LY Motor home Passenger Side Leak

[latenite23]

Has anyone had to repair a leak from the body trim about the passenger window?

I removed the rotted wood. Going to cut another piece, did not want to put wood back but that is what the body trim screws to.

Any help appreciated.

[92landyacht]

Very common area for leaks. My 92 LY had leaks in the same area. The primary source is the molding that connects the front end cap to the sides. I removed mine and used thick butyl rubber tape window gasket material under the molding and then reinstalled the molding. I than sealed the molding edges with flashing sealant. Rebuilding the inside is pretty basic. Wood will work just fine and will remain in good condition as long as moisture is allowed to evaporate and no more water leaks occur.


Good luck with your project. Keep us updated with pics. Love pics of repairs.

[Captain Paul]

I had a small amount of delamination from water getting through on each of the four corners of my RV. I ordered a delamination kit which worked really well and then made sure everything was fully sealed. I would also recommend putting some sort of rain gutter extender on after you finish your repair. See attached photos

[92landyacht]

Curious as to how the repair kit works. Do you have to drill holes into the delaminated area to get the resin behind the panels? If so, did you come in from the outside or inside?

[Captain Paul]

No you do not need to drill holes into the side panel. When you remove the trim along the top edge you should see where the delamination has occurred. You’ll be able to insert the resin from the top and it will flow down into the panel. The resin is very thin and flows quite well. There are several videos on YouTube that will show you how to do this repair.

[Mike1997]

Good photos and glad you found the damage before it spread to the whole wall up to the exit door. I had water coming in from a different source in the same area.

I had a water leak that occurred only in heavy downpours or while driving in rain. Problem turned out to be the CB antenna base directly over the passenger seat. Base was plastic and cracked, connection rusted. Removed whole base and it leaves a hole about size of a half dollar. Replaced base and antenna then sealed and no problems since.

Also, about once per year I will have the gel-coat applied which brings out the original finish in a fantastic way. During that process everything on roof is resealed and replaced if needed. Also the gutter spouts recommended are a huge help in keeping water from running down the side of the motorhome.