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Old 04-18-2019, 12:21 PM   #1
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Winnebago Owners Club
Freightliner Owners Club
Join Date: Nov 2009
Location: Olympia WA
Posts: 173
Front cap, not windshield leak saga

Saga continues
I had my windshield replaced in 2015.
This winter I got a slow leak and a few drops on the dash.
I took it back to the glass company as they had a 'lifetime warranty on leaks'. Removed the rubber trip and directed hose down between plastic C-clip/U-channel onto top of windshield, no leaks.

Then directed it upward above C-clip/U-channel toward fiberglass cap, leaked and ran down the back side of the steel windshield frame (I had previously removed Winnie's plastic trim strip on the inside so I could see the black metal frame).

Basically the trim molding and C-Clip form a dam that can hold water and it can migrate between faulty seal on front cap and metal frame then down into the coach.

Next step is to clean gap, treat rust with Ospho, paint, then get Geocel Proflex or other sealer and fill between C-Clip/U-Channel and fiberglass cap. I also plan to run a bead along the cap before I re-install the rubber trim strip to glue/seal it in place. Then the 2" wide electrical tape others have recommended.

Any recommendations on sealer to try to seal the cap to the frame?

2012 Journey 36m
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Old 04-19-2019, 08:38 PM   #2
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Join Date: Aug 2001
Location: North America somewhere
Posts: 16,304
I would use what auto windshield installer use, urethane. I would not use anything containing silicone, they don't. Nothing else will stick to dried silicone, not even more silicone.
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG retired;Good Sam Life member,FMCA."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution. "Abraham Lincoln"
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front cap, leak, windshield

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