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If you're not registered, please consider doing so. It's easy - just click the "Register" link at the top
right corner of the page. Our forum needs members like you to contribute to the site in order to survive.
We are a community of boat lovers and Hydrostream enthusiasts here; we are happy to help anyone
who may need advice or guidance for their 'Stream; and we encourage members to offer their advice
and guidance to others as well. Thank you for visiting our forums, and please register.
We're better than Facebook.
Registering only takes a few minutes and you can do so by CLICKING HERE
If you are a member, don't forget to log in to take full advantage of the forum.
Puget Sound Viper
-
- The new guy
- Posts: 11
- Joined: Mar 15, 2015 3:06 pm
- Location: South Puget sound
- Been thanked: 2 times
Puget Sound Viper
Just purchased an 89 Viper. Drilled sample in core and found it wet as suspected on purchase. I on preparing for a complete recore this winter. After reading many recore threads here and on S & F one question still remains, what to do about flotation. Remove and let boat sink? Puget Sound can be hundreds of feet deep just off shore so probably no recovery. What is required to float a viper and motor? Is sealing off the bow section enough or do the side tanks need to be put back. Hopefully flotation will never be needed but...
Thanks
Bill
Thanks
Bill
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- Site Admin
- Posts: 4001
- Joined: Mar 25, 2009 7:31 pm
- Location: Nowthen, MN
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Re: Puget Sound Viper
About 99% of the people never put the floatation foam boxes back in. They are not needed to make your boat float unless it sinks, which hopefully will never ever happen. Best part about removing them, you can use the new space for skis or other junk. Plus, in a Viper, there is core under that foam so you have to take all the foam out to get all of the core out. A few members here are running 200hp motors on their Vipers and seeing 90+mph speeds and have zero floatation foam in their boats. Just personal preference if you want to put it back in or not.
-Kevin
Project Vulture | Project Vector | Project Vamp | Project Vixen
The Vulture Wish List | Project CobraJet
1977 HydroStream Vulture - Worlds longest ongoing project.
1982 Hydrostream Vector
1982 Hydrostream Vamp
1973 Hydrostream Vixen
1976 CobraJet Jet Boat - Outboard conversion project
1976 Pontoon - aka The Family Truckster
Project Vulture | Project Vector | Project Vamp | Project Vixen
The Vulture Wish List | Project CobraJet
1977 HydroStream Vulture - Worlds longest ongoing project.

1982 Hydrostream Vector
1982 Hydrostream Vamp
1973 Hydrostream Vixen
1976 CobraJet Jet Boat - Outboard conversion project
1976 Pontoon - aka The Family Truckster
-
- Hydrostream know it all
- Posts: 997
- Joined: Nov 20, 2009 11:35 pm
- Location: Pleasant Prairie, WI
- Been thanked: 2 times
Re: Puget Sound Viper
Welcome to the site. When you can, get some pictures up. Many of the guys here are happy to answer questions. Don't be afraid to ask. Usually there are more than one way to get things done, so don't be surprised if you get a couple different responses.
Bill
Bill
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- The new guy
- Posts: 11
- Joined: Mar 15, 2015 3:06 pm
- Location: South Puget sound
- Been thanked: 2 times
Re: Puget Sound Viper
Thanks,
Shop is cleared, motor is off and fogged, building aux filtration for anticipated fiberglass dust. Once hull is stripped I need roll over and build cradle. Once I sell my 63 Nova I should have ample cash for entire project. Hard to spend much time now as weather in the Puget Sound now is so nice. So small steps until the rain starts.
This will be my first complete restore but I have a fair amount of experiance with wood and glass boats and epoxy.
I am still undecided on whether or not to remove the deck or not, the rub rail in the stern is quit beat up and have not found a repl. yet.
Bill
Shop is cleared, motor is off and fogged, building aux filtration for anticipated fiberglass dust. Once hull is stripped I need roll over and build cradle. Once I sell my 63 Nova I should have ample cash for entire project. Hard to spend much time now as weather in the Puget Sound now is so nice. So small steps until the rain starts.
This will be my first complete restore but I have a fair amount of experiance with wood and glass boats and epoxy.
I am still undecided on whether or not to remove the deck or not, the rub rail in the stern is quit beat up and have not found a repl. yet.
Bill
-
- Hydrostream know it all
- Posts: 997
- Joined: Nov 20, 2009 11:35 pm
- Location: Pleasant Prairie, WI
- Been thanked: 2 times
Re: Puget Sound Viper
I replace the transom and never put the rub rail on the back when done. Also, I prefer the hassle of working on it without separating over getting it back together correctly when done. That's just me though. Bill
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- Hydrostream know it all
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Re: Puget Sound Viper
With the floor sealed up except for the drain in the back, Air will be trapped in case it capsizes. Now if you rip a hole in it, that chances things. I threw a dump truck inner tube
under the bow for the first several runs not knowing how it would do with a 2.5L 200.

