Delamination Question

Topic: Delamination Question (Read 2186 times) previous topic - next topic

Re: Delamination Question

Reply #25 – April 04, 2020, 05:23:00 pm

This looks a little suspicious tho

Re: Delamination Question

Reply #26 – April 04, 2020, 05:26:29 pm

Quote from: Kennyb – April 04, 2020, 05:23:00 pm

This looks a little suspicious tho

oh oh......

Re: Delamination Question

Reply #27 – April 04, 2020, 05:27:17 pm

Something "ain't rite". You should be seeing bolt HEADS with the bolt going forward through that 1/4" angle. Someone has been in there doing work-- probably not good work.

And, definitely the next picture of the bottom shows what is likely major issues.

You will need to pull that FG down to determine the extent of the damage.

You didn't see that before buying it??

Re: Delamination Question

Reply #28 – April 04, 2020, 05:31:02 pm

What do you mean forward?

Re: Delamination Question

Reply #29 – April 04, 2020, 05:33:21 pm

I mean in the picture immediately above you should see bolt HEADS going through the 1/4" angle. They self-tap into the two walls of the box beam forward (inside that white FG sandwich formed by the under side of the coach and the floor of the basement (wet bay section in this case).

Re: Delamination Question

Reply #30 – April 04, 2020, 05:44:09 pm

What you are describing is not a part of nor does it look like it ever was a part of my coach. I have a 1989 Grand Villa Private Coach Cummins/Allison.

Re: Delamination Question

Reply #31 – April 04, 2020, 05:47:07 pm

When I got underneath the floor guard (yeah...just figured out what FG was) I knocked on it all over and other than a loose side and some flake rust underneath it it was solid and the piece covering it just has some soot between the panels.

Re: Delamination Question

Reply #32 – April 04, 2020, 05:49:34 pm

Is this a U280/U300 or ORED?

Re: Delamination Question

Reply #33 – April 04, 2020, 05:56:11 pm

Does this answer that question?

Re: Delamination Question

Reply #34 – April 04, 2020, 06:08:37 pm

4000 Series

Re: Delamination Question

Reply #35 – April 04, 2020, 06:26:33 pm

Assume the info on the owners manual matches what is on the plaque outboard of the driver's area.

Re: Delamination Question

Reply #36 – April 04, 2020, 07:08:17 pm

The numbers indicate a unihome not an ORED. Plus the frame is a unihome.

Re: Delamination Question

Reply #37 – April 04, 2020, 07:22:47 pm

The outboard air bag in the picture in post #18 confirms it is a Foretravel "chassis". Everything we have been posting is correct/accurate.

Re: Delamination Question

Reply #38 – April 04, 2020, 07:48:36 pm

Here's the plaque. U300. I guess I will need to have more info. I think if what you are saying is true I would see a hole where that bolt you are talking about is supposed to go. It seems strange to me that someone would go through all the trouble of replacing that whole beam and weld the angle brackets...I have a lot of service paperwork I'll look through but I know the person I got it from and this was his baby until 4 months ago when he bought a new one.

Re: Delamination Question

Reply #39 – April 04, 2020, 07:49:07 pm

Oops

Re: Delamination Question

Reply #40 – April 04, 2020, 08:06:12 pm

Wet bay

Re: Delamination Question

Reply #41 – April 04, 2020, 08:15:26 pm

Here is the other side.

Re: Delamination Question

Reply #42 – April 04, 2020, 08:23:21 pm

The oem charger appears to still be in the coach. Boiled the batteries dry. 31 year old technology needs updating

Re: Delamination Question

Reply #43 – April 04, 2020, 08:29:19 pm

Are you talking about the Power Guard? Do you have a recommendation? I think the inverter is also original.

Re: Delamination Question

Reply #44 – April 04, 2020, 10:54:45 pm

Don't know your coach or your situation. But looking at your underside photos looks to me like you do have a issue there. As Brett has said you should see bolts heads coming out from the bottom. I don't see them there looks like somebody glassed over them. also from one of your pictures looks like there's a bulge in the middle. That shouldn't be there I don't think. Think we should stay on topic on this one not going off with battery chargers etc. His post is about the bulkhead issue and that's what we should stay on topic for.
Remember it's over 30 years old so there's going to be issues. You said that your project now you have one. Join the club we all do. With that said you're in the right place to get the help that you need. If in fact you do have a bulkhead issue you'll find plenty of help here to help you get it done. There are both recent and remote threads on this.
Good luck
Bob

Re: Delamination Question

Reply #45 – April 04, 2020, 11:18:48 pm

Bolt heads from the bottom of what exactly. And what do you mean 'glassed it over'? He said they should be on the end of the 1/4 inch angle...I dont know what that means...Im not a mechanic.

Re: Delamination Question

Reply #46 – April 05, 2020, 12:45:27 am

Another way to tell what may be amiss is to take a roll up 100 foot tape and measure from a front suspension point on each side back to the big angle iron on each side. If the distance is different by an inch or even a little less, that can easily be the reason for the "delamination."

Unfortunately, I think you are in for a structure repair and a few feet of the tubing may have to be replaced. This can be DIY as several members have done. Just requires some space and a welder, etc. See old posts as mentioned earlier.

Pierce

Re: Delamination Question

Reply #47 – April 05, 2020, 08:46:10 am

Quote from: Kennyb – April 04, 2020, 04:18:56 pm

2

Go back to "REPLY 19"

See the bolt heads. That is how it should look all the way across that 1/4" angle on both front and rear bulkhead. The bolts are special grade 8 self tapping bolts by Rolock.

The 1/4" angle is overdrilled. The bolts tap into the box beam just toward the center of the coach. They are what hold the two ends of the coach to the center structure.

You (or someone else) will be removing the fiberglass bottom of the coach-- looks like it is already loose. You will then examine the box beam structure and replace bad metal. Not cheap, but not major either. Lots of good pictures of what the structure looks like.

Here is one of many, many excellent posts on this on a 1991 U300: Bulkhead Repair (Partial Floor Replacement)

Re: Delamination Question

Reply #48 – April 05, 2020, 10:21:33 am

This is great info. I'm starting to understand after reading other posts.

Where do I look for the separation specifically. I'm not seeing any gaps from underneath in the back. And if there is can I just put steel tubing next to the bad sections and drill new holes or do I have to drop the whole box and make a new frame?

Re: Delamination Question

Reply #49 – April 05, 2020, 10:25:59 am

I am in the process of moving into this RV full time. I'm a complete novice but figured when I bought the rig for as cheap as I did there would be some issues. I saw the delamination but since it was only under the windows I thought the window seals just needed replacement and that was indeed true. I'm wondering if I can wait until June to do this repair because I will be in MI and have access to a pole barn (live in FL) but now I'm wondering if it's too dangerous to drive?

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