Seneca cap interior failures

[allanlr]

Pictures of repairs. Hopefully not duplicates.
2018 HJ before and after pics. Drivers side no screws were broken. Passenger side all of them were broken. Replaced the 4 broken with 10 new and repeated the same sealing and insulating process. Very quiet now without any squeaks or rattles!

[svoshop]

Thanks for sharing. I got my weather strip in today and the 3M sealer that RustyNuts recommended. So I will get mine knocked out this week I hope. It's my pre-work hobby, so it may take me a couple of days.

Mike

[Rustynuts]

I am starting to think this area might be contributing to some of the cab wind noise. Being the fiberglass panel does not fit tight to the cab, and no sealant is applied between the cab and fiberglass panel, air flowing around the cab is being channeled in this gap and into the void space which is right behind the seats. Since mine is a charcoal gray color I decided to try filling this crack with foam backer rod, it blends right in and without shining a light on it for the pics, yiu can barely even see it. Pretty much rolled it into the crack with some plastic tools I had and it filled this void nice and tight. It will be interest to see if it helps, if it doesn’t, it’s easily pulled back out.

[svoshop]

I would think that less airflow is better. With all the issues we are having concerning screws backing out etc. I would have to think that the more we cut down on vibration and the pressurization of that space, the better off we are.

Interested to hear your feedback, as I will probably perform this "mod" as well.

Thanks
Mike

[75462]

Originally Posted by Rustynuts

I am starting to think this area might be contributing to some of the cab wind noise. Being the fiberglass panel does not fit tight to the cab, and no sealant is applied between the cab and fiberglass panel, air flowing around the cab is being channeled in this gap and into the void space which is right behind the seats. Since mine is a charcoal gray color I decided to try filling this crack with foam backer rod, it blends right in and without shining a light on it for the pics, yiu can barely even see it. Pretty much rolled it into the crack with some plastic tools I had and it filled this void nice and tight. It will be interest to see if it helps, if it doesn’t, it’s easily pulled back out.

Hey Brian,

Wonder how a bead of Black 3M 5200 would hold up in that gap.

[svoshop]

Originally Posted by 75462

Hey Brian,

Wonder how a bead of Black 3M 5200 would hold up in that gap.

I think he went with the foam to remove it later if needed. Not to speak on his behalf.

I think any sealer would hold up. Provided you are not trying to fill to large of a void.

Mike

[Rustynuts]

Originally Posted by 75462

Hey Brian,

Wonder how a bead of Black 3M 5200 would hold up in that gap.

The 5200 is not like a typical caulk, it’s a little thinner and would not stay in this crack before it cured. At the widest point, it is probably a little over 3/8” on mine so that would be pumping a lot of caulk in there. I went with the foam rod as it is closed cell so won’t absorb water, seals good and removable if for some reason it doesn’t work. Figured it’s worth a try.

[75462]

Originally Posted by Rustynuts

The 5200 is not like a typical caulk, it’s a little thinner and would not stay in this crack before it cured. At the widest point, it is probably a little over 3/8” on mine so that would be pumping a lot of caulk in there. I went with the foam rod as it is closed cell so won’t absorb water, seals good and removable if for some reason it doesn’t work. Figured it’s worth a try.

I think it’s a source of wind noise and have been wanting to do something with it. Looking forward to your post drive update. Thanks.

[svoshop]

I sealed mine up this morning. I took some pictures and they are all terrible, but I will post anyways in a few.

Looking at the side of the cab where you inserted the foam I am going to do this too. As the air hits the mirror, it has to be deflected right into that opening and I really lean back on the theory that air movement in there is simply going to aid in the movement of the cabin attachment points.

Mike

[svoshop]

Originally Posted by Rustynuts

I am starting to think this area might be contributing to some of the cab wind noise. Being the fiberglass panel does not fit tight to the cab, and no sealant is applied between the cab and fiberglass panel, air flowing around the cab is being channeled in this gap and into the void space which is right behind the seats. Since mine is a charcoal gray color I decided to try filling this crack with foam backer rod, it blends right in and without shining a light on it for the pics, yiu can barely even see it. Pretty much rolled it into the crack with some plastic tools I had and it filled this void nice and tight. It will be interest to see if it helps, if it doesn’t, it’s easily pulled back out.

What size did you go with?

[Rustynuts]

I used the 5/8”, it was a tight fit at the top but found if you squeeze it real tight it will hold that shape for a few seconds to work it into the crack at the top. Working down it gets easier but then real tight towards the bottom so I used a razor blade and started shaving it down on the side but kept the fit tight. The little plastic tools made it pretty easy to kind of roll it in the crack.

[Pmcmath]

Well at least yours wasn't leaking water behind the enclosures. Yes those streaks are water from ac and rain and you can also see the light outside.

[svoshop]

Originally Posted by Rustynuts

I used the 5/8”, it was a tight fit at the top but found if you squeeze it real tight it will hold that shape for a few seconds to work it into the crack at the top. Working down it gets easier but then real tight towards the bottom so I used a razor blade and started shaving it down on the side but kept the fit tight. The little plastic tools made it pretty easy to kind of roll it in the crack.

5/8 is what I had ordered, so that's great. I have trim removal tools also that will surely be handy to push into the open space. I finish putting the cabinet back in this morning. If I get off this computer

[Rustynuts]

Originally Posted by Pmcmath

Well at least yours wasn't leaking water behind the enclosures. Yes those streaks are water from ac and rain and you can also see the light outside.

Wow, that seam should have been sealed at the factory before paint was done, has it come out on the outside?


It really seems to be a hit and miss on how well this section is put together, its either pretty decent or done horribly!

[Rustynuts]

Originally Posted by svoshop

5/8 is what I had ordered, so that's great. I have trim removal tools also that will surely be handy to push into the open space. I finish putting the cabinet back in this morning. If I get off this computer

I had bought a few cameras for an upcoming Seneca project and each one came with the tools I showed. I took one of them and heated the flat hooked end and straitened it out and then flattened the end of it so it wouldn't slice or puncture the foam while trying to work it in the crack...that end worked the best out of all of them.