1988 Supra Mariah: Floor and Stringer Restoration and more...

I finally got all of the foam out and the portside stringers out. I'm still working on the measuring and cutting the portside main longitudinal stringer. I left in the starboard side for reference. Once I sure it up, I'll mirror cut out the remainder of the stringers and mirror over. I forgot the thickness of the floors. Were they 3/8?...1/2? Still no luck with the rudder. I've pushed it back up and even sanded the upper shaft where there was a possibility of "mushrooming" and sprayed a ton of WD40.

Attachment 15429

Attachment 15430

Floors are 1/2" Just started cutting mine tonight. They'll get one layer of 1.5 oz mat on the bottom, and two layers of 1708 on top. Don't be afraid to cut the entire lip of the floor off, it'll be easier to work with and set your floor as close to the side as possible. I kept mine for a while for reference, but then completely removed the remaining lip. Looks way cleaner and it will all be uniform when done. Marl it accordingly, however you prefer. You can still see where it was even once its all removed and sanded/ground flush, so no worries there. Boat looks good! You're making quick progress.

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Originally Posted by lmnelson86

Floors are 1/2" Just started putting mine tonight.

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Thanks man! Can't wait to see the update!

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Originally Posted by suprasaltareaud

I've just repaired a soft spot. Fortunately underneath is still dry with not much rot. Think I will be attacking full cap off repair in my winter (6 months). Will follow with great anticipation.

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I'm jealous. I wish I could get away with that.

Flips, you didn't happen to take a measurement of the placement of the two rectanglur holes cut in the floor where the cables and wire harness pass through, did you? I can't seem to find that dimension in my notes. I have pictures but want to be more accurate. I'm going to make a trip to measure my top deck this weekend, but thought you may have an answer.

How's your boat coming along? Im excited to see your progress, seems you've been moving quickly. I'm def Interested to see another restored Mariah!

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Originally Posted by lmnelson86

Flips, you didn't happen to take a measurement of the placement of the two rectanglur holes cut in the floor where the cables and wire harness pass through, did you? I can't seem to find that dimension in my notes. I have pictures but want to be more accurate. I'm going to make a trip to measure my top deck this weekend, but thought you may have an answer.

How's your boat coming along? Im excited to see your progress, seems you've been moving quickly. I'm def Interested to see another restored Mariah!

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I actually didn't take dimensions for that. I do know the width of it was just wide enough to have the the wire housing (pipe) to pass though. I just remember it was tight. The location on the floor is right where the built in cooler is and just inside of the longitudinal stringer. I will be working on it tomorrow so I'll see if there are any other references.


As far as progress on the boat, I have changed directions as far as material. Although I already bought the lumber, I decided to go with wood free stringers. I will be using a mix of 2" thick Nida Core, 3/4" divinycell, and various density foams blocks (I have access to scrap between 2lb and 30lb) for the bulkheads.

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Originally Posted by flipz96

I actually didn't take dimensions for that. I do know the width of it was just wide enough to have the the wire housing (pipe) to pass though. I just remember it was tight. The location on the floor is right where the built in cooler is and just inside of the longitudinal stringer. I will be working on it tomorrow so I'll see if there are any other references.


As far as progress on the boat, I have changed directions as far as material. Although I already bought the lumber, I decided to go with wood free stringers. I will be using a mix of 2" thick Nida Core, 3/4" divinycell, and various density foams blocks (I have access to scrap between 2lb and 30lb) for the bulkheads.

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I am very interested to see how that turns out! If I had access to those materials I would give them a try as well. Maybe on the next project. Yeah if you think of it, let me know on those dimensions. I have a bunch of pictures so I remember the size, just want to double check locations.

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Originally Posted by lmnelson86

I am very interested to see how that turns out! If I had access to those materials I would give them a try as well. Maybe on the next project. Yeah if you think of it, let me know on those dimensions. I have a bunch of pictures so I remember the size, just want to double check locations.

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From where the deck meets the hull at the bow, the center of the cooler splace is about 63".



Attachment 15456
Attachment 15457

Awesome man, thank you!

A recommendation, since I am fighting with this today: When you install your main center stringers, be sure to bolt the ski pylon back in with the bottom 2 bolts. Use the side attachment points of the pylon to clamp your stringers to while they cure to the hull. I measured twice or more, but my stringers are a little out of square in that area and I'll have to do some massaging with the torch to get the bracket squared up with the stringers. Other than that, the stringers on my boat are fine. I would just pay attention to the area where the pylon bolts up to save some hassle down the road when re-installing it.

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Originally Posted by lmnelson86

Awesome man, thank you!

A recommendation, since I am fighting with this today: When you install your main center stringers, be sure to bolt the ski pylon back in with the bottom 2 bolts. Use the side attachment points of the pylon to clamp your stringers to while they cure to the hull. I measured twice or more, but my stringers are a little out of square in that area and I'll have to do some massaging with the torch to get the bracket squared up with the stringers. Other than that, the stringers on my boat are fine. I would just pay attention to the area where the pylon bolts up to save some hassle down the road when re-installing it.

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When I bought my boat, the pylon was already removed. I think the only critical area is the motor well. Let me know if you run into anything else. Thanks man!