Dolphin striker rod loose :: Catamaran Sailboats at TheBeachcats.com

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Dolphin striker rod loose

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revintage

Rank: Mate

Registered: Aug 13, 2017

Last visit: Jan 26, 2025

Posts: 282
Posted: Mar 10, 2022 - 11:37 AM

Hey Philip,
My answer was not to you, as you already know how to do it. It was to inform Andinista that the compression tube wasn´t the real problem.

We are all here to help him with a specific issue aren´t we ?

Edited by revintage on Mar 10, 2022 - 11:38 AM.

--
Brgds
Lars

Frankentri 5.8/5.5/Inter20
Aerow trimaran foiler

https://www.facebook.com/groups/1192604934176635
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Andinista

Rank: Mate

Registered: Aug 18, 2003

Last visit: Dec 13, 2023

Posts: 880
Posted: Apr 10, 2022 - 02:09 PM

Today I installed a new rod and compression tube, I thought I could live with the bigger hole on the beam, but here’s the problem: when I tightened the lower nut to tension the DS strap, because the compression tube goes through the upper hole on the beam, as I tightened the nut, instead of tensioning the strap I was deforming the lower part of the beam… not good. What I did was adding the washers of the old set inside the beam, at each end of the compression tube, i had to cut the compression tube to make room for the washers. I don’t think I need to reinforce the beam yet, it seems strong enough. I used lots of tefgel everywhere.. to slide the compression tube with the washers inside the beam, I used masking tape: to fix the washers at both sides and to fix the tube to the tiller crossbar that I used to insert the tube inside the beam.
revintage

Rank: Mate

Registered: Aug 13, 2017

Last visit: Jan 26, 2025

Posts: 282
Posted: Apr 10, 2022 - 06:59 PM

Not sure I follow you there, but you must have an oversize thick washer(preferably trimmed to follow the beam radius) on the outside, between the lower nut and the beam if you want it to work.

--
Brgds
Lars

Frankentri 5.8/5.5/Inter20
Aerow trimaran foiler

https://www.facebook.com/groups/1192604934176635
--
Andinista

Rank: Mate

Registered: Aug 18, 2003

Last visit: Dec 13, 2023

Posts: 880
Posted: Apr 10, 2022 - 07:03 PM

Now I have 4 washers, two outside the beam and two inside the beam, the latter to avoid that the compressor tube goes through the beam.

Edited by Andinista on Apr 10, 2022 - 07:05 PM.
tominpa

Rank: Mate

Registered: Jul 29, 2015

Last visit: Feb 03, 2025

Posts: 601
Posted: Apr 10, 2022 - 08:54 PM

That sounds like quite the trick to accomplish. Well done!

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Tom
NACRA 5.7 (1984 Sail 181)
Pennsylvania
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revintage

Rank: Mate

Registered: Aug 13, 2017

Last visit: Jan 26, 2025

Posts: 282
Posted: Apr 13, 2022 - 05:59 AM

Hi Andinista,

Quotewhen I tightened the lower nut to tension the DS strap, because the compression tube goes through the upper hole on the beam, as I tightened the nut, instead of tensioning the strap I was deforming the lower part of the beam… not good.

To small washer on the lower outside of the beam? I understand you didn´t have the mast up when tensioning.

Hope everything will work now!

Edited by revintage on Apr 13, 2022 - 06:53 AM.

--
Brgds
Lars

Frankentri 5.8/5.5/Inter20
Aerow trimaran foiler

https://www.facebook.com/groups/1192604934176635
--
Andinista

Rank: Mate

Registered: Aug 18, 2003

Last visit: Dec 13, 2023

Posts: 880
Posted: Apr 13, 2022 - 07:20 AM

revintage
To small washer on the lower outside of the beam? I understand you didn´t have the mast up when tensioning.

Hope everything will work now!Edited by revintage on Apr 13, 2022 - 06:53 AM.

I didn’t get bigger washers, I guess it might have worked but the deformation wasn’t small, maybe 2” diameter. Now that I have ss inside in contact with aluminum I guess I’ll have to check every year or so for corrosion.