under the bow for the first several runs not knowing how it would do with a 2.5L 200.

Ron Pratt
Okanogan, WA
Viper/ 2.5L 200 Merc (SOLD)
1991 "the last" Virage/ 15" 280
2003 9’ Mini Virage/ 15 hp Honda 4-stroke
1989 Voyager/ 300 Promax
1989 HST / 2.5L 200 Merc
http://www.prattcustoms.com
Okanogan, WA
Viper/ 2.5L 200 Merc (SOLD)
1991 "the last" Virage/ 15" 280
2003 9’ Mini Virage/ 15 hp Honda 4-stroke
1989 Voyager/ 300 Promax
1989 HST / 2.5L 200 Merc
http://www.prattcustoms.com
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- The new guy
- Posts: 11
- Joined: Mar 15, 2015 3:06 pm
- Location: South Puget sound
- Been thanked: 2 times
Re: Puget Sound Viper
Thanks,
Truck tube sounds very high tech. Viper is now on cradle and deck is off. I start on float boxes and floor tomorrow.
Bill
Truck tube sounds very high tech. Viper is now on cradle and deck is off. I start on float boxes and floor tomorrow.
Bill
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- The new guy
- Posts: 11
- Joined: Mar 15, 2015 3:06 pm
- Location: South Puget sound
- Been thanked: 2 times
Puget Sound Viper
What a chunk of work.
The transom and floor were 95 percent solid. The core was a different story. Well over half of the core was wet. The new transom and stringers are in. I am following the origional design except for the addition of transom knees and splashwell to transom reinforcement.
Did the origional designers use the floatation boxes for hull structure? If so, what do you do to substitute? I could run core all the way up the sides. There is already a strip of thin foam core, 8" x 8 feet along the upper edge of the hull sides.
Any ideas?
[ Post made via iPad ]
The transom and floor were 95 percent solid. The core was a different story. Well over half of the core was wet. The new transom and stringers are in. I am following the origional design except for the addition of transom knees and splashwell to transom reinforcement.
Did the origional designers use the floatation boxes for hull structure? If so, what do you do to substitute? I could run core all the way up the sides. There is already a strip of thin foam core, 8" x 8 feet along the upper edge of the hull sides.
Any ideas?
[ Post made via iPad ]

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- Hydrostream know it all
- Posts: 527
- Joined: Aug 08, 2011 10:22 pm
- Location: Peterborough Ontario
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Puget Sound Viper
Transom and stringers are in? What about core? Most rebuilds I've experienced have the stringers on the core....
[ Post made via Android ]
[ Post made via Android ]

1988 Canadian Edition Vision Sold
1990 Hydrostream Virage Stage 3 Turbo
1990 Hydrostream Virage Stage 3 Turbo
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- The new guy
- Posts: 11
- Joined: Mar 15, 2015 3:06 pm
- Location: South Puget sound
- Been thanked: 2 times
Puget Sound Viper
I would agree that stringers over core is common. The glass box stringer on this hull did not have core under it. I am not wanting to change the original build, only rebuild and hopefully
Improve. Any thoughts on the float box removal?
Thanks
[ Post made via iPad ]
Improve. Any thoughts on the float box removal?
Thanks
[ Post made via iPad ]

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