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97' Sylvan SE Center Toon Addition

Printed From: Pontoon Forum
Category: Show Off Your Pontoon Boat
Forum Name: Pontoon Boat Rebuild Projects
Forum Description: Members/Customers who are rebuilding their Pontoon Boats
URL: http://www.pontoonboatforum.com/forum_posts.asp?TID=8842
Printed Date: 10/22/2018 at 1:09am
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com


Topic: 97' Sylvan SE Center Toon Addition
Posted By: Scott011422
Subject: 97' Sylvan SE Center Toon Addition
Date Posted: 04/23/2018 at 5:55pm
Hey all

My father and I purchased a 1997 24ft long Sylvan pontoon two years ago. It gets most of it use up on Lake Geneva in Wisconsin which can be quite wavy, especially on the weekends. So this year we decided we were going to add a third pontoon for more flotation and a better ride. I figured I would post everything up in case it could help someone with their conversion in the future.

This is the best photo I have of the boat. Since then, We have redone the seats, electrical, outboard, lighting, added a staircase to the trailer and started revamping the playpen skin.

https://flic.kr/p/J2V7y8" rel="nofollow"> https://flic.kr/p/J2V7y8" rel="nofollow - IMAG0021 by https://www.flickr.com/photos/69392819@N07/" rel="nofollow - scott011422 , on Flickr

And a mockup:
https://flic.kr/p/267NwmJ" rel="nofollow"> https://flic.kr/p/267NwmJ" rel="nofollow - Untitled by https://www.flickr.com/photos/69392819@N07/" rel="nofollow - scott011422 , on Flickr



Had the Donor toon delivered from Great Lakes Skipper. Its a Bemmington 25.5ft oval toon.

https://flic.kr/p/25iHyko" rel="nofollow"> https://flic.kr/p/25iHyko" rel="nofollow - Untitled by https://www.flickr.com/photos/69392819@N07/" rel="nofollow - scott011422 , on Flickr

https://flic.kr/p/FH943M" rel="nofollow"> https://flic.kr/p/FH943M" rel="nofollow - Untitled by https://www.flickr.com/photos/69392819@N07/" rel="nofollow - scott011422 , on Flickr

This toon is off a canceled special order. You can order any 2 toon boat with optional 32" oval logs. However, being its for a 2 toon boat, no integrated transom. So I purchased myself a TIG welder and am teaching myself to TIG Weld. Going to make my own transom. Since I'll be cutting off the back of the toon, its a good time to add a larger fuel tank too. We will be removing the factory 26 gallon tank off the deck which then gives us more storage space, and mounting a 49 gallon in the toon. To get the most out of this tool i am designing the transom to be 100% sealed for maximum flotation. All said and done, this should add roughly 1400 pounds of flotation on a normal outing with a maximum of 4000lbs when fully loaded. Here are my current designs:

https://flic.kr/p/258LgeA" rel="nofollow"> https://flic.kr/p/258LgeA" rel="nofollow - Untitled by https://www.flickr.com/photos/69392819@N07/" rel="nofollow - scott011422 , on Flickr

https://flic.kr/p/26a4S1j" rel="nofollow"> https://flic.kr/p/26a4S1j" rel="nofollow - Untitled by https://www.flickr.com/photos/69392819@N07/" rel="nofollow - scott011422 , on Flickr

https://flic.kr/p/GyF3tV" rel="nofollow"> https://flic.kr/p/GyF3tV" rel="nofollow - Untitled by https://www.flickr.com/photos/69392819@N07/" rel="nofollow - scott011422 , on Flickr

I will be using 3/16 Aluminum plate for the outer skin and 2"x 4" 1/4 wall tubing backing that up. I'll also have 3 1/4 thick plates that will be welded into the tubing and outer skin that will be welded onto the skin to help take up the stress from the outboard thrust.



Replies:
Posted By: curtiscapk
Date Posted: 04/23/2018 at 10:05pm
can't wait to see this! Great stuff!

-------------
Craig n Paula
http://www.pontoonboatforum.com/forum_posts.asp?TID=7781&title=the-floater-rebuild" rel="nofollow - THE FLOATER Rebuild
94 Party Barge 24' 115 merc
22mph
OP KS
Truman Lake


Posted By: gerard143
Date Posted: 05/13/2018 at 4:56am
ya excited to see where this goes.... keep us posted!


Posted By: Bansil
Date Posted: 05/14/2018 at 8:56pm
I guess I am #3 to this partyWink


Posted By: Scott011422
Date Posted: 05/16/2018 at 12:48pm
Enough of the Fuel tank mount is designed, material ordered. Going to weld a frame to the bottom of the tube. There will be a lip sticking down on the far side of the tank mount that will slide under the tank frame so I can slide the mount onto the frame and then either bolt or weld the aft section of the mount to the frame.

https://flic.kr/p/25QPco8" rel="nofollow"> https://flic.kr/p/25QPco8" rel="nofollow - Untitled by https://www.flickr.com/photos/69392819@N07/" rel="nofollow - scott011422 , on Flickr



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