is a hinge, but thereís horiz force.
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Twenty years from now you'll be more disappointed by the things you didn't do, than by the ones you did.
So throw off the bowlines.  Sail away from the safe harbor.  Catch the tradewinds in your sails.
Explore.  Dream.  Discover.   -Mark Twain

Stucker

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Re: Would you sail with crack in mast step?
« Reply #5 on: October 17, 2020, 10:26:40 AM »

There are 4 bolts going through.  The picture looks wonky on here.  One bolt is hidden under wires and you can see the aft bolt if you look closely.




WAIT. huh?
I just took a close look at your pics. Why did CTY not use the inner holes??
Is there something specific to the 34 where they could not be lagged.   Thatís the typical way to mount a step and I see is how the step that CD has is mounted.
What am I missing?
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Scott Tucker
2003 C34 MK II
Hull #1654
Toronto/1000 Islands

KWKloeber

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Re: Would you sail with crack in mast step?
« Reply #6 on: October 17, 2020, 05:39:51 PM »

Ohhh ok. I see those now Scott. Thx for the call out.
I wouldnít think itís a must do then but a should do.  Pull it and get the crack V welded and ground flush again.

Use electricianís putty to seal around the cables.
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Twenty years from now you'll be more disappointed by the things you didn't do, than by the ones you did.
So throw off the bowlines.  Sail away from the safe harbor.  Catch the tradewinds in your sails.
Explore.  Dream.  Discover.   -Mark Twain

scgunner

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Re: Would you sail with crack in mast step?
« Reply #7 on: October 18, 2020, 08:02:48 AM »

Scott,

I'm not sure what your question is about? You've got a crack in your mast step that you're concerned about. If the mast was up it might be a discussion worth having. Your mast is down which gives you access to the offending part, wouldn't this be a good time to fix it? Weather the fix is weld or replace it seems like this is the time to do it.
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Kevin Quistberg                                                 Top Gun 1987 Mk 1 Hull #273
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