Boatmad.com


Reply
 
Thread Tools Display Modes
 
Old 02-04-2014, 10:13 PM   #1
Registered User
 
freedom's Avatar
 
Country: engalnd
Location: south west
Interests: ski racing
Boat name: Jack'd up, hellraiser
Boat make: Bernico 19 ET, ring 16
Engines: merc 135, merc 175, yam 90
Cruising area: Plymouth

Join Date: Jun 2006
Location: south west
Posts: 1,170
transom rebuild?

On closer inspection my transom is very poorly
Any advice, threads on how to fix?
Thanks
Chris
__________________

freedom is offline   Reply With Quote
Old 03-04-2014, 10:53 AM   #2
Registered User
 
DoubleSix's Avatar
 
Country: In the UK, in an offfice, looking out the window at the rain.
Occupation: Chartered Engineer
Interests: boats, water, snow, football
Boat name: DoubleSix
Boat make: Ring 21c
Engines: Opti 200
Cruising area: Lyme Bay

Join Date: Aug 2012
Posts: 125
Sorry I don't have any advice, but I just noticed the irony of your post that made me smile.

You have a dodgy transom and your sign off says 225 HP on the way!

Hope you manage to get it fixed without too much pain and grief, summer is coming.
__________________

DoubleSix is offline   Reply With Quote
Old 03-04-2014, 01:30 PM   #3
Registered User
 
Marinautic's Avatar
 
Country: UK
Location: Poole
Occupation: Mercury/Mercruiser Sales

Join Date: Sep 2007
Location: Poole
Posts: 503
I assume the boat has an outboard well, so it's a difficult job. Unless it's a fairly decent boat, or your able to do the job yourself, then the cost of it quite often comes to more than the value of the boat. If the transom needs a complete replacement, then you need to either take the deck off, of cut the well out. This together with the cost of materials, is £££££
__________________
https://www.facebook.com/Marinautic-...5205578496744/

"I think you're right" Cookee 13/11/13
Marinautic is offline   Reply With Quote
Old 03-04-2014, 08:46 PM   #4
Registered User
 
Big Dutch's Avatar
 
Country: Guernsey Channel Isles
Location: West Coast
Occupation: Hotelier
Interests: Powerboat racing
Boat name: Vodkatini,Cap Camarat,Easy RiderSuper Rider & Hirrondelle
Boat make: Phantom 21,Jeaneau 925 Avenger19.Lorne Campbell Slipstream Tremlett 21.Tigershark 21
Engines: Volvo 5 litre,Merc 115 Tower,Twin 250 Suzukis and 145 Mercruiser LX
Cruising area: Channel Islands and French coast

Join Date: Jan 2009
Location: West Coast
Posts: 612
It's a bit of a job putting in a new transom. I've been fitting a new one to my Avenger19 over the winter together with new knees and stringers.
I have seen transoms braced with Stainless struts and reinforced with more plywood glassed In between the knees and SS engine plates.
It depends how bad it is really.
I see the Americans have a pourable solution to transoms where they just cut off the top lip of the transom a GRP takeout the rot and pour in a two pack mixture.
The best you can do to evaluate how bad it is is to tap all over the inside of the transom with a hammer and listen for a change in pitch.where it's nice and firm there will be a firm sound and softens where the rot is. Also look for flex and stress marks.
It's a shame to write off these old boats- have you got any carpenter and or GRP laminator mates ?
__________________
Guernsey - The home of offshore powerboat racing
Big Dutch is offline   Reply With Quote
Old 03-04-2014, 08:56 PM   #5
Registered User
 
glen76's Avatar
 
Country: england
Location: southampton
Occupation: engineer
Interests: lots
Boat make: scorpion 8.1
Engines: 250HO
Cruising area: solent

Join Date: Mar 2004
Location: southampton
Posts: 1,336
inside out, or outside in.... thats all you have to choose.

If you have good rear access, take it out form inside, but you will need access to the top of transom, most likely.

Outside in, they just seem to chop em off, leave a lip. then glass new wood in. Seems an easier route to me, except the sanding and making it look good.
I still cant work out, why no one laminates gel, then fibreglas, then wood to a flat surface, the size of the transom, then glues that into the rear of the boat. there must be a reason as no one seems to do it.

