Propeller axle strut - Ballad

kaidepuu
Posts: 12
Joined: Wed Apr 27, 2016 1:47 pm

Propeller axle strut - Ballad

Post by kaidepuu »

My problem is that the lamination of the metal strut outside of the boat has been starting to rotten.

My first thought was, that the strut goes through the floor - but inside the boat you cannot see any sign of the strut, or lamination.

Now it is clear, that in my Ballad the strut doesn´t go through the floor and is laminated only outside.

Is this really the original structure in Ballad, I wonder?
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prjacobs
Posts: 235
Joined: Fri Oct 12, 2012 4:06 pm

Re: Propeller axle strut - Ballad

Post by prjacobs »

My strut had been reinforced at some time in the past, I don't know why. Maybe it was re-aligned for the Yanmar engine, or maybe damaged in a grounding. There was nothing visible on the inside of the hull, it seems to be quite strong so I faired it a bit, installed a new bearing, and left it alone.
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kaidepuu
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Joined: Wed Apr 27, 2016 1:47 pm

Re: Propeller axle strut - Ballad

Post by kaidepuu »

Anyway - have you the idea that the metall strut by no means doesn´t go through the floor? So that it is laminated only from outside.

Kai
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prjacobs
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Re: Propeller axle strut - Ballad

Post by prjacobs »

My guess is that it has a bit of a shoe that cups the bottom of the hull, and maybe a couple of bolts going through that have been glassed over during construction. As I say ... it's a guess, but looking at pictures on the net that seems the way they are built.
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kaidepuu
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Joined: Wed Apr 27, 2016 1:47 pm

Re: Propeller axle strut - Ballad

Post by kaidepuu »

This is what dropped down when I took away the rotten laminate.
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MarkRyan1981
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Re: Propeller axle strut - Ballad

Post by MarkRyan1981 »

Interesting - wonder why the laminate was failing? Possible grounding? Bad cutlass bearing replacement? Misaligned engine putting forces through it incorrectly? Or manufacturing defect? Let us know what you find
kaidepuu
Posts: 12
Joined: Wed Apr 27, 2016 1:47 pm

Re: Propeller axle strut - Ballad

Post by kaidepuu »

No answer to this result. There can be many possibilities.

Anyway, there were signs of earlier repair - not during the last 15 years, according to 3 earlier owners.
kaidepuu
Posts: 12
Joined: Wed Apr 27, 2016 1:47 pm

Re: Propeller axle strut - Ballad

Post by kaidepuu »

Finally: all the earlier reparation was not made professionally. The metal strut was plain, with no rough to help the laminate to be attached.
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After taking off the old metall strut there was made a v-shape metall strut that was laminated in the hull.
After taking off the old metall strut there was made a v-shape metall strut that was laminated in the hull.
axel 1.jpg (368.29 KiB) Viewed 25487 times
PhilippZ
Posts: 1
Joined: Wed Mar 15, 2017 8:24 pm

Re: Propeller axle strut - Ballad

Post by PhilippZ »

Kaidepuu,

After catching a rope with the propellor I will have to face fixing the shaft strut as well. From the first looks if the cracked fiberglass it is the same as in your pictures, just a simple metal plate where the bearing is bolted to. so you ended up replacing the old strut with the V-shaped part. Have you tried to just laminate the simple strut back on in the beginning? I am tempted to go that way, but worried that it will be a painful process trying to align the strut and keeping it in place until the epoxy is hard enough.
I am happy for any advise :)

Cheers,
Philipp
Diane
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Joined: Tue Jun 13, 2017 6:39 pm

Re: Propeller axle strut - Ballad

Post by Diane »

Hi Phillip,

Did you manage to repair your trust? Did you laminated it back? We have the same problem with our Albin Ballad and are seeking for a fast and economic solution.. Any advices?
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