Hobie Cat Forums

It is currently Fri Oct 24, 2014 10:33 pm

All times are UTC - 8 hours [ DST ]




Post new topic Reply to topic  [ 13 posts ] 
Author Message
 Post subject: Slightly bent mast
PostPosted: Tue Aug 18, 2009 3:20 pm 
Offline
Site Rank - Deck Hand

Joined: Thu Aug 07, 2008 9:57 pm
Posts: 12
Location: Melbourne, Australia
I have a slight bend in the mast (sideways) and am wondering if I can bend it back without detriment to the mast itself. Also, if it does successfully unbend, is there a memory effect so that it bends differently on one side to the other? Thanks in advance. :D

_________________
Paul Ridgway
2004 "SKAT" #2530


Top
 Profile  
 
 Post subject: Re: Slightly bent mast
PostPosted: Wed Aug 19, 2009 10:27 am 
Offline
Hobie Tech / Moderator

Joined: Tue May 27, 2003 3:16 pm
Posts: 301
Location: San Diego
Where's the bend? If somewhere between the top and bottom of the diamond wires you can sometimes take the bend out by having one side of the diamonds tighter than the other. If the bend is above the diamonds it's more difficult but you can try wedging the mast between 2 solid objects to try bending it back straight.

_________________
Greg Thomas
Hobie Factory Team


Top
 Profile  
 
 Post subject: Re: Slightly bent mast
PostPosted: Wed Aug 19, 2009 3:49 pm 
Offline
Site Rank - Deck Hand

Joined: Thu Aug 07, 2008 9:57 pm
Posts: 12
Location: Melbourne, Australia
The bend is fairly evenly along the whole section of mast so I am thinking that I would need to undo the diamond wires to try the fix.

_________________
Paul Ridgway
2004 "SKAT" #2530


Top
 Profile  
 
 Post subject: Re: Slightly bent mast
PostPosted: Thu Aug 20, 2009 4:42 am 
Offline
Site Rank - Old Salt

Joined: Sat Feb 24, 2007 8:45 pm
Posts: 1665
Location: Northfield Minnesota
Its probably an imbalance of diamond wire tension then. One side is tighter than the other.


Top
 Profile  
 
 Post subject: Re: Slightly bent mast
PostPosted: Thu Aug 20, 2009 8:58 am 
Offline
Hobie Tech / Moderator

Joined: Tue May 27, 2003 3:16 pm
Posts: 301
Location: San Diego
Yes, if it the mast is curved over the entire length, try adjusting the diamond wire with its own turnbuckle tighter or looser, should take care of the bend.

_________________
Greg Thomas
Hobie Factory Team


Top
 Profile  
 
 Post subject: Re: Slightly bent mast
PostPosted: Thu Aug 20, 2009 6:32 pm 
Offline
Site Rank - Deck Hand

Joined: Thu Aug 07, 2008 9:57 pm
Posts: 12
Location: Melbourne, Australia
Thanks guys I'll give that a go. I was presuming that the tension in the wires was even but you know what they say about assuming....

_________________
Paul Ridgway
2004 "SKAT" #2530


Top
 Profile  
 
 Post subject: Re: Slightly bent mast
PostPosted: Wed Aug 26, 2009 7:33 pm 
Offline
Site Rank - Deck Hand

Joined: Thu Aug 07, 2008 9:57 pm
Posts: 12
Location: Melbourne, Australia
Ok so I released the diamond wires and the mast still has a slight sideways bend over the whole length so I will try giving it a bit of pressure while supported top and bottom to correct?

_________________
Paul Ridgway
2004 "SKAT" #2530


Top
 Profile  
 
 Post subject: Re: Slightly bent mast
PostPosted: Wed Aug 26, 2009 8:59 pm 
Offline
Site Rank - Old Salt

Joined: Sat Feb 24, 2007 8:45 pm
Posts: 1665
Location: Northfield Minnesota
I'd see if you can pull it out with the wires first. I've got the same exact problem with my FXone mast, though I haven't checked to see if it is still there with the wires relaxed. I've just been lazy, and keep forgeting.

It might have a memory of sorts too from being pulled more to one side, but thats just a guess.


Top
 Profile  
 
 Post subject: Re: Slightly bent mast
PostPosted: Thu Aug 27, 2009 3:53 am 
Offline
Site Rank - Deck Hand

Joined: Thu Aug 07, 2008 9:57 pm
Posts: 12
Location: Melbourne, Australia
Thanks Karl - I've given it some pressure and it seems to have come back pretty straight but the proof will be in the sailing once I load it up with diamond pressure etc.

_________________
Paul Ridgway
2004 "SKAT" #2530


Top
 Profile  
 
 Post subject: Re: Slightly bent mast
PostPosted: Thu Aug 27, 2009 8:49 am 
Offline
Site Rank - Old Salt

Joined: Sat Feb 24, 2007 8:45 pm
Posts: 1665
Location: Northfield Minnesota
Your thread prompted me to try and get the bend out of my mast. I had to add a bit more rake to the spreaders anyway.

I released all of the diamond wire tension and my mast went straight, but after adjusting the spreader rake and bringing it back up to tension the bend was still there. I just used a string line from the mast head to the base,and used that centered on the luff track as a guide.


edit- In order to get the mast straight I've actually got less tension on the wires on one side. If I set it at 37 on one side, I get 36.5 on the other side. Weird!?


Top
 Profile  
 
 Post subject: Re: Slightly bent mast
PostPosted: Sun Aug 30, 2009 11:31 pm 
Offline
Site Rank - Deck Hand

Joined: Thu Aug 07, 2008 9:57 pm
Posts: 12
Location: Melbourne, Australia
Yes that is strange given that it is straight with no diamond wire tension. Maybe an asymmetry in the angle of the spreader arms ?

_________________
Paul Ridgway
2004 "SKAT" #2530


Top
 Profile  
 
 Post subject: Re: Slightly bent mast
PostPosted: Mon Aug 31, 2009 8:13 am 
Offline
Site Rank - Old Salt

Joined: Thu Jun 23, 2005 12:55 am
Posts: 356
Location: Rapid City, South Dakota
Karl Brogger wrote:
Your thread prompted me to try and get the bend out of my mast. I had to add a bit more rake to the spreaders anyway.

I released all of the diamond wire tension and my mast went straight, but after adjusting the spreader rake and bringing it back up to tension the bend was still there. I just used a string line from the mast head to the base,and used that centered on the luff track as a guide.


edit- In order to get the mast straight I've actually got less tension on the wires on one side. If I set it at 37 on one side, I get 36.5 on the other side. Weird!?



One of your wires might be a lil bit shorter

_________________
1992 Hobie Cat 18 #16943
Hobie Fleet 198, Rapid City, SD


Top
 Profile  
 
 Post subject: Re: Slightly bent mast
PostPosted: Mon Aug 31, 2009 6:38 pm 
Offline
Site Rank - Old Salt

Joined: Sat Feb 24, 2007 8:45 pm
Posts: 1665
Location: Northfield Minnesota
Tom Machette wrote:
One of your wires might be a lil bit shorter


There is a turnbuckle for that, but like I said, straight mast, unbalanced load? I'm told not to worry about it, as its a pretty minute difference.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 13 posts ] 

All times are UTC - 8 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group