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Sheared bolt in the mast base, Need help.
http://www.hobie.com/forums/viewtopic.php?f=75&t=64725
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Author:  Aero_70 [ Sat May 18, 2019 11:53 am ]
Post subject:  Sheared bolt in the mast base, Need help.

Matt Or whoever I need to reach at Hobie.

I have a 2015 TI that I ordered new.
Last week I was down sailing in the FL120.
I was sailing downwind in light winds. Maybe 3-5kts. I have the spinnaker and it was up. I heard a loud thud sounds and the mast tilted over about 20-30 degrees at the base.
Doused the spinnaker, furled the main by hand. It was tilted too far to use the furling line. Pulled the mast out on the water and lashed it to the aka's and started pedaling.
I was in Pensacola Bay.
The previous day's sail very windy and I was using a small patch of sail, but on tacks it felt like the mast had too much play in it.

So.. Here are the pics of the damage.
In the 3rd pic you can see that the threads look crushed\stripped or something.
Image


Image

[img]https://photos.smugmug.com/Sailing/Tandem-Island/Mast-Mount-bolt-Sheared-Off/i-PVT7Kgg/0/929978d2/XL/DSC08205-XL.jpg

Image

Image


What should the bottom of the mast receiver look like?
Is this normal where it is rounded out where the bolt goes through or is this normal?
Image
Image

I have tried to get the remaining portion of the bolt out from the brass nut in the hull but I m not having any luck.

Advice, Next steps Thoughts?

All the pics are here..
https://paul-links.smugmug.com/Sailing/ ... eared-Off/

Author:  stringy [ Sat May 18, 2019 2:18 pm ]
Post subject:  Re: Sheared bolt in the mast base, Need help.

https://www.hobie.com/forums/viewtopic.php?f=75&t=36284
https://www.hobie.com/au/en/forums/view ... 71&t=56099

Author:  mmiller [ Mon May 20, 2019 9:16 am ]
Post subject:  Re: Sheared bolt in the mast base, Need help.

If you don't have the right tools, I would take it to a machine shop/mechanic to try and remove the screw. Likely mentioned in the links stringy attached, but keep the heat down during the process somehow.

Author:  Aero_70 [ Tue May 21, 2019 5:23 am ]
Post subject:  Re: Sheared bolt in the mast base, Need help.

Thanks Matt.
Jacques sent me an email yesterday as well.
I went up to my local dealer and talked with them about it. They arent a repair center but the gave me some good tips to go on. For now I have it soaking with P-Blaster until next weekend. I will try to get it using a left handed bit and extractor set.

Question about my mast receiver piece. Is the forward indentation on the underside supposed to be larger that the rear? It looks like the base has been chewed out, but the nubs in the bottom of the hull dont look like they have had any wear.
Is that what the bottom of the mast receiver is supposed to look like?
See the pictures above.

Author:  mmiller [ Tue May 21, 2019 8:17 am ]
Post subject:  Re: Sheared bolt in the mast base, Need help.

I'm guessing that the factory reamed it out to make room for the lump it sits on... they are inconsistent.

Author:  bosab [ Tue May 21, 2019 3:03 pm ]
Post subject:  Re: Sheared bolt in the mast base, Need help.

left handed drill bit will take it out . go slow and keep it lubricated so you don't get hot and damage the hole threads too much.

Author:  Aero_70 [ Fri May 24, 2019 1:02 pm ]
Post subject:  Re: Sheared bolt in the mast base, Need help.

Thanks Matt and Jacques, and those who chimed in.

I was able to back the remaining portion of the stud this afternoon. Once it finally started to move I felt SO much better. I was freaking out at the thought of permanently damaging my hull.
I'm heading up to Go With The Flow this evening to touch base with them and get some parts ordered.

Paul Links
Aero_70

Author:  Chekika [ Sat May 25, 2019 6:37 am ]
Post subject:  Re: Sheared bolt in the mast base, Need help.

Well done Paul!

Keith

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