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Mast Rotation problems
http://www.hobie.com/forums/viewtopic.php?f=75&t=62352		 Page 1 of 1
Author:  paranoid [ Mon Mar 19, 2018 4:31 am ]
Post subject:  Mast Rotation problems
I have been having increasing difficulty furling and unfurling the sail. I think that furling was never as easy as it should be but unfurling now requires rotating the bottom of the mast by hand.
I've now done about 50 outings on my TI but only just noticed that there is no gap between the bottom of the mast furling drum and the baring plate. Don't know if it was always so.

I did some searching on the Hobie forums/fora and found several topics on this issue.

https://www.hobie.com/forums/viewtopic.php?f=71&t=50144&p=242815&hilit=furling+plate+rubbing#p242815
https://www.hobie.com/forums/viewtopic.php?f=71&t=53868&p=249750&hilit=furling+plate+rubbing#p249750
https://www.hobie.com/forums/viewtopic.php?f=75&t=47189&p=207831&hilit=furling+plate+rubbing#p207831
https://www.hobie.com/forums/viewtopic.php?f=71&t=44081&p=187692&hilit=furling+plate+rubbing#p187692
https://www.hobie.com/forums/viewtopic.php?f=71&t=44081&p=212168&hilit=furling+plate+rubbing#p212168
https://www.hobie.com/forums/viewtopic.php?f=71&t=52003&p=237959&hilit=furling+plate+rubbing#p237959

Unfortunately I could not find any agreed or official reason or remedy.

Image
Image

Is there a definitive or official solution?

I have asked my Hobie dealer to find out and he has lodged a claim with headquarters (still just within warranty) but they seem to be slow coming back with an answer.
Author:  VAyakker [ Mon Mar 19, 2018 6:21 am ]
Post subject:  Re: Mast Rotation problems
I had the same issue on my 2012 AI. Dealer added some kind of large plastic washer within the receiver which raised the mast a tad. Seemed to work- I sold the kayak and can't comment on how it is still working.

My concern would be that the furling drum has slipped and will need re-epoxy.
Author:  walt [ Mon Mar 19, 2018 7:22 am ]
Post subject:  Re: Mast Rotation problems
I dont know if one of those thread you linked to was the one I started.. but I had the same issue and I think my problem is resolved.. hopefully as I have only driveway sailed the boat so far..

My .02..

If you have been lubing the bearings with anything that collects dust (in my case WD40), try taking the bearing cassete apart and really do a good job cleaning things up. Your picture looks like the bearings are clean so maybe not the case but this did help in my case.

At the bottom of the mast receiver, there is a metal plate with four screws. Those screws are prone to backing out and when I inspected mine, all four screws were sticking up enough to where I suspect the screw head may have been rubbing on the bottom of the mast.

FYI, I dont know if its just the way the light was for your second picture but it looks like most of the abrasion wear between the mast and the receiver is to the rear. I looked at mine and have the same abrasion but its more uniform around the circle. I know I sometimes added outhaul tension to try and force the rotation when things started to get tight but it would seem that outhaul tension would have also caused more scoring on the back side and contributed to things being stiff?

Or. maybe you do just need a thin washer under the metal pin plate to raise it a hair..
Author:  Jbernier [ Mon Mar 19, 2018 8:33 am ]
Post subject:  Re: Mast Rotation problems
This looks like you may have a displaced mast receiver - what does the inside of the hull look like at the base of the V Frame? You will need to get the mast raised up in any event, there should be a slight gap between the bearing plates the the mast collar. If you can take a photo inside the hull and do an inspection to make sure it hasn't come undone.
Author:  paranoid [ Mon Mar 19, 2018 4:23 pm ]
Post subject:  Re: Mast Rotation problems
Jbernier wrote:
This looks like you may have a displaced mast receiver - what does the inside of the hull look like at the base of the V Frame? You will need to get the mast raised up in any event, there should be a slight gap between the bearing plates the the mast collar. If you can take a photo inside the hull and do an inspection to make sure it hasn't come undone.


Apart from the lock nuts not being tightened everything is tight.

Image

Don't know if this much bulge at the bottom of the hull beneath the mast receiver is normal?

Image
Author:  Jbernier [ Mon Mar 19, 2018 4:47 pm ]
Post subject:  Re: Mast Rotation problems
You can try to adjust the V Frame and reduce that bulge on the bottom - hopefully you'd gain a slight gap back at the top of the X Bar bearing plates.
Author:  paranoid [ Thu Mar 22, 2018 5:11 pm ]
Post subject:  Re: Mast Rotation problems
Jbernier wrote:
You can try to adjust the V Frame and reduce that bulge on the bottom - hopefully you'd gain a slight gap back at the top of the X Bar bearing plates.


Luckily I left this problem to our hobie dealer as it is subject to a warranty claim. He had a closer look at the V-Brace and discovered that the bolt that holds it to the hull had sheared off.
Now we have a problem with getting the sheared bolt out of the boat so it can be replaced. Bolt seemed very small for the job it was doing.
Waiting for our dealer to decide how to proceed.

With mast receiver removed.

Image


Mast receiver underneath.

Image
Author:  Steve Fields [ Wed Mar 28, 2018 9:43 pm ]
Post subject:  Re: Mast Rotation problems
You have done the right thing and as per customer registration card and taking the kayak to the dealer. Any problem, the dealer should be the first port of call. Hobie AP has the kayak and are working with the dealer. The dealer will stay in touch with you. SF
Author:  paranoid [ Thu Mar 29, 2018 3:36 am ]
Post subject:  Re: Mast Rotation problems
Thanks Steve.
Author:  paranoid [ Tue Apr 17, 2018 6:48 pm ]
Post subject:  Re: Mast Rotation problems
Thanks to the guys at Hobie Australia HQ at Huskisson, the mast socket is now fixed and the mast rotating much better.
Hobie apparently spent a day and a half drilling out the snapped off bolt from the hull.
They also replaced the missing rivet on the downhaul tie down cleat on the sail and replaced the tramps that had lost their tie up hooks.

We picked up the boat at Huskisson and had three great days sailing on Jervis Bay, St Georges Basin and Sussex Inlet.

Thanks Hobie and James at HWS.
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