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Old 11 April 2016, 19:28   #11
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Country: Canada
Town: Vancouver Island
Boat name: Umm....boat. :)
Make: Zodiac GR MKII
Length: 4m +
Engine: Evinrude 25 HP
Join Date: Mar 2016
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Quote:
Originally Posted by jwalker View Post
If you do that, be sure to rough up the surface of the wood to provide a key - drag a hand saw criss-cross all over it to tear it up - because polyester resin doesn't adhere well to the surface of plywood.
Good point, I'll prep as you say.
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Old 16 April 2016, 22:33   #12
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Country: Canada
Town: Vancouver Island
Boat name: Umm....boat. :)
Make: Zodiac GR MKII
Length: 4m +
Engine: Evinrude 25 HP
Join Date: Mar 2016
Posts: 80
A deal has been struck.

Boat is free and I get the 5 year old galvanized trailer for $300. or 165 pounds. Pick up is tomorrow morning.

I'm quite chuffed!!
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Old 17 April 2016, 23:25   #13
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Country: Canada
Town: Vancouver Island
Boat name: Umm....boat. :)
Make: Zodiac GR MKII
Length: 4m +
Engine: Evinrude 25 HP
Join Date: Mar 2016
Posts: 80
Picked up the boat this morning and was very surprised to learn that the trailer was offered to me for free. Its a solid bit of galvanized kit and totally road worthy. Felt bad about taking it for free so I threw in some more money for a posh dinner in appreciation. I couldn't be happier with the way things went.
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Old 17 April 2016, 23:29   #14
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Country: Canada
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Make: Zodiac GR MKII
Length: 4m +
Engine: Evinrude 25 HP
Join Date: Mar 2016
Posts: 80
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Old 18 April 2016, 11:21   #15
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Country: USA
Town: S. Carolina
Boat name: D560
Make: Avon
Length: 5m +
Engine: 2016 Merc 115hp CT
Join Date: Aug 2013
Posts: 1,121
A warning for you my friend:

The boat is a 1985. Looking at the seams, this is"hybrid" year. Zodiac experimented with cross gluing PVC-to-CSM and vice versa.

Hypalon/CSM tubes
PVC d-rings
PVC transom attachment
PVC floor
PVC keel (maybe?)
PVC baffles (maybe?)

The good news is that if you reglue the transom with CSM/Neo material instead of PVC, the gluing will last an indefinite amount of time. If you reglue with PVC, you'll probably get another 10-15 years before regluing is required.
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Old 18 April 2016, 12:57   #16
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Country: Canada
Town: Vancouver Island
Boat name: Umm....boat. :)
Make: Zodiac GR MKII
Length: 4m +
Engine: Evinrude 25 HP
Join Date: Mar 2016
Posts: 80
Quote:
Originally Posted by office888 View Post
A warning for you my friend:

The boat is a 1985. Looking at the seams, this is"hybrid" year. Zodiac experimented with cross gluing PVC-to-CSM and vice versa.

Hypalon/CSM tubes
PVC d-rings
PVC transom attachment
PVC floor
PVC keel (maybe?)
PVC baffles (maybe?)

The good news is that if you reglue the transom with CSM/Neo material instead of PVC, the gluing will last an indefinite amount of time. If you reglue with PVC, you'll probably get another 10-15 years before regluing is required.
Thanks for the heads up.

So if I understand this correctly, I would be better off replacing all the transom support bits with hypalon material and glue. Would I need any kind of primer coat applied first or just use standard hypalon gluing methodology...
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Old 18 April 2016, 14:44   #17
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Country: USA
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Boat name: D560
Make: Avon
Length: 5m +
Engine: 2016 Merc 115hp CT
Join Date: Aug 2013
Posts: 1,121
Quote:
Originally Posted by Bodge View Post
Thanks for the heads up.

So if I understand this correctly, I would be better off replacing all the transom support bits with hypalon material and glue. Would I need any kind of primer coat applied first or just use standard hypalon gluing methodology...
Standard hypalon glue layup. It bonds just fine to wood with no special primer.

You may have a piece of "rubber" triangular extrusion underneath the strip that goes from the transom to the boat. That is made of a PVC material and will need to be replaced by a piece of EPDM or Neoprene.

You could probably use the piece from the F470. Zodiac PN Z7015 "Transom Extrusion , NEO (2m).
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Old 18 April 2016, 20:08   #18
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Country: Canada
Town: Vancouver Island
Boat name: Umm....boat. :)
Make: Zodiac GR MKII
Length: 4m +
Engine: Evinrude 25 HP
Join Date: Mar 2016
Posts: 80
Quote:
Originally Posted by office888 View Post
Standard hypalon glue layup. It bonds just fine to wood with no special primer.

You may have a piece of "rubber" triangular extrusion underneath the strip that goes from the transom to the boat. That is made of a PVC material and will need to be replaced by a piece of EPDM or Neoprene.

You could probably use the piece from the F470. Zodiac PN Z7015 "Transom Extrusion , NEO (2m).
Thanks for the great info and the part number.

The "rubber" piece on my GR MK2 is quite noticeable, the one on the C5 is almost nonexistent. I have not disassembled anything yet as I am away working and need to drag the boat home when done here. Is it possible that the C5 may not have one?
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Old 19 April 2016, 08:57   #19
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Country: USA
Town: S. Carolina
Boat name: D560
Make: Avon
Length: 5m +
Engine: 2016 Merc 115hp CT
Join Date: Aug 2013
Posts: 1,121
Quote:
Originally Posted by Bodge View Post
Thanks for the great info and the part number.

The "rubber" piece on my GR MK2 is quite noticeable, the one on the C5 is almost nonexistent. I have not disassembled anything yet as I am away working and need to drag the boat home when done here. Is it possible that the C5 may not have one?
The engineer behind the boat may have decided to omit it as a cost savings to keep the product price lower.

If you are using the boat with a moderate size older 2-stroke, you probably have nothing to fear.

The piece serves to reduce the forces on the transom-to-tube material connection. By reducing the angle to a slow progression, it maximizes the the gluing strength so the glue is only tensioned at its "strongest" positions. Glue is weak from a "peeling" motion, but is strongest when present with forces that pull directly "upward" from the base substrate.

By having a sharp angle, there is a possibility of it peeling from the center then outward.

Of course, by upgrading to CSM/Neo fabric, you may eliminate this possibility.

If there is no "rubber" piece, I would simply use some heavy duty black fabric. You should be able to source from black Pennel & Flipo Orca 866 or similar? It has a heavier polyester base fabric to it.

When you are templating the old cuts, I would extend them outwards an additional 1-2" or so...more gluing overlap can only help. Also, be sure to pay attention to the crosshatching bias of the fabric (if you look close, you can see a "#" shaped weave). It stretches easier with an angle against the "grain" of the weave. If you try to stretch against the weave, it will not stretch.
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Old 19 April 2016, 10:35   #20
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Country: USA
Town: Cali
Boat name: Thumper
Make: Avon CRRC 4.5
Length: 4m +
Engine: Merc 50
Join Date: Jun 2012
Posts: 363
Great to see this fine boat coming back into service.

I would like to say thanks to Richard (Office888) for his knowledgeable posts
to this community. He has also been a big help to me.

Cheers,
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