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Old 08-31-2017, 02:10 PM
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kjohnson kjohnson is offline
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Honeycomb floor

I know the 94 Prostar had a aluminum honeycomb floor. Does anyone know if the 93 models have it?
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Last edited by kjohnson; 09-05-2017 at 07:57 AM.
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Old 08-31-2017, 03:05 PM
Lottawatta Lottawatta is offline
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Yes, it should. My 91 has it.
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Old 08-31-2017, 06:08 PM
88 PS190 88 PS190 is offline
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Yup - mine is replaced with starboard in the rear - although with what that sucker weighs I'm going to put it on the bench over winter put a sheet of peg board on it - center punch a pattern and go to work nascar drilling it to save some weight.

There is a thread on here where someone packed epoxy putty into all of the surrounding cells - that's on the to do list also but requires pulling the pylon - from their thread it solves the issues which are mostly the weak edges.
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Old 09-05-2017, 08:00 AM
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kjohnson kjohnson is offline
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I don't like it. I have seen too many where the hinges for the engine cover bend it or the hinges come loose. I guess it could be replaced with a piece of marine grade plywood.
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Old 09-05-2017, 09:27 AM
Jorski Jorski is offline
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My '93 has it and it's trashed.
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  #6  
Old 09-05-2017, 09:33 AM
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east tx skier east tx skier is offline
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Quote:
Originally Posted by kjohnson View Post
I don't like it. I have seen too many where the hinges for the engine cover bend it or the hinges come loose. I guess it could be replaced with a piece of marine grade plywood.
The problem with the hinges was not so much the honeycomb aluminum material itself, but rather the fact that whatever washers MC may have used with the bolts holding the hinges to the floor were too small to adequately spread the force applied to those bolts by opening/closing the motorbox. A metal plate or even a piece of treated wood is adequate to spread the forces applied around enough so the bolts don't pull through the aluminum

As far as the edges go, the epoxy putty solution sounds pretty interesting.
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Old 09-05-2017, 10:46 AM
88 PS190 88 PS190 is offline
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you can easily fix pulled out hinges, get a sheet of 1/8" aluminum from the hardware, cut it into two epoxy to the bottom of the deck sheet, go to the top and use a pick to restore the floor as flat as possible, using a mixing tip or a large plunger type syringe fill the holes let harden and then redrill and bolt through with a washer on the back and your floor won't pull through.
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Old 09-05-2017, 09:35 PM
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Double D Double D is offline
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My '93 has it and it's trashed.
My 94 is getting spongy and the screws are coming lose. Need to replace it this winter.
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Old 09-05-2017, 09:40 PM
Mr. Acoustics Mr. Acoustics is online now
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I used 1/2" starboard with some aluminum bolted to the bottom for strength on my 93.

You can see it in my resto thread here: https://www.mastercraft.com/teamtalk...t=77757&page=2
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Old 09-06-2017, 08:28 AM
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kjohnson kjohnson is offline
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Honeycomb

Quote:
Originally Posted by east tx skier View Post
The problem with the hinges was not so much the honeycomb aluminum material itself, but rather the fact that whatever washers MC may have used with the bolts holding the hinges to the floor were too small to adequately spread the force applied to those bolts by opening/closing the motorbox. A metal plate or even a piece of treated wood is adequate to spread the forces applied around enough so the bolts don't pull through the aluminum

As far as the edges go, the epoxy putty solution sounds pretty interesting.
I fixed a friend of mine by cutting some metal backing plates for the hinge bolts to go through. I just don't understand why the messed a good thing up (fiberglass) to use the aluminum. It saves some weight, but not much and I guess it's cheaper.
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