Reply
 
Thread Tools Display Modes
 
Old 04-05-2016, 06:52 PM   #1
Senior Member
 
waddenkruiser's Avatar
 
City: Southern Baltic
Country: Europe
Vessel Name: Sømarken
Vessel Model: AMS 40'
Join Date: Jul 2012
Posts: 183
AMS 40' bottom job

Three years after we purchased her we put our 39 years old AMS 40' for the first time on the hard. Idea was to get a quick bottom paint job done by a reliable ship yard and to be back into the wet elements after 2-3 weeks latest.
Hull looked well after pressure wash, no blisters, no defects, nothing.
Click image for larger version

Name:	ImageUploadedByTrawler Forum1459896036.927860.jpg
Views:	144
Size:	15.9 KB
ID:	50387
BUT the next day identified at the intersection of the hull and the shaft tunnels on both sides suspicious wet areas while the rest of the hull was perfectly dry. Scratched with a screw driver, suddenly some water came out - out of what?
Click image for larger version

Name:	ImageUploadedByTrawler Forum1459895309.316167.jpg
Views:	137
Size:	15.9 KB
ID:	50381
Click image for larger version

Name:	ImageUploadedByTrawler Forum1459895829.370020.jpg
Views:	126
Size:	15.7 KB
ID:	50386
Decided to get the complete underwater hull blasted in order to apply five layers of epoxy (Gelshield) before renew the anti fouling. The PO did that 10 years ago but only in the waterline area.
Again no blisters, no defects.
Click image for larger version

Name:	ImageUploadedByTrawler Forum1459895605.222427.jpg
Views:	138
Size:	14.8 KB
ID:	50382
Knocked on the suspicious areas around the shaft tunnels - sounded hollow and consequently decided to open it.
Click image for larger version

Name:	ImageUploadedByTrawler Forum1459895663.598797.jpg
Views:	135
Size:	15.5 KB
ID:	50383
Click image for larger version

Name:	ImageUploadedByTrawler Forum1459895708.607505.jpg
Views:	135
Size:	18.6 KB
ID:	50384
Click image for larger version

Name:	ImageUploadedByTrawler Forum1459895744.228079.jpg
Views:	131
Size:	19.5 KB
ID:	50385
Obviously 39 years ago the Taiwanese ship yard (AMS hulls were built in Taiwan while the boats were equipped / completed in Hamburg / Germany) made a very poor job in that area by applying the GRP layers not tight enough to the surface of the shaft tunnel / hull intersection.
These areas are now properly rebuilt by the yard before the epoxy layers will be applied.
Will cost time and money but we definitely want to get rid of this issue.
However, taking into account her age she seems to be very robust. No other issues identified beside both hull / shaft tunnel intersections.


best regards / med venlig hilsen
wadden
__________________
Advertisement

__________________
best regards / med venlig hilsen
Wadden
waddenkruiser is offline   Reply With Quote
Old 04-05-2016, 06:55 PM   #2
Enigma
 
RT Firefly's Avatar
 
City: Slicker?
Country: Bumpkin?
Join Date: Oct 2007
Posts: 9,996
Greetings,
Mr. w. Wow.
__________________

__________________
RTF
RT Firefly is offline   Reply With Quote
Old 04-07-2016, 01:24 PM   #3
Senior Member
 
waddenkruiser's Avatar
 
City: Southern Baltic
Country: Europe
Vessel Name: Sømarken
Vessel Model: AMS 40'
Join Date: Jul 2012
Posts: 183
Update: rotted material removed. Now it has to dry some days.
Attached Thumbnails
Click image for larger version

Name:	P1050056.jpg
Views:	1656
Size:	109.7 KB
ID:	50465   Click image for larger version

Name:	P1050057.jpg
Views:	86
Size:	119.9 KB
ID:	50466  
__________________
best regards / med venlig hilsen
Wadden
waddenkruiser is offline   Reply With Quote
Old 04-17-2016, 11:53 AM   #4
Senior Member
 
waddenkruiser's Avatar
 
City: Southern Baltic
Country: Europe
Vessel Name: Sømarken
Vessel Model: AMS 40'
Join Date: Jul 2012
Posts: 183
Update: The rebuild of the hull / shaft tunnel intersection has started. After filling with epoxy they applied already some GRP layers.
Attached Thumbnails
Click image for larger version

Name:	P1050067.jpg
Views:	132
Size:	106.2 KB
ID:	50845   Click image for larger version

Name:	P1050075.jpg
Views:	156
Size:	98.8 KB
ID:	50846  
__________________
best regards / med venlig hilsen
Wadden
waddenkruiser is offline   Reply With Quote
Old 04-17-2016, 11:58 AM   #5
Guru
 
dhmeissner's Avatar
 
City: Seattle
Country: North America
Vessel Name: The Promise
Vessel Model: Roughwater 35
Join Date: Sep 2012
Posts: 1,326
Thanks for posting this mr. wadden. Will you be pulling the shafts and/or replace the cutlass bearings too?
__________________
Dave & Suzie - Roughwater 35
http://thepromiserwb1029.org/2012/09...the-promise-2/
dhmeissner is offline   Reply With Quote
Old 04-17-2016, 12:01 PM   #6
Guru
 
City: Seaford Va on Poquoson River, VA
Country: United States
Vessel Name: Old Glory
Vessel Model: 1970 Egg Harbor 37 extended salon model
Join Date: Jan 2016
Posts: 1,304
Of what advantage are these shaft tunnel extensions?
Some kind of whack job protection as in if the hull hit something, less shaft exposed?
Or underwater streamlining effect? Cant be too much help?

