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Old 06-08-2021, 06:49 AM   #1
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2002 National 6355

Our 2002 National Dolphin 6355 has a window leak on both front driver and passenger side windows. I guess I need to take them out and see what the problem is but I dont see how they come out. On the inside there is a 1 1/4" rubber trim strip. I dont see screws holding the window in. Do I need to remove this rubber strip and if so, Im concerned I wont be able to replace it with a new rubber strip.. Where can I order these rubber window strips before I take out the window? I believe the leak is between the two metal inside and outside pieces where they join together.
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Old 06-10-2021, 06:44 PM   #2
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There should be screws running around the perimeter of the window frame that clamps the inner and outer frame of the window together. You'll need some butyl tape to reseal them.
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Old 06-10-2021, 08:14 PM   #3
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National used a different style of windows back in the earlier 2000's there are no screws. They are pressure fit to the opening with an interior rubber flange. You have to take the rubber partially out of the track and push the window out. Then after your repair and new butyl on the frame, use a wheeled tool for redoing the rubber seal on screen doors to re seat the rubber flange into the window frame, then you have to use a string wrapped around inside the rubber and pull the string around the flange to seat it against the inside wall while someone pushes from the outside.
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Old 06-10-2021, 08:52 PM   #4
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I made a similar repair to yours on my last 2000 Tropi-cal . I was able to rebuild the interior wall with new luan board leaving the windows in place and sliding the new board in behind the rubber flange, only drawback is you may need to have a transition in the middle of the wall below the window, then I re-sealed the outer window frame with white pro-flex, and that took care of my issues...it wasn't 100% the proper method but it worked just fine and looked good on the inside.
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Old 06-11-2021, 05:32 AM   #5
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Thanks everyone for your response. It appears that the frame is one piece. The leak I see is coming in from the sliding window at the bottom. I removed the rubber/felt seal and there are only two small holes for rain water to leak back outside. If they get plugged up or excessive water loads up the track, then it comes in over the track and comes down the interior wall. I plan on drilling out these holes and adding a few more. They are kind of hard to see or get to but it can be done. Rest assured I will come up with something. Thanks everyone, have a great summer. Here in Bryson City, NC, gas is $2.99.9 for regular.
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Old 06-11-2021, 02:25 PM   #6
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Removing Window with no screws

We have the same problem with our 2000 Caribbean...the wall is rotted underneath the window. We pulled the window out and the rubber strip came out in 2 pieces. Any suggestions on where to buy a new one?
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Old 06-12-2021, 09:15 AM   #7
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Ive tried many times trying to find a video or information on how to remove the window with no results. Yes, the rubber strip inside the window seems to hold the window in place, of course the sealant helps. I cant find any where to purchase the rubber strip. I didnt remove my windows because of this. I removed the paneling and install a product from Home Depot, an insulation board with a pattern on one side. This worked great until it leaked again and now I have to replace it again. But first I drilling more holes for water to run out. then I will replace the wall covering.
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Old 06-12-2021, 11:55 AM   #8
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Quote:
Originally Posted by Home Builder View Post
Ive tried many times trying to find a video or information on how to remove the window with no results. Yes, the rubber strip inside the window seems to hold the window in place, of course the sealant helps. I cant find any where to purchase the rubber strip. I didnt remove my windows because of this. I removed the paneling and install a product from Home Depot, an insulation board with a pattern on one side. This worked great until it leaked again and now I have to replace it again. But first I drilling more holes for water to run out. then I will replace the wall covering.
The Rubber strip can be re used if it not damaged too badly, it can be forced back into its track using a tool that you would use to press the piping into a screen door track.
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Old 06-12-2021, 12:12 PM   #9
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I cleaned the old sealant from the outside window to fiberglass joint, taped it all off, and used Sika 1A caulk across the top and down the sides. I didn't caulk across the bottom. It has been 4 years with no leaks and the caulk looks like I did it yesterday.
I always make sure the weep holes on the bottom of the frame are clear also.
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Old Yesterday, 10:08 AM   #10
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Removing Window with no screws

Thanks for your responses. Unfortunately we are finding much more damage than we anticipated. Discouraging how the previous owner was able to hide the damage. I will continue to use this forum for information regarding our 2000 Caribbean. For example...can't seem to locate the dipstick to check the oil. In the manual it says it should be located above the radiator. We see the transmission fluid dipstick and where to add the oil, but not the oil dipstick. Any suggestions?
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