Reply
 
Thread Tools Search this Thread
 
Old 23 May 2015, 16:13   #1
Member
 
Country: USA
Town: Benson
Boat name: Zodiac
Make: Zodiac
Length: 3m +
Engine: outboard
Join Date: Jun 2014
Posts: 19
Thrust board replacement

1981 mk2 C: wood floor is in generally good shape...but the glued in thrust board was toast. The board is out and available as a template. Any tips on re installing the board...Thinking I need to cut ney hypalon sections to add mounts to the tubes???
__________________
dizzyspots is offline   Reply With Quote
Old 27 May 2015, 03:44   #2
Member
 
Country: USA
Town: Benson
Boat name: Zodiac
Make: Zodiac
Length: 3m +
Engine: outboard
Join Date: Jun 2014
Posts: 19
bump?
__________________
dizzyspots is offline   Reply With Quote
Old 27 May 2015, 13:09   #3
Member
 
Projectile's Avatar
 
Country: Canada
Boat name: WB465
Make: Zodiac
Length: 4m +
Engine: 2013 ETEC 30
Join Date: Dec 2012
Posts: 256
I don't know much about this, but I can tell you that the position and tension on that thrust board will be very important because when the floorboards are in place up against the resistance that the thrust board provides, they stretch out the fabric on the bottom of the boat giving the hull its proper shape (along with proper keel inflation). If that doesn't happen - if the floor isn't stretched out enough with enough tension, the hull can get a hook in it causing horrible, nose down performance with acceleration.
__________________
Projectile is offline   Reply With Quote
Old 27 May 2015, 13:48   #4
Member
 
Country: USA
Town: Benson
Boat name: Zodiac
Make: Zodiac
Length: 3m +
Engine: outboard
Join Date: Jun 2014
Posts: 19
Good morning Projectile,
Thank you for that info. That helps.
Cheers
Mike
__________________
dizzyspots is offline   Reply With Quote
Old 27 May 2015, 18:16   #5
Member
 
The Gurnard's Avatar
 
Country: UK - Scotland
Town: Stirling
Boat name: The Gurnard
Make: Quicksilver
Length: 4m +
Engine: mariner 25hp 2s
Join Date: Jul 2013
Posts: 1,664
Do you have any photos dizzyspots ..it may help others with what you are asking about. ?

Perhaps you got few answers initially because of the term "Thrust Board" ?

I have three SIBS but no idea what one is..perhaps its just a different term for the wooden Transom ? If it is..then perhaps others can offer some advice. ?

I sincerely hope you find what you need .. regardless of my ignorance of what a thrust board is
__________________
The Gurnard is offline   Reply With Quote
Old 27 May 2015, 18:26   #6
Member
 
Country: USA
Town: S. Carolina
Boat name: D560
Make: Avon
Length: 5m +
Engine: 2016 Merc 115hp CT
Join Date: Aug 2013
Posts: 1,277
Quote:
Originally Posted by The Gurnard View Post
sincerely hope you find what you need .. regardless of my ignorance of what a thrust board is



See the board to towards the bow? It is glued in place. That is a thrust board. They often rot due to being left in the trailer with water inside the boat, or they just simply come unglued over time.
__________________
Richard
Gluing geek since 2007
Opinions and intepretations expressed are solely my own and do not express the views or opinions of my employer
office888 is offline   Reply With Quote
Old 27 May 2015, 18:56   #7
Member
 
Country: USA
Town: Benson
Boat name: Zodiac
Make: Zodiac
Length: 3m +
Engine: outboard
Join Date: Jun 2014
Posts: 19
Thanks 888..that is exactly what I need help on...I can see where it would be critical for forming a proper inflatable keel. ...I have the old rotten board to use as a pattern....plan is to glue a new board in place with tubes inflated....then reinstall the floor...am I on the right track??
__________________
dizzyspots is offline   Reply With Quote
Old 27 May 2015, 19:17   #8
Member
 
Country: USA
Town: S. Carolina
Boat name: D560
Make: Avon
Length: 5m +
Engine: 2016 Merc 115hp CT
Join Date: Aug 2013
Posts: 1,277
Quote:
Originally Posted by dizzyspots View Post
Thanks 888..that is exactly what I need help on...I can see where it would be critical for forming a proper inflatable keel. ...I have the old rotten board to use as a pattern....plan is to glue a new board in place with tubes inflated....then reinstall the floor...am I on the right track??
You completely are!

The floor needs to be unglued to properly install the thrustboard.

REPLACEMENT MUST BE EXACT TO THE ORIGINAL.

