Over Cap seam 2018 Minnie Winnie 22M

[Lunatic1]

What do you call the (seam, joint, seal?) that is visible through the windshield on the underside of the over the cab portion of the RV? Ours has a gap that is wider in the middle than on the ends. As far as we can tell no water is entering, but it doesn't look right.

[Eagle5]

Greetings Lunatic1,
This is the first I have heard of this problem. While the joint has no name of which I am aware, the sealant used upon it is found through these links:
https://www.winnebago.com/owners/own...s-and-diagrams
and then specifically here:
https://www.winnebago.com/Files/File.../000210036.pdf
The above file is for the 22R, because the 22M sealant image ghosts-out the bunk nose cap.
Here is the 22M's sealant image:
https://www.winnebago.com/Files/File.../000035334.pdf
The sealant used on the nose cap is:

Sealant C = 185987-03-CHT
or
Sealant E = 094401-04-000

Because two different sealants are specified, I would go to a dealership and ask them if one would be better in the overhead application, should it be necessary for you to re-seal the area. I would also ask them if they have seen this issue before.
Welcome to the forum.
Eagle5

[Lunatic1]

Thank you very much, Eagle5!

[Jujubeadz]

I have a similar issue, but could not find water intrusion. Typical water area around marker lights etc are good. And the area feels solid. I re-sealed the gap and pushed the sealant into the gapped area.
2019 31k

[Lunatic1]

Thanks for replying - What type of sealant did you use?

[Motts461]

I have a 2019 Minnie Winnie 31G with the same issue. We purchased it in March of 2018 and I noticed the gap in 2019. After removing the original sealant and trim piece I found a couple broken screws. I repaired the screws and resealed with Manus-Bond 75-AM. Within a year the joint opened back up. I haven't done anything else to it since. I have an appointment at the end of July at the factory and that is one of the things I am going to have them look at.

[wahoonc]

I don't know specifically about the Winnebago products, however, most Class Cs have a foam seal or even two that go between the body of the camper and the remaining portion of the cutaway van. The cap is typically held in place by a screw run through from both sides. Not a particularly good connection in my opinion. In the ones I have rebuilt over the years, we put bolts in place of the screws. Some manufacturers will put a sealant at the outside edge others won't.

Aaron