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07-27-2021, 12:10 PM
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#1
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Junior Member
Join Date: Jul 2021
Location: Lutz
Posts: 5
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Rear exterior Fiberglass panel flexing 2019 Keystone Bullet 287QBS
I am new to this forum. I have a 2019 Keystone Bullet 287QBS with the exterior rear panel that is flexing someone mentioned to me that it indicates water penetration and damage Is that true?
Also looking to repair the area above the tires due to 3 tire loss, 1 last year on driver side and 2 this past June on passenger side.
Jeff B Land O Lakes Florida
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07-27-2021, 01:14 PM
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#2
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,341
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Welcome to the forum
Often times the rear wall is “floating”, meaning it’s only held in place by the top, bottom and sides using staples or screws and the rear window if you have one.
If you can, post pics of the damage so we can better try to help.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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07-27-2021, 03:52 PM
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#3
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Junior Member
Join Date: Jul 2021
Location: Lutz
Posts: 5
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The dent below the right hand rear clearance light happened this past trip. When pushing on the back pane it flex's inward. It does not appear loose along the seams.
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07-27-2021, 04:28 PM
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#4
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Site Team
Join Date: Feb 2014
Location: W. Texas
Posts: 17,690
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I have to ask; how do you lose 3 tires on a 2019 trailer? Are you keeping them at max psi? Hitting potholes etc.? Are they overloaded? I've not had that many tire failures in decades much less on a 2 year old trailer.
__________________
Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
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07-27-2021, 04:41 PM
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#5
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,996
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The side walls are "vacuum bonded" and feel solid. The rear wall is "hung in place after the trailer sidewalls are installed. If it were also "vacuum bonded" the costs to provide bolt locations to install the rear wall would increase the costs. So, Keystone uses a "partially built wall, the interior luan is glued to the aluminum frame, the wall is then put in position and there is access to the aluminum frame to bolt it to the side walls and the floor, then insulation is installed and the rear "skin" is installed. It's held in place along all 4 perimeters by molding screwed through the FILON. Any windows, ladder mounts, tail lights and if installed, a bar-b-que rack all screw "through the FILON to help secure the rear wall to the frame. When the sun shines on the rear wall, it gets hot, expands enough to make it "bubble, droop or bulge enough to make it appear "loose".
Here are a couple of photos of the rear wall being installed on a Cougar at the factory. In the first photo you can see how the "rear wall without FILON is installed, then as the trailer moves down the line, the FILON is hung in place and trimmed to fit the roofline.
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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07-28-2021, 04:28 AM
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#6
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Junior Member
Join Date: Jul 2021
Location: Lutz
Posts: 5
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Tire area damage
sourdough: I am not sure what caused the tires to fail. The tires were kept at recommended pressure and never driven when low due to cooler weather. They also did not sit with low pressure when stored.
I just found out this year that the area above the tires needs to be repaired and maintained. This was after I lost two tires on the passenger side. The trailer and truck was not overloaded.
Thank you for the information on the back exterior wall.
19 Keystone Bullet 287QBS
F150 FX4 w/Tow package
Jeff B
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07-28-2021, 06:04 AM
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#7
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Site Team
Join Date: Feb 2014
Location: W. Texas
Posts: 17,690
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Quote:
Originally Posted by Jeff B Florida
sourdough: I am not sure what caused the tires to fail. The tires were kept at recommended pressure and never driven when low due to cooler weather. They also did not sit with low pressure when stored.
I just found out this year that the area above the tires needs to be repaired and maintained. This was after I lost two tires on the passenger side. The trailer and truck was not overloaded.
Thank you for the information on the back exterior wall.
19 Keystone Bullet 287QBS
F150 FX4 w/Tow package
Jeff B
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Jeff if they aren't overloaded (have you tried a scale yet?) then maybe there was a bad lot of tires or something. That is a phenomenal failure rate to me. I am assuming you have replaced all the tires, if not I would highly recommend doing so and going with one of the more reputable brands; Carlisle, Goodyear etc. Good luck.
__________________
Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
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07-28-2021, 09:57 AM
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#8
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Junior Member
Join Date: Jul 2021
Location: Lutz
Posts: 5
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Sourdough: Already replaced all tires with Carlisle's.
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07-28-2021, 09:57 AM
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#9
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Junior Member
Join Date: Jul 2021
Location: Lutz
Posts: 5
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Quote:
Originally Posted by JRTJH
The side walls are "vacuum bonded" and feel solid. The rear wall is "hung in place after the trailer sidewalls are installed. If it were also "vacuum bonded" the costs to provide bolt locations to install the rear wall would increase the costs. So, Keystone uses a "partially built wall, the interior luan is glued to the aluminum frame, the wall is then put in position and there is access to the aluminum frame to bolt it to the side walls and the floor, then insulation is installed and the rear "skin" is installed. It's held in place along all 4 perimeters by molding screwed through the FILON. Any windows, ladder mounts, tail lights and if installed, a bar-b-que rack all screw "through the FILON to help secure the rear wall to the frame. When the sun shines on the rear wall, it gets hot, expands enough to make it "bubble, droop or bulge enough to make it appear "loose".
Here are a couple of photos of the rear wall being installed on a Cougar at the factory. In the first photo you can see how the "rear wall without FILON is installed, then as the trailer moves down the line, the FILON is hung in place and trimmed to fit the roofline.
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Thank you for the information. Stay well and enjoy.
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07-28-2021, 01:10 PM
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#10
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Member
Join Date: Dec 2019
Location: Surrey
Posts: 93
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Quote:
Originally Posted by Jeff B Florida
Sourdough: Already replaced all tires with Carlisle's.
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While you are under look to see if the laun boards are moldy in the tire areas.
That is not needed if you have the hyper deck floor.
Your 2019 may or may not have the newer floor.
__________________
2018 Premier Bullet 22RBPR
2011 GMC 3500HD 6.6 Durmax
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