PS TD likes transoms
glen76 is offline   Reply With Quote
Old 03-04-2014, 10:09 PM   #6
Registered User
 
Country: uk
Location: up north
Interests: boats
Boat make: Avenger 21
Engines: merc 150 il6
Cruising area: in my pond

Join Date: Nov 2012
Location: up north
Posts: 53
transom replacement

I have just replaced transom on a 21ft Avenger .big job hopefully well worth doing. I also glassed on a gel faced panel to 50mm of marine ply and am very pleased with the finish so far. will try to add some pics
Attached Thumbnails
Click image for larger version

Name:	DSCN0281.jpg
Views:	292
Size:	81.0 KB
ID:	41380   Click image for larger version

Name:	DSCN0233.jpg
Views:	312
Size:	125.3 KB
ID:	41381  
born free is offline   Reply With Quote
Old 04-04-2014, 01:49 AM   #7
Registered User
 
Country: UK
Location: Surrey
Occupation: Motorsport Development inc Engine Managment
Boat make: 21ft
Engines: Various
Cruising area: Solent / Kent / Cornwall

Join Date: Oct 2011
Location: Surrey
Posts: 375
I rebuilt the transom on my fletcher and also just finishing off a new 54mm + glass transom o my sports cuddy. Its a lot of work but doable. I've done mine from the inside... removing the old one is the challenge. I chiselled out what I could the ground out the rest. Both transoms were worse than they appeared. If you thnk its rotten then its probably worse than it looks.
beyondhelp is offline   Reply With Quote
Old 04-04-2014, 10:49 AM   #8
Registered User
 
Hydrostream's Avatar
 
Country: Ireland
Location: Dublin
Occupation: Boatbuilder
Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
Engines: 300Hp Mercury 2.4, 130 Yamaha, Bridgeport EFI, XR6, Merc 200.
Cruising area: Malahide, Dublin

Join Date: May 2004
Location: Dublin
Posts: 1,803
We do them all the time.. my rule of thumb is about 1000 euro plus cosmetics.
Easiest way by far is to cut the well out, then glass it back in.

Cosmetics is finishing in the well, either spray in 2 pack.. cheaper or gelcoat.. a bit more expensive.
Attached Thumbnails
Click image for larger version

Name:	2.jpg
Views:	337
Size:	92.1 KB
ID:	41383   Click image for larger version

Name:	5.jpg
Views:	313
Size:	97.6 KB
ID:	41384   Click image for larger version

Name:	6.jpg
Views:	292
Size:	107.8 KB
ID:	41385   Click image for larger version

Name:	7.jpg
Views:	289
Size:	105.0 KB
ID:	41386  
__________________
www.powermarine.ie

[SIGPIC][/SIGPIC]
Hydrostream is offline   Reply With Quote
Old 04-04-2014, 01:15 PM   #9
Dan
On a roll
 
Dan's Avatar
 
Country: England
Location: Plymouth
Occupation: Anything in metal
Interests: Bristol Rovers, Cider & Boats
Boat name: Aqua Thunder, Badboy
Boat make: Bernico F2, Phantom 21
Engines: Merc 280efi, Merc 260efi
Cruising area: Worldwide

Join Date: Mar 2004
Location: Plymouth
Posts: 2,189
Quote:
Originally Posted by freedom View Post
On closer inspection my transom is very poorly
Any advice, threads on how to fix?
Thanks
Chris
What boats this Chris?
__________________
All hail to Jail Ale
Dan is offline   Reply With Quote
Old 05-04-2014, 01:27 AM   #10
Registered User
 
Country: England
Location: Essex
Occupation: Retired
Interests: too many
Boat name: Bermuda and Jack Wise
Boat make: P18 and Crusader16
Engines: 150merc and looking for a SB chevy

Join Date: Aug 2012
Location: Essex
Posts: 27
Finished making a new transom late last year,sealed it but could not fit it in time,i only had one sash clamp so screw planning was important.
Attached Thumbnails
Click image for larger version

