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    Pontoon Boat Chassis Question...

    Thanks for all the help. I removed the entire transom assembly, and it weighed 115lbs! Not reusing it, but this brought the chassis (logs and frame) weight in the ballpark for what it should be. I'm adding flotation the full width and length of the space between the logs with a simple plow up...
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    Pontoon Boat Chassis Question...

    Well, at 2psi I found lots of little leaks around the 72 bolts that are drilled through the flanges that hold the logs' lids to the u-shaped lower sections. The edges of the flanges are welded, but the bolt holes are common to the interior. Lowe shows a layer of sealing tape between the lid and...
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    Pontoon Boat Chassis Question...

    I'm gonna raise the pressure a little and see if I can find a crack, was concerned about raising it much. Its not a pressure vessel and 1 psi is 2264 lbs of force against the interior. Have you pressurized logs for leak checks before?
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    Pontoon Boat Chassis Question...

    Thanks Scott, I think I have a friend at a speed shop that has one. These U-shaped logs with flat tops have about 154 sq ft of .080" 5052 aluminum, that would put the bare log at 175#. I found a cut away of one of them, and based on the the info there's about 120 lbs of 2lb foam inside...
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    Pontoon Boat Chassis Question...

    Still working on weight... .080" 5052 aluminum ~1.139 lb/ft. One log has about 154 sq.ft. = 175.4 lbs.. This doesn't count all the brackets and the reinforcement rib in the front. Still adding stuff. Sure seems water logged.
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    Pontoon Boat Chassis Question...

    I was kinda worried about that. I'm guessing the 24' logs would be maybe 200# each. Will remove a few pieces and try to guess at the rest. I don't think the logs could have a vacuum pulled to remove water, the structure couldn't withstand that. I wonder if the logs were vented adequately with...
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    Pontoon Boat Chassis Question...

    I have a 1990 Lowe Sunbird 24' Pontoon that I'm restoring. I have everything off the chassis. I've been searching everywhere, and hope someone has some info or can make an educated quess to help me. This has the old style foam filled U-shaped pontoons. I think they used cut blocks, not the...
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