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wynsurfer
Joined: 24 Aug 2007 Posts: 940
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Posted: Sat Nov 09, 2013 3:30 pm Post subject: Power box replacement |
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My fin found a rock while sailing my Tabou rocket. Not much damage to the fin, but I think I may have damaged the box. Today I took a close look at it under bright sunlight wearing reading glasses and could see some chips in the roof of the box around where the bolt passes thru. There may possibly be a few hair line cracks as well in the roof of the box, the sides look ok. I have sailed the board a few times since the incident, and now I am seeing paint chipping on the bottom of the board in front of the box, so I am pretty sure I should replace it.
I might try this myself, but was wondering if there is anyone on Cape Cod doing repairs like this. If it's not over $150.00 I would be happy to pay a pro. Thanks for any suggestions! |
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outcast
Joined: 04 May 2004 Posts: 2724
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Posted: Tue Nov 12, 2013 9:27 am Post subject: |
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I could look at it....and talk you thru it, I do have a spare box and divinycell
Probably not willing to do it as i have like 0.0 time lately
It simply may not be worth the effort unless the board is a 2014, and your all time favorite.....If the box is holding, it may be easier to seal it with a layer or two of glass _________________ https://www.youtube.com/watch?time_continue=2&v=zw0MgkO7VXw |
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wynsurfer
Joined: 24 Aug 2007 Posts: 940
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Posted: Tue Nov 12, 2013 10:15 am Post subject: |
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Thank you outcast! I am not sure if it does need to be replaced.
The paint chipping on the bottom I am seeing is I think from a weed fin that overhangs the bottom of the board, and it sort of looks worn rather than chips and is confined to the area immediately under the leading edge of the fin, so maybe I would see this anyway.
Since the box is surrounded by divinycell, which does not absorb water, maybe I could leave it alone. Board is an'08 I bought used.I do like the board and use it alot. If I keep sailing it, sooner or later I would notice other problems around the box if it's bad no? |
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outcast
Joined: 04 May 2004 Posts: 2724
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Posted: Tue Nov 12, 2013 11:16 am Post subject: |
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ya, easiest way to check would be to sail it, then let it cook in the sun...if you see all bubbly water etc, then you have larger issues.
pressing with your thumb is a plus/minus. that area should be pretty solid, but truly soft would be a problem too.
the screw on a powerbox goes thru a plastic chimmney shaft, whch comes off the main box, and then the top of the shaft gasses to the deck
unless you are dripping buckets, or the fin is all wiggly, i would just keep goin |
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pete1111
Joined: 16 Apr 2005 Posts: 193 Location: The Dude
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Posted: Tue Nov 12, 2013 12:09 pm Post subject: |
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slinky wrote: |
Since the box is surrounded by divinycell, which does not absorb water, maybe I could leave it alone. Board is an'08 I bought used.I do like the board and use it alot. If I keep sailing it, sooner or later I would notice other problems around the box if it's bad no? |
Most production boards don't have there boxes set in divinycell.Sand down area and lay over some glass just to be sure. |
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wynsurfer
Joined: 24 Aug 2007 Posts: 940
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Posted: Tue Nov 12, 2013 12:09 pm Post subject: |
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The fin feels rock solid in the box, so I'll keep sailing it, but keep an eye on it.
Thanks outcast, I really appreciate the advice. |
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wynsurfer
Joined: 24 Aug 2007 Posts: 940
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Posted: Tue Nov 12, 2013 6:10 pm Post subject: |
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Thanks also to pete1111! I did not know that.
If worse comes to worst and the box needs replacement I guess there is no one that is doing this sort of thing here on a professional level? I have a router and good wood working skills, and could tackle the job myself, but would like to avoid this if possible. |
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bred2shred
Joined: 02 May 2000 Posts: 989 Location: Jersey Shore
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Posted: Tue Nov 12, 2013 7:36 pm Post subject: |
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Sounds like you already did something like this, but if it were me, I'd stick the fin in the box, screw it down and then flip the board over and grab the fin and flex it hard (maybe even have someone hold the board steady) to see if there is any movement of the box or the board skin. If there is no movement and no visible fractures in the skin, I'd call it fine. You can also look down into the recesses in the deck for the fin screws to see if there are any fractures. The fin boxes are held in place at the bottom skin and at the bottom of the fin screw recesses, so if something gives, it's going to be in one of those locations. The boxes are pretty darn tough (I recall a few years ago running into a submerged object at speed where I thought the fin or the back of the board would be gone and the only damage was a small ding on the fin).
From the sound of your post, I'd bet its a non-issue. Sail it!
sm |
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U2U2U2
Joined: 06 Jul 2001 Posts: 5467 Location: Shipsterns Bluff, Tasmania. Colorado
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Posted: Thu Nov 14, 2013 5:18 pm Post subject: |
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the surrounding area will be a reinforcement of some type, probbaly more than one kind of closed cell, the PVC inside does nothing but provide a outline.
large finbox lower right, that looks like it was removed, was, a powerox
some type of heavier core was used to install the Rocket box, Divinycell may be used at Cobra, but some type of CORE is
http://www.noahsmarine.com/items.asp?Cc=COMPOSITE
above is the layers of the bottom, less than 1mm of fiberglass, then .5cm of 2 layers of core, one gray one red. The red material along with some more surround the box, seen a little in the powerbox hole.
_________________ K4 fins
4Boards....May the fours be with you
http://www.k4fins.com/fins.html
http://4boards.co.uk/ |
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U2U2U2
Joined: 06 Jul 2001 Posts: 5467 Location: Shipsterns Bluff, Tasmania. Colorado
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Posted: Thu Nov 14, 2013 5:22 pm Post subject: |
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If the box is or does leak then you have more problems.
Have someone at least offer an opinion after seeing it.
BTW this box was a PITA to remove, came out fairly intact. _________________ K4 fins
4Boards....May the fours be with you
http://www.k4fins.com/fins.html
http://4boards.co.uk/ |
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