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Old 05-07-2018, 08:30 PM   #1
Mini-Skoolie
 
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Metal Flooring

Hello all! We recently acquired a 2000 Chevy Bluebird bus with a CAT 3126 engine. Demo is underway, seats out, paneling and insulation out (death of a thousand rivets), and most of the floor is out. My question is - has anyone removed the metal flooring in its entirety and riveted new sheet metal to the underside of the frame/rails? In theory we could then put the subflooring in without loosing near as much headroom. Thoughts????
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Old 05-08-2018, 09:08 AM   #2
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Sounds like a lot of work for no benefit to me. How do you figure that taking up the sheet metal and replacing it with sheet metal is going to save you headroom?

FWIW, this conversation should be moved to "Conversion General Discussions."
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Old 05-08-2018, 09:26 AM   #3
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Replacing it to the underside of the frame/rails would give you roughly 2-3 extra inches to work with.
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Old 05-08-2018, 10:44 AM   #4
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Originally Posted by BusWhackers View Post
Replacing it to the underside of the frame/rails would give you roughly 2-3 extra inches to work with.
So your plan would involve taking up the sheet metal, installing new metal from below and insulating the depth and cavity between the frame rails and then installing the subfloor over that? Just trying to be sure I'm understanding. Attached is a crude drawing of what I THINK you're describing versus what the SOP is.
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File Type: jpg Insulation.JPG (26.9 KB, 21 views)
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Old 05-08-2018, 11:05 AM   #5
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Exactly! I haven't been able to find much (if any) information on this method. Wondering if its feasible/worth it. Not sure if any moving parts would be in the way, if the exhaust would cause too much heat transfer, or if we would even have enough room to work. Let alone what it would take to remove the metal already in place, not exactly sure how its attached (if its welded, ugh...maybe more effort than its worth). Also, someone told me I need to move this thread, not sure how to do that.
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Old 05-08-2018, 11:15 AM   #6
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It would be easier to lift the body from the frame, spray foam the underside then add a coat of bedliner to seal it.

That's pretty much what the manufacturers did when they built bookmobiles, blood-bank buses, etc.
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Old 05-08-2018, 11:40 AM   #7
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Originally Posted by BusWhackers View Post
Exactly! I haven't been able to find much (if any) information on this method. Wondering if its feasible/worth it. Not sure if any moving parts would be in the way, if the exhaust would cause too much heat transfer, or if we would even have enough room to work. Let alone what it would take to remove the metal already in place, not exactly sure how its attached (if its welded, ugh...maybe more effort than its worth). Also, someone told me I need to move this thread, not sure how to do that.
I'm certainly no expert, but I think this would be way more effort than it's worth. The steel skin to the frame rails would conduct quite a bit of thermal energy and it would go right into the screws/plywood subflooring, so you'd want a bridge between the outer skin and the frame rails or between the subfloor and the rails, so that'd be height lost, too. On my bus we also have electrical and coolant lines and such running between the rails that would end up having to be relocated.
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Old 05-08-2018, 11:47 AM   #8
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I don't think you can move a thread. I would guess that this is an admin-only sort of thing. OTOH, we're in the right place to get the admin's attention!

My comment was meant in more of an "FYI - next time you should do it like this" fashion.
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Old 05-08-2018, 12:14 PM   #9
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Thank you so much to everyone! I am very impressed by your quick responses and thoughtful analysis of our theoretical endeavor. We are trying to devise creative ways to create more head room without doing a lift which would ultimately degrade the integrity of the frame.
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Old 05-08-2018, 12:16 PM   #10
Mini-Skoolie
 
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Thank you for the heads up, I will take more care in future postings!
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