Too far forward or too far backward will alter the floorboard stretch (referred to as "GRIP" by Zodiac). The tolerance for this is about +/- 15mm, depending on which model boat it is.
__________________
Richard
Gluing geek since 2007
Opinions and intepretations expressed are solely my own and do not express the views or opinions of my employer
office888 is offline   Reply With Quote
Old 27 May 2015, 19:28   #9
Member
 
The Gurnard's Avatar
 
Country: UK - Scotland
Town: Stirling
Boat name: The Gurnard
Make: Quicksilver
Length: 4m +
Engine: mariner 25hp 2s
Join Date: Jul 2013
Posts: 1,664
Thanks for the info on the thrust board guys.. I see what it is now.. my inflatable dont have them. It was worth asking too..as you got a good response to your question dizzyspots
__________________
The Gurnard is offline   Reply With Quote
Old 27 May 2015, 20:10   #10
Member
 
Country: Canada
Town: GTA
Boat name: Seabright
Make: Seabright
Length: 5m +
Engine: 50 HP ETec Tiller
Join Date: Aug 2010
Posts: 234
I had a 1980s Mark 2C, and it didn't have a board like that.
__________________
Northern Pike is offline   Reply With Quote
Old 27 May 2015, 23:53   #11
Member
 
Country: USA
Town: S. Carolina
Boat name: D560
Make: Avon
Length: 5m +
Engine: 2016 Merc 115hp CT
Join Date: Aug 2013
Posts: 1,277
Quote:
Originally Posted by Northern Pike View Post
I had a 1980s Mark 2C, and it didn't have a board like that.
Which?

There a lot of them with varying features. Futura, Virage, Tour.S, Touring, GT... Not to mention, there were about 5-6 model revisions thanks to increases in technology between 1980-1990.

With that being said, thrustboards are pretty obsolete technology...they do hold up better though in rough seas though. There's less of a chance of a floor panel being knocked free.

But then again, who has actually taken their SIB on 2 to 3 meter swells before?
__________________
Richard
Gluing geek since 2007
Opinions and intepretations expressed are solely my own and do not express the views or opinions of my employer
office888 is offline   Reply With Quote
Old 28 May 2015, 02:05   #12
Member
 
Country: USA
Town: Benson
Boat name: Zodiac
Make: Zodiac
Length: 3m +
Engine: outboard
Join Date: Jun 2014
Posts: 19
my thrust board is already out ...courtesy of the rot and prior owner. Im cleaning the old glue(s) off the prior repair areas in preparation to reattaching the floor..seems like the thrust board attachment points are pretty well defined...not sure how accurate the width needs to be...
__________________
dizzyspots is offline   Reply With Quote
Old 29 May 2015, 19:59   #13
Member
 
Country: USA
Town: Benson
Boat name: Zodiac
Make: Zodiac
Length: 3m +
Engine: outboard
Join Date: Jun 2014
Posts: 19
Got a tremendous amount of information from the tech dept at Zodiac USA thank you Sir!!
__________________
dizzyspots is offline   Reply With Quote
Old 12 August 2015, 22:53   #14
Member
 
Country: USA
Town: Benson
Boat name: Zodiac
Make: Zodiac
Length: 3m +
Engine: outboard
Join Date: Jun 2014
Posts: 19
ready to fabricate new thrust board..I have old board for template...seems lightweight wood for being 3/4 in thick. any ideas what kind of wood it is..(its not multiply) or a suitable replacement
__________________
dizzyspots is offline   Reply With Quote
Old 12 August 2015, 23:40   #15
Member
 
Country: UK - England
Town: evesham
Boat name: philipe
Make: zodiac
Length: 3m +
Join Date: Apr 2014
Posts: 48
I think it's Ash.
__________________
McNish is offline   Reply With Quote
Old 13 August 2015, 05:15   #16
Member
 
cgoing's Avatar
 
Country: USA
Town: Connecticut
Make: Zodiac
Length: 6m +
Engine: Undecided
Join Date: Nov 2009
Posts: 777
Some of them were mahogany
__________________
Chris Going
DinghyPro
dinghyproct@gmail.com
www.DinghyPro.net
cgoing is offline   Reply With Quote
Old 03 August 2021, 02:21   #17
Member
 
Country: Canada
Town: London
Boat name: Avon SR4
Make: Avon
Length: 4m +
Engine: Outboard /petrol
Join Date: Sep 2019
Posts: 3
Hi Dizzy, I realize you did this thruster board remount for years ago. I just bought a 1983 Grand Raid MK2 The thruster board is being held in place with gorilla tape. do you have any pictures of how you re-glued the board in place.I plan to use new piece of marine plywood laminated in fiberglass and coated in expoxy.
thank
__________________
AJGentile is offline   Reply With Quote
Reply


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. The time now is 19:48.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.