Is this the area talked about for the bulkhead issue?
Yes.
Start by reading this thread: Bulkhead Repair-- A Comprehensive Look (http://www.foreforums.com/index.php?topic=8645.0)
Here is my recent repair on my 91U300
My basement rebuild (https://www.foreforums.com/index.php?topic=37910.0)
Not sure why my pic didn't display. Anyway, I have read extensively on the bulkhead issue starting with the article recommended from Brett. As a prospective buyer I wanted to ensure I was evaluating the exact location of the bulkhead. I understand what's going on with the bulkheads however haven't physically been under a Unihome inspecting the bulkheads hands-on myself; only photo's. Haven't found one within a reasonable distance to me (interested in the Grand Villa style late 80's to early 90's). Been on this fantastic forum for several months learning all I can. I also understand the bulkhead issue can be overthought as some have said however as you can clearly see by Stumps repair and others, the range of damage can be huge to say the least. So really anyone in the market such as myself needs to do their homework and get thoroughly familiar with this issue which in my opinion is not minor due to the monocoque design. In my opinion it should be a manufacturer recall or service bulletin at the very least. Is there a safe amount of bulkhead damage &/or bolts that break upon torque inspection that can be safely driven? Where's the line drawn that makes the coach non roadworthy as far as bulkhead corrosion damage?
Without X-ray vision, the exact extend of damage is often difficult to discern.
Yes, check the the bolts are not broken (torque wrench).
Yes, look for "rust jacking" where the box beams have pushed down the white fiberglass underbody.
Yes, look closely at places water can get into the structure-- the drop down door in the wet bay for example.
Yes, look at general condition of chassis rust-- if driven on salted roads and not washed off.............
(https://share.icloud.com/photos/0oG6y6QSFD7pMmKxVdLEh9wPg)
What Brett said: Here's what I found in ours. I skated on damage and only discovered the leak (kitchen) when looking in the fuel/propane compartment, a long ways from where the leak was! I now pull all the 'stuff' from both the kitchen and bath areas every once in a while (especially after a trip down 'blue highways') and check it out. This leak was barely noticed and only by pulling the drawers out did I see (gasp!) It had been going on for quite some time, but no structural damage! b^.^d
The leak at the water heater (Mike's picture immediately above) is on LEVEL ABOVE the basement structure. The leak is onto the floor of the interior of the motorhome. The basement is below that.