Encasing the entire shaft would stop parasitic water drag on a shaft.
sdowney717 is offline   Reply With Quote
Old 04-17-2016, 04:57 PM   #7
Senior Member
 
waddenkruiser's Avatar
 
City: Southern Baltic
Country: Europe
Vessel Name: Sømarken
Vessel Model: AMS 40'
Join Date: Jul 2012
Posts: 183
Quote:
Originally Posted by dhmeissner View Post
Will you be pulling the shafts and/or replace the cutlass bearings too?
Actually I don't intend to pull the shafts and change the bearings. Clearances seem to be o.k. Engine / shaft alignment to be checked anyhow when back in the wet element.



best regards / med venlig hilsen
wadden
__________________
best regards / med venlig hilsen
Wadden
waddenkruiser is offline   Reply With Quote
Old 04-17-2016, 05:00 PM   #8
Senior Member
 
waddenkruiser's Avatar
 
City: Southern Baltic
Country: Europe
Vessel Name: Sømarken
Vessel Model: AMS 40'
Join Date: Jul 2012
Posts: 183
Quote:
Originally Posted by sdowney717 View Post
Of what advantage are these shaft tunnel extensions?
I raised the same question to the designer and former owner of AMS (he is in the 70s and has retired some years ago). His answer: Just for the ease of cleaning the hull from mussels.

These tubes are just an outside extension, not directly connected to the inside part of the shaft tunnels or stern tubes but "stuck" on the hull. He imposed them to avoid the larger elliptical "mouth" in the hull which results from the angle at which the shaft leaves the hull. He made the experience that inside of the elliptic breakthrough a lot of mussels are accumulating over the time ...
I'm an engineer and from a fluid mechanics perspective these extensions are looking sound and reasonable. Therefore I decided to keep and rebuild them (cutting them off and live with the elliptical "mouth" and invest every three years some time to get the mussels out there would have been an acceptable option) - although there positive effects may be neglected in the speed range we are under way.




best regards / med venlig hilsen
wadden
__________________
best regards / med venlig hilsen
Wadden
waddenkruiser is offline   Reply With Quote
Old 04-21-2016, 11:08 AM   #9
Guru
 
dhmeissner's Avatar
 
City: Seattle
Country: North America
Vessel Name: The Promise
Vessel Model: Roughwater 35
Join Date: Sep 2012
Posts: 1,326
The repair is looking good. Post a pic of the bottom job when your done.
__________________
Dave & Suzie - Roughwater 35
http://thepromiserwb1029.org/2012/09...the-promise-2/
dhmeissner is offline   Reply With Quote
Old 05-04-2016, 02:56 PM   #10
Senior Member
 
waddenkruiser's Avatar
 
City: Southern Baltic
Country: Europe
Vessel Name: Sømarken
Vessel Model: AMS 40'
Join Date: Jul 2012
Posts: 183
AMS 40' bottom job

Update
Work progresses slowly due to cold + windy + rainy weather. Unfortunately we are talking now about end of May / early June to be back swimming again.
Anyhow rebuilt almost done, some grinding work left. And then we have to wait for some warm and dry days to get the epoxy painting job done.
Click image for larger version

Name:	ImageUploadedByTrawler Forum1462388120.464510.jpg
Views:	122
Size:	14.5 KB
ID:	51548Click image for larger version

Name:	ImageUploadedByTrawler Forum1462388144.952556.jpg
Views:	112
Size:	18.4 KB
ID:	51549Click image for larger version

Name:	ImageUploadedByTrawler Forum1462388177.773587.jpg
Views:	122
Size:	16.0 KB
ID:	51550


best regards / med venlig hilsen
wadden
__________________
best regards / med venlig hilsen
Wadden
waddenkruiser is offline   Reply With Quote
Old 05-04-2016, 05:25 PM   #11
Guru
 
City: Hotel, CA
Country: Fried
Join Date: Sep 2011
Posts: 8,328
Progress is a good thing
__________________
Craig

It's easier to fool people than to convince them that they've been fooled - Mark Twain
CPseudonym is offline   Reply With Quote
Old 05-23-2016, 03:34 AM   #12
Senior Member
 
waddenkruiser's Avatar
 
City: Southern Baltic
Country: Europe
Vessel Name: Sømarken
Vessel Model: AMS 40'
Join Date: Jul 2012
Posts: 183
We will hopefully come to an end with our bottom job soon. After preparing for the paint job the first two layers of epoxy (International Gelshield 200) have been applied. Now the residual pores (caused by the sand blasting) in the surface have to be filled followed by three additional layers of Gelshield.
Click image for larger version

