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Old 08-09-2019, 02:23 PM   #1
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Brand: Thor Motor Coach
Model: Challenger 37BT
State: North Carolina
Posts: 247
THOR #11321
Passenger side window track leaking

Our 17 Challenger 37 TB passenger side window track fills with water, when it rains heavy. It runs off the roof, down the side, over the back half of the window, and fills the track to overflowing ! It's happened twice now. Our Coach has Frameless windows, and I have Looked for the elusive Weep Holes and can't find any .
I have purchased self adhesive gutter to install above the window to try to divert water away from them.
Anyone know of anything else I could/should check.
Pics show the emergency deflector I made from the top of my tool tote, and the window track. I ran a zip tie in the notches from one to the other from front to back, but couldn't find the "Weep Holes" to the outside.
Hoping the additional gutter will divert any further flood ! Click image for larger version

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Old 08-09-2019, 11:39 PM   #2
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Brand: Thor Motor Coach
Model: ACE 30.2
State: Massachusetts
Posts: 260
THOR #8180
Oh yeah this is a typical issue. Be sure the top edge where the glass overlaps the siding is caulked. You’ll have to look at it from the roof trust me. I thought I sealed mine only to go up on the roof and find a 1-1/2” section that was only 1/2 cocked! Lol. I never saw it from a ladder. So I sealed that. Next is the drain holes at the bottom so the felt channel doesn’t fill with water. Oh yeah mine did. Still is damp occasionally if we get a heavy rain. Water will weep its way along the felt and wet the channel. It’s just a bad design.
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Old 08-10-2019, 12:46 AM   #3
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Brand: Thor Motor Coach
Model: Vegas 24.1
State: Virginia
Posts: 49
THOR #13067
Weep hole location

Here are the weep holes on our Vegas with frameless windows.
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Old 08-23-2019, 05:52 PM   #4
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Brand: Thor Motor Coach
Model: Miramar
State: Maryland
Posts: 4
THOR #16472
Same Issue - FIXED!

Hi, I had the same issue in my Miramar and finally found a fix. It was horrible, when it rained the water ran on my dash and even onto the floor. I tried sealing around the window to no avail. I also blew out the weep holes with a compressor to make sure that there were not clogged, still no luck.
Your picture of the water deflectors was very similar to mine... then I found the problems.
There were two main problems.
The first was the rubber shrunk and retracted leaving a open area for the rain to run in. Due to the small size of the weep holes they just could not keep up with the volume of water.
Fix: I simply pulled up the seal and reseated it making sure the bottom edge was tight against the frame. I applied black caulk to the end to keep it from retracting again.
The second issue was related to the application of the exterior window trim. It was raised above the rubber seal holding the water which exacerbated the issue.
Fix: used a small file and cut drain slots along the bottom edge.
Retracted Rubber Seal:
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Drainage Notches:
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Closeup of Drainage Notch:
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Since i made these changes my coach is water free even in the hardest rains.
Hope this helps!
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Old 08-23-2019, 06:36 PM   #5
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Brand: Thor Motor Coach
Model: Challenger 37BT
State: North Carolina
Posts: 247
THOR #11321
This is my soulution, I applied this along the top of the window and about 3"down the back edge of the window. Click image for larger version

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Old 08-23-2019, 07:23 PM   #6
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Brand: Thor Motor Coach
Model: Miramar
State: Maryland
Posts: 4
THOR #16472
Like Minds! I had done the same thing but didn't have your success. Glad you found a solution!
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