Name:	7.jpg
Views:	232
Size:	82.1 KB
ID:	41388   Click image for larger version

Name:	5.jpg
Views:	213
Size:	134.6 KB
ID:	41389   Click image for larger version

Name:	2.jpg
Views:	239
Size:	106.2 KB
ID:	41390   Click image for larger version

Name:	8.jpg
Views:	200
Size:	57.6 KB
ID:	41391   Click image for larger version

Name:	11.jpg
Views:	225
Size:	73.7 KB
ID:	41392  

Shaun is offline   Reply With Quote
Old 05-04-2014, 08:37 AM   #11
Registered User
 
glen76's Avatar
 
Country: england
Location: southampton
Occupation: engineer
Interests: lots
Boat make: scorpion 8.1
Engines: 250HO
Cruising area: solent

Join Date: Mar 2004
Location: southampton
Posts: 1,336
Quote:
Originally Posted by born free View Post
I have just replaced transom on a 21ft Avenger .big job hopefully well worth doing. I also glassed on a gel faced panel to 50mm of marine ply and am very pleased with the finish so far. will try to add some pics
so did you lay it up with gel before fitting to boat? Looks good.

What wood do you lot use?
glen76 is offline   Reply With Quote
Old 05-04-2014, 04:59 PM   #12
Registered User
 
Country: uk
Location: up north
Interests: boats
Boat make: Avenger 21
Engines: merc 150 il6
Cruising area: in my pond

Join Date: Nov 2012
Location: up north
Posts: 53
Quote:
Originally Posted by glen76 View Post
so did you lay it up with gel before fitting to boat? Looks good.

What wood do you lot use?
I actually used a cured seperate 2mm gel finished panel then laid up 2x sheets of csm and pressed them onto the marine ply and left them clamped for a day . next job is to turn boat over rub the lot down and re-gel ! just need some time
born free is offline   Reply With Quote
Old 09-04-2014, 07:26 AM   #13
Registered User
 
Country: The Netherlands
Boat make: RING 21C
Engines: Mercury 2.4carb 200 (Mazco RE4, Chopper 24, Tempest 24)
Cruising area: The Netherlands, Gardalake (IT)

Join Date: Sep 2007
Posts: 152
My Ring 21C (done by person here in Holland).. Just for the pictures, it's all in Dutch

http://www.snelleboten.nl/viewtopic....=asc&start=240
M.arco is offline   Reply With Quote
Old 05-05-2014, 02:53 PM   #14
Registered User
 
glen76's Avatar
 
Country: england
Location: southampton
Occupation: engineer
Interests: lots
Boat make: scorpion 8.1
Engines: 250HO
Cruising area: solent

Join Date: Mar 2004
Location: southampton
Posts: 1,336
What timber you lot using in UK?
glen76 is offline   Reply With Quote
Old 05-05-2014, 11:36 PM   #15
Registered User
 
Country: England
Location: Essex
Occupation: Retired
Interests: too many
Boat name: Bermuda and Jack Wise
Boat make: P18 and Crusader16
Engines: 150merc and looking for a SB chevy

Join Date: Aug 2012
Location: Essex
Posts: 27
Quote:
Originally Posted by glen76 View Post
What timber you lot using in UK?
Personally i used 18mm marine plywood from Leigh Timber,i found it had the right amount of flexibility for laminating (3x18mm=54mm),i got the transom the stringers and fuel tank bracers out of one 8'x4' sheet.
Shaun is offline   Reply With Quote
Old 01-10-2016, 02:38 PM   #16
Registered User
 
Country: uk
Location: essex
Occupation: s/e motor mechanic
Interests: watersports squash
Boat name: floozie
Boat make: 170 bayliner
Engines: 125 mercury force
Cruising area: essex river crouch

Join Date: Sep 2016
Location: essex
Posts: 30
hi shaun I am Essex based have a 170 bay liner these only have wood directly where outboards mount not across whole rear of boat so have you any ideas about replacing transom timber on this have seen american idea of poured chemical but seems to be some concern on boats where transom skin do not extend from one side to other thanks
__________________

boatpain 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


Powered by vBadvanced CMPS v3.2.3

All times are GMT +1. The time now is 04:36 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×