Tracker PT 175-Adding support-angled aluminum?

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pt175ept
Posts: 3
Joined: 17 Sep 2019, 18:19

Tracker PT 175-Adding support-angled aluminum?

Post by pt175ept » 02 Nov 2019, 23:16

Hello tinboats!

hoping for some help on my 04 PT 175. Currently recarpeting the boat, and want to add some extra support in places I think its needed.

I had my drivers side seat collapse/break away and was real loose. It still held but it was kinda like a soft spot. I ended up adding some screws and it did help....but it was not a long term support. Now that I took off the carpet, I can see the rivets holding the metal in place had busted. Plan is to just rerivet and prolly drill an extra rivet or 2 in. Im a big guy (250lb) so need all the support I can get.

Im wondering...can I add in some angled aluminum, or something under the seat to give extra support beside what is there?

Heres the whole seat area.
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Here you can see the busted rivets and where I jerry rigged some screws a few months back
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This is the drivers side with the busted rivets. Seat goes over that...and I dont really use that storage space so dont mind blocking it off with support
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Here is the same shot where I wonder if there is some sort of cross brace/support to help disperse the load of me sitting there. I fish rough water....so there will be some slamming due to bad water so I wanna make sure no rivets ever bust or anything like that since I had to remove the carpet to really see and fix the problem.
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ALSO....The center of my boat has no foam and is just open space. The deck/floor is only 1/2 (not 3/4 like casting deck) inch and I just dont like the idea of 1/2 inch plywood and that much open space. Im not jumping in the middle of my boat trying to break through the wood....but I can see something crazy happening or something where cracking/breaking it is possible. Removing it was a pain so if I ever have to do it again ill prolly sell it lol

Bad pic because of the console, but you can see where the framework would be underneath.
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Can I add supports here in the red?
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CedarRiverScooter
Posts: 947
Joined: 13 Nov 2014, 08:01

Tracker PT 175-Adding support-angled aluminum?

Post by CedarRiverScooter » 03 Nov 2019, 09:32

Added support, especially if rot-proof, is usually a benefit.

If you can make some diagonal braces that will gusset your added braces to the vertical walls, you will get more bang for the buck. Think of a truss design. It would be best to have them right where the seat screws down.

An easy fabrication to make a knee brace is just to notch the ends of alum angle & then bend the leftover tab 45 degrees.

If you really want it super strong, overlap the notched ends with a cutoff pcs so both flanges are tied together..

Always keep in mind how strong the material you are riveting to is, & whether you are creating a high stress point that will crack when boat flexes.

Whatever you don't drill holes thru the hull!

pt175ept
Posts: 3
Joined: 17 Sep 2019, 18:19

Tracker PT 175-Adding support-angled aluminum?

Post by pt175ept » 03 Nov 2019, 21:21

that sounds above my level...but that "knee brace" sounds very doable. When you say bend in the tab 45 degrees...so the angle aluminum will be more like a V than a right/90 degree angle?

What size angle aluminum would you recommend? Do you think I can make a notch with something like this...in a heavy duty drill though?


or whats the easiest way to notch the aluminum? I dont really have the tools for this...but can always hit up harbor freight if I have too! lol

thanks

CedarRiverScooter
Posts: 947
Joined: 13 Nov 2014, 08:01

Tracker PT 175-Adding support-angled aluminum?

Post by CedarRiverScooter » 03 Nov 2019, 23:10

What I have done is to cut a square out 1 side of the angle at the end, using a hacksaw.

If you have a vise that makes cutting much easier, otherwise maybe use a c-clamp to a bench top to hold it. Then you have a tab left over that can be easily bent. You can bend it with a crescent wrench, again use a vice or clamp to hold the main part. Bend tab to 45 degree angle. Do this to both ends.

Then drill holes for rivets, at least 2 at each end & rivet in place. It will be surprisingly strong after it is in place.

I would take a photo but my boat is in storage.

1-1/2 x 1/8 angle is plenty strong, could even use 1-1/4. 1/16 inch wall is too thin in my opinion .

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LDUBS
Posts: 2566
Joined: 14 Aug 2016, 22:25
Location: Clayton California

Tracker PT 175-Adding support-angled aluminum?

Post by LDUBS » 04 Nov 2019, 12:43

To the extent you can use a backer under the seat connections. Beefier the better.
Have Rod - Will Fish

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