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  #121  
Old 02-06-2013
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Re: Frozen rudder shaft Hinterhoeller 28

Can you get your trusty sawzall down the tube now and slit that garbage at the top without damaging the lower bushing? I'm thinking if you cut a couple of slots vertically down to the tube wall you may relieve some pressure and then be able to physically remove the two pieces.. at least you'll have some limited space for movement and it may release.

Another possibility, though, if you're ultimately unsuccessful in removing that last bit, would be to cut the existing tube below that seal, then sleeve and extend the existing tube to where you need it.

That said, I do think you're making a bit too much of the job of replacing the tube.. as far as DIY glasswork project I think that's a fairly simple, straightforward task, esp if you can find an appropriate section of pipe or tube for the job. It would be easy to slip a temporary stock up there to maintain the alignment as you install the tube. You'd also avoid any future issues with whatever seized things up in the first place. You could also incorporate a socket for a new lower bushing that might be more easily replaceable in the future..

At any rate you're many steps closer to a solution than when you started... best of luck!
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  #122  
Old 02-06-2013
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Re: Frozen rudder shaft Hinterhoeller 28

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Originally Posted by rbyham View Post
BTW, the white junk in my hand is what I pulled out of the tube once the shaft was removed. Any idea what this is? I am guessing the inside of the tube between the bottom bearing and the old box had about 3/8" of this on side walls all the way around. Could it be some old packing that had completely disintegrated?
That mush looks like wet, thick aluminium oxide. I've never seen any type of packing that could end up looking like that. Is your rudder shaft aluminium by any chance?

I agree with Faster - I think you're making too much of what the job would be to glass in a new tube. Glass & epoxy work is quite simple albeit sticky & itchy. It is a skill you are almost certain to need during your boat ownership years. By the time you have done this you'll be fairly expert - it really is about that straightforward.

Trying to rebuild what you have looks like a LOT more work and expense to me and what you'd end up with wouldn't be as good - more complex, more expensive, not as strong and susceptible to the same failure down the road.

Your setup is unlike anything I've seen in a sailboat while what we describe is very standard practice and has been for decades.
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  #123  
Old 02-07-2013
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Re: Frozen rudder shaft Hinterhoeller 28

I would like to see what the rudder / rudder shaft looks like after taking it out.
Have any pictures to post
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  #124  
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Re: Frozen rudder shaft Hinterhoeller 28

Here is a shaft picture.

Also, if I glass in a new tube how is the top sealed? Ending at the quadrant would have it open above the water line so can it be open or am I needing to plan for a new stuffing box as well?

And with a new tube what actually holds the rudder up? The only thru-shaft would be the quadrant bolt. Originally there was a collar type piece with two allen headed screws one on each side that rode about the orig stuffing box and I assume functioned as a vertical hold on the shaft.
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Re: Frozen rudder shaft Hinterhoeller 28

I think if the tube ends as high as you can get away with, the pressure on any seal there would be quite minimal - it shouldn't take too much .. Some kind of Oring might do.

As far as holding the rudder up I'd reinstall/create a pinned collar at deck level.
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  #126  
Old 02-07-2013
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Re: Frozen rudder shaft Hinterhoeller 28

Well.. if it's not been said... CONGRATULATIONS ON GETTING IT FREE!
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  #127  
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Re: Frozen rudder shaft Hinterhoeller 28

Quote:
Originally Posted by rbyham View Post
Here is a shaft picture.

Also, if I glass in a new tube how is the top sealed? Ending at the quadrant would have it open above the water line so can it be open or am I needing to plan for a new stuffing box as well?

And with a new tube what actually holds the rudder up? The only thru-shaft would be the quadrant bolt. Originally there was a collar type piece with two allen headed screws one on each side that rode about the orig stuffing box and I assume functioned as a vertical hold on the shaft.
If the shaft goes high enough above the waterline you don't really need to worry about a seal. My Col 43 didn't have one and there was no evidence that water had ever intruded. The quadrant bolt and the tillerhead fitting will hang it securely. Put a ring of UHMWP or Delrin on top of the tube as a thrust surface for the quadrant and just let the rudder hang.

P.S. that pic appears to confirm my suspicion that the white mush is aluminium oxide. Is the rudder shaft aluminium?
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Last edited by SloopJonB; 02-07-2013 at 01:21 PM.
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  #128  
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Re: Frozen rudder shaft Hinterhoeller 28

I have not determined the make-up of the rudder but my best guess at present is it is aluminum. So I think the guess at aluminum oxide is probably a good one. But I was surprised at how gooped up it was in there. I would say a full 4" of the tube all the way around at 3/8" deep was that junk.

In terms of height above water line, my measurements show a max of about 4" above water line for new tube. Any higher and I am running into the quadrant. My concerns are things like heeling and how that might impact.
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Re: Frozen rudder shaft Hinterhoeller 28

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Originally Posted by deniseO30 View Post
Well.. if it's not been said... CONGRATULATIONS ON GETTING IT FREE!
Thanks Denise. Yes that felt great!
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Re: Frozen rudder shaft Hinterhoeller 28

Quote:
Originally Posted by rbyham View Post
I have not determined the make-up of the rudder but my best guess at present is it is aluminum. So I think the guess at aluminum oxide is probably a good one. But I was surprised at how gooped up it was in there. I would say a full 4" of the tube all the way around at 3/8" deep was that junk.
You must check the lower bearing surface of the shaft, if it is uneven you must find a fix - one option is to add a sleeve, read more here: Jefa stainless steel and aluminium sleeves

Quote:
Originally Posted by rbyham View Post
In terms of height above water line, my measurements show a max of about 4" above water line for new tube. Any higher and I am running into the quadrant. My concerns are things like heeling and how that might impact.
I suggest you read this about sealing Sealing systems
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