Coach Assembly (or what is holding it all together)

[InPursuit]

Anyone who has been down to the bones please chime in...

Based on my work with wet spot repair and observation I can see that there is a steel angle iron frame which the OSB floor is screwed down to as well as the sidewall (alum tube framing)...

The "firewall" has steel tubing attached to it at each end.

On the drivers side (exposed) is a modest aluminum angle attached to that steel tube and to the side wall (with sheet metal screws). This side seems solid and good.

The issue I'm having is excessive up/down movement at the juncture of the "firewall" and the sidewall at the front cap corner on the passenger side (where I have still not replaced the insulation or interior veneer... just as an fyi).

I've tried tying the sidewall to the firewall with various things (simpson plates, angle and screws) but nothing holds for more than a few hundred miles.

Help!

[tncruiser]

some pix might help as all coach are differant
brianj

[InPursuit]

Quote:

Originally Posted by tncruiser some pix might help as all coach are differant brianj

Fair enough.

[RJay]

Can you weld a piece of angle iron the length of that corner?

[InPursuit]

Quote:

Originally Posted by RJay Can you weld a piece of angle iron the length of that corner?

Sure could.
There is really no practical limit to what I *could* do.

The question I'm asking is what is usual and customary or at least common for this joint (supporting the firewall relative to the front cap and side wall) when the coach builders do their assembly.

But it wasn't welded before...
so my concerns are about why it is doing this now and whether I should be looking deeper for a cause rather than just patching over the symptom.

["007"]

I'd use a larger size angle iron more screws and see if you can weld or bolt to the chassis frame to make it more stronger.
I see a curtain is this inside under dash?
The other side of this corner should be to frame if possible and bolted thru to this side angle iron.