Name:	ImageUploadedByTrawler Forum1463988597.267271.jpg
Views:	104
Size:	46.5 KB
ID:	52287Click image for larger version

Name:	ImageUploadedByTrawler Forum1463988718.743058.jpg
Views:	102
Size:	44.3 KB
ID:	52288


best regards / med venlig hilsen
wadden
__________________
best regards / med venlig hilsen
Wadden
waddenkruiser is offline   Reply With Quote
Old 05-23-2016, 06:05 AM   #13
Guru
 
swampu's Avatar


 
City: Biloxi, MS
Country: USA
Vessel Name: Cajun Rose
Vessel Model: Biloxi Lugger
Join Date: Jul 2011
Posts: 1,144
Nice looking good
swampu is offline   Reply With Quote
Old 05-27-2016, 03:13 AM   #14
Senior Member
 
waddenkruiser's Avatar
 
City: Southern Baltic
Country: Europe
Vessel Name: Sømarken
Vessel Model: AMS 40'
Join Date: Jul 2012
Posts: 183
AMS 40' bottom job

5 layers of epoxy (Gelshield) and the prime coat for the anti fouling are applied. Next week anti fouling to be painted. Then we can address some other small issues on deck.
From now on we are in the schedule we originally intended: Renew anti fouling and make small repairs all within two weeks. Unfortunately the hole story took ten additional weeks due to the rotted spots we identified. Long time and hell of money ...
Click image for larger version

Name:	ImageUploadedByTrawler Forum1464333161.925788.jpg
Views:	105
Size:	44.3 KB
ID:	52422


best regards / med venlig hilsen
wadden
__________________
best regards / med venlig hilsen
Wadden
waddenkruiser is offline   Reply With Quote
Old 05-27-2016, 09:11 AM   #15
Guru
 
Aquabelle's Avatar
 
City: sydney
Country: australia
Vessel Name: Aquabelle
Vessel Model: Ocean Alexander Flushdeck
Join Date: Jun 2012
Posts: 538
Thanks for this very interesting post and the comprehensive photos. I am not familiar with AMS boats...could you post a wide-view photo of the vessel please?
Aquabelle is online now   Reply With Quote
Old 05-27-2016, 11:20 AM   #16
Senior Member
 
waddenkruiser's Avatar
 
City: Southern Baltic
Country: Europe
Vessel Name: Sømarken
Vessel Model: AMS 40'
Join Date: Jul 2012
Posts: 183
Quote:
Originally Posted by Aquabelle View Post
Thanks for this very interesting post and the comprehensive photos. I am not familiar with AMS boats...could you post a wide-view photo of the vessel please?

Click image for larger version

Name:	ImageUploadedByTrawler Forum1464362341.198646.jpg
Views:	2443
Size:	23.3 KB
ID:	52435
Don't have a better pic handy ...


best regards / med venlig hilsen
wadden
__________________
best regards / med venlig hilsen
Wadden
waddenkruiser is offline   Reply With Quote
Old 05-27-2016, 11:28 AM   #17
Guru
 
City: Hotel, CA
Country: Fried
Join Date: Sep 2011
Posts: 8,328
Great looking boat Wadden. You just may have more fenders deployed per foot of boat than Mark Pierce's Carquinez Coot in that photo.
__________________
Craig

It's easier to fool people than to convince them that they've been fooled - Mark Twain
CPseudonym is offline   Reply With Quote
Old 05-27-2016, 12:49 PM   #18
Veteran Member
 
City: Norfolk
Country: VA
Vessel Model: 48' duck
Join Date: Aug 2015
Posts: 47
Quote:
Originally Posted by CPseudonym View Post
Great looking boat Wadden. You just may have more fenders deployed per foot of boat than Mark Pierce's Carquinez Coot in that photo.
Did we have to take it that far?
I can't say to much. I'm on my out to spend 15 days pulling a Pulse 12 (metal detector) and we pulled out all the ropes and fenders on the deck to wash. I know at one point there were 18 fenders hanging off the port side.
choppywater is offline   Reply With Quote
Old 05-27-2016, 01:22 PM   #19
Senior Member
 
waddenkruiser's Avatar
 
City: Southern Baltic
Country: Europe
Vessel Name: Sømarken
Vessel Model: AMS 40'
Join Date: Jul 2012
Posts: 183
THX.
Pic was taken when we purchased her and shows all fenders we bought together with her. Can't remember why all of them were deployed at that moment. And I have to admit that we have now two really big balls in addition to protect the bow. If under way all four balls are stored at stern around the gang way. Somebody approaching us from stern might think of us as a "fender carrier" in front 😀


best regards / med venlig hilsen
wadden
__________________
best regards / med venlig hilsen
Wadden
waddenkruiser is offline   Reply With Quote
Old 05-27-2016, 01:42 PM   #20
Guru
 
City: Hotel, CA
Country: Fried
Join Date: Sep 2011
Posts: 8,328
LOL

I'll take your word about the size of your balls, no pictures necessary
__________________

__________________
Craig

It's easier to fool people than to convince them that they've been fooled - Mark Twain
CPseudonym is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





All times are GMT -5. The time now is 01:14 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012