Test, test……is this posting? Looks like a post or 2 did not post………guess technical difficulty!ok, I’ll try and pick things up. Their dream motorhome is ready……ready to install a new floor. And now we know how to make the whole body structure better…………
The wood floor panels are stressed holding the body onboard from the body rail structure……we’re gonna fix that……stay tuned…every coach needs this.
OK…… technology again has me by the butt, I have been describing a recent epiphany we have had concerning the floor structure of our coach…..looks like some of it got lost so if you saw it sorry but I need to back up and put this up again……..every coach has this designed into the structure…..so here we go:
It’s known that the early coaches seem to have a more spongy floor…ant it’s true. The reason has always need explained it was because the late model floors had a composite wood/foam/aluminum composite floor construction. While it’s probably true the composite flor has more tinsel strength the real issue is the loading of the aluminum crossmembers of the body. Look at this pic. This is a 73 coach, the wood from the floor removed the aluminum Crossmember of the body are sitting on the steel “C” channel ladder frame rails going front to back..
Look closely at the first Crossmember. It is bowed up at the center having the weight of the body outboard at the edge of the body, without the strength of the wood floor panels the weight is too much for the crossmemberss so they bow from the lateral stress.
Ok, with the wood secured it has more strength but wait……. We do not want that lateral stress….the body needs to see the frame and transfer its load straight down from the siderail! This would unload the floor crossmemberss allowing them to throw its strength to supporting the floor taking the weight of the body off of them and onto the lower rails of the body where it occures.
The later floors did a better job but why introduce that stress at all? We will be redesigning the frame support system by adding frame support “gussetts” out to support the body at its lower rail.
If this proves out it means the mystery of why the original air cleaner hits the engine cover….why fuel hoses on top of the fuel tanks get crushed, certainly why the early floors feel spongy and will help every coach transmitt less road vibration, help with body roll, give use more clearance on tires and basically form up the body structure. Lemme post that pic again.if this holds true it means the GMC may have been designed by GM for a 14 year life span as they stated in their videos……here we are way past that finding issues that only come in time……. Intake manifold crack from excessive heat cycles….. Doors having to be received from the squat the the body…… Air cleaners hitting the engine cover…….. Clearance issues for air, brake, propane and fuel tank lines between the frame and body……dang what else? Body roll….putting lateral G force will cause the floor to bow and receed………Body seams may not pop and leak as bad!!!! This may be the Holy Grale to many coach issues! Stay tuned on the process and our solution to this issue. I want to build this as a retrofit “kit” so we all can make our coaches perform better………stay tuned!
So the top pic today is of Chris and Jayne inspecting progress on their huge project……it’s projects like this we learn many things from…….thanks guys for letting us play. The coach has no name as yet, with permission I want to give home the name “Steve Austin” for now…..we can rebuild Steve to be better, stronger, faster……..and I don’t think it will cost anywhere 6 million dollars!
See ya tomorrow. You tech heads, I would be interested on your take on our idea here. My resident engineer Nelson W. has weighed in to a positive position……how to do it is under advisement……like I said, stay tuned