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Old 08-09-2018, 09:30 PM   #1
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Brand: Thor Motor Coach
Model: Class C / Chateau 31L
State: Iowa
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THOR #1763
Roof leak issue 2014 Class C Chateau

Water leaking from front outside lower cab after moderate to heavy rain. Tried caulking forward roof areas without success. Just cant identify where the water is leaking in. HELP
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Old 08-09-2018, 09:42 PM   #2
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Model: Four Winds 28z
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THOR #5725
Roof leak issue 2014 Class C Chateau

Good times. Could you be more specific? Over the cab in the bunk or behind the front seats on the ground? Do you have a slide on that side?
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Old 08-09-2018, 11:05 PM   #3
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THOR #1763
Over the cab in the bunk area. Water collects in the lowest point of the cab above the windshield. It has caused some minor dampness on the wood cover. I drilled weep holes in the hard plastic mold on the underside of the cab overhang to let the water drain.
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Old 08-09-2018, 11:38 PM   #4
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THOR #11781
Check your clearance lights and the seam where the front cap connects to the roof. When I had my class c those were annual maintenance items.
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Old 08-09-2018, 11:50 PM   #5
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Model: THOR Chateua 35SF
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THOR #11130
Does your model have the one piece front cap or seams along the sides?
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Old 08-10-2018, 12:44 AM   #6
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Brand: Thor Motor Coach
Model: Class C / Chateau 31L
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THOR #1763
I have a 32L model Chateau. I will re-check the clearance lights. Solid cab (no window) with the seam where it meets the roof. There are seams on the sides that curl down the cab on the sides. The seams are covered by a grey pliable strip.
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Old 08-10-2018, 12:50 AM   #7
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THOR #5725
U second the clearance lights And I would put eternal bond on all of those seems upfront
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Old 08-10-2018, 01:15 AM   #8
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THOR #11130
Roger that...lots or pressurized water hits those seams when running. Same as a blowing, straight line 70 MPH rainstorm.
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Old 08-10-2018, 09:44 PM   #9
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I suggest checking
a few places.... where I had my problems... although I didn't see water where you are saying...
Based on your description I wonder if it's the seal between the ford cab and the bottom of the bunk

I had leaks in a couple places... (similar vintage C)
at the top end of the pre-bent corner trim molding... the one with the vinyl insert... it was right up at the last couple screws. Just were the intersection happens between the nose cone, the roof membrane, the top of that insert corner molding and the front end of the awning "gutter" molding.
A couple screws in that vinyl insert just weren't sealed at all. You'd probably see some rusty screws if it was leaking & you pull that insert out for a look..

then
Extending from that area forward and down the curve, the width dimension of the nose cone was just a bit too short, so it only just barely was covered by that corner insert molding... basically no sealing surface at all at the top.

let me know if you have questions...or attach pictures. I had mine opened up pretty good during the repair so I might be able to help.

about the clearnace lights... I had moisture in mine...it's a bad design...but zero evidence of any leaking in my case into teh coach
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