Haul repair

MoldMoney

Cadet
Joined
Jul 20, 2024
Messages
7
Hey Folks,
This is my first boat restoration on a 1989 Maxum 16' fiberglass haul boat. Whole re doing the floors my buddy cut through the haul in two spots with a Multitool blade in two spots. One spots is roughly 12 inches long the other is 3 inches. The thickness of the cuts are roughly 1/16-1/8 inch thick. I've been doing some research and I've come across some conflicting statements. Some people say to just pack with peanut butter and sand. Others say grind the area and lay mat and glass from both the inside and outside. Given how thin the cuts are I could see how peanut butter would be easier but I doubt the strength, and on the flip side given how small thin the cuts are fiberglass seems like it will be tough to work into the area but I do trust the strength. I have all products needed on hand for either repair I'm just bot sure which is best and why I'm hoping you folks can shed some light.
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
37,818
Couple of layers of 1708 on the INSIDE and about 6" wide will do the trick.----Any pictures of these little mistakes?
 

MoldMoney

Cadet
Joined
Jul 20, 2024
Messages
7
Doing the inside is going to be tough because of where it's located, I will post pics here later this after noon when I get back to the boat.
 

MoldMoney

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Joined
Jul 20, 2024
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For the sake of learning why in the inside rather than the exterior? My first thought was to use a flap sanding disk and make a taper about 3 inches wide on the exterior fill with multiple layers of glass sand and gel coat while on the inside doing roughly the same maybe less since it's a tough working area and 6" is going to be tough to get.
 

matt167

Rear Admiral
Joined
Sep 27, 2012
Messages
4,149
You’ll have to have all the stringers out as well and have it as an empty tub to repair the boat so it’ll be easy to get to once your there
 

MoldMoney

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Joined
Jul 20, 2024
Messages
7
You’ll have to have all the stringers out as well and have it as an empty tub to repair the boat so it’ll be easy to get to once your there
The stringers are not in the way and stringers are not rotten floor was removed to gain access to fuel tank and to repair some soft spots.
 

matt167

Rear Admiral
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Sep 27, 2012
Messages
4,149
The stringers are not in the way and stringers are not rotten floor was removed to gain access to fuel tank and to repair some soft spots.
If the floor is rotten, it’s a mostly good chance the stringers are too. Especially on a Bayliner/Maxum. You would need to drill test holes to verify, not just look
 

MoldMoney

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Jul 20, 2024
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Floor is completely out and stringers are fully intact and look new there was only two small areas of rot on the flooring the size of a small diner plate. This is not a forever boat this is a 5-10 year boat until I upgrade.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
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Jul 23, 2011
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49,538
the last thing to rot after the transom and stringers is the floor.

I would be willing to bet that a test drill into the stringer results in finding wet & rotting wood inside them.
 

MoldMoney

Cadet
Joined
Jul 20, 2024
Messages
7
I did a drill test and found solid wood in all test spots I was surprised as well, transom is solid as with zero flex no hallow spots. Trust me I was shocked the stringers were solid but some how they are.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
27,840
You can repair it as you described in post #5. It is much harder than fixing from the inside, however, both will work.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
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Jul 23, 2011
Messages
49,538
I did a drill test and found solid wood in all test spots I was surprised as well, transom is solid as with zero flex no hallow spots. Trust me I was shocked the stringers were solid but some how they are.
buy a lottery ticket now
 
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