Go Back   Montana Owners Club - Keystone Montana 5th Wheel Forum > MOC on M.A.R.S. > Montana Problems, Problem Solving & Technical Help
Click Here to Login

Reply
 
Thread Tools Display Modes
 
Old 11-14-2019, 08:49 PM   #1
jdarwin
Seasoned Camper
 
jdarwin's Avatar
 
Join Date: May 2018
Location: Bedford
Posts: 61
M.O.C. #21728
What's going on under the back of my 5er

I would appreciate someone taking a look at these pics and providing some direction. I notice the black plastic hanging down and found the bent metal and screws backing out. We purchased this (3931FB) new in Feb. Thanks for taking a look.

RightRearUnder.jpg

MiddleUnder.jpg

LeftRearUnder.jpg
__________________
2019 3931FB
2017 F350 6.7 Powerstroke SRW
B&W Companion Slider 20K
jdarwin is offline   Reply With Quote
Old 11-14-2019, 09:03 PM   #2
Theunz
Montana Fan
 
Join Date: Mar 2016
Location: Catoosa
Posts: 453
M.O.C. #18384
It's called "vibration" and you better get use to it Your home on wheels tries to self destruct every time it goes down the road. It looks like it's just screws backing out. You should replace any that are missing and check the rest for tightness. If the screws won't tighten then you can replace them with one size larger. Seriously, you just need to keep a constant vigil on ALL of the fasteners on your trailer, as it's a never ending task to keep them tight.
Actually, after looking at your model year you might have nails holding the coroplast. If that's the case you can replace them with self tapping screws. Any nails that are starting to slip down should be pulled out and replaced with the screws instead of being pounded back in. Good thing you caught it early while it's still an easy fix.
__________________
2015 3100RL legacy...2005 Ford F-250 CC SB. Tows like a charm! 4/19 Updated to 2017 Chevy 3500 CC SB SRW -hope it tows as well as my F 250 did!
Theunz is offline   Reply With Quote
Old 11-14-2019, 09:07 PM   #3
DQDick
Montana Master
 
DQDick's Avatar
 
Join Date: Jun 2011
Location: Wilsey
Posts: 16,708
M.O.C. #11455
Had ours coming down like that, but ours was because they had cut the coroplast wrong and it didn't hit the metal frame some of the way across. I fixed it by screwing a door sill on there to bridge the gap. From what your pictures show I'd either put screws back in place with some fender washers or use the sill treatment. My problem is I can't identify what that is hanging down in the middle picture and that concerns me.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, MorRyde pin box
2017 3500 Dodge Maxi DRW 4X4, Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, etc.
DQDick is offline   Reply With Quote
Old 11-14-2019, 09:20 PM   #4
jdarwin
Seasoned Camper
 
jdarwin's Avatar
 
Join Date: May 2018
Location: Bedford
Posts: 61
M.O.C. #21728
The piece hanging down is black corrugated plastic. There's another small piece on the left side. It think it may be part of the large underbelly covering.
__________________
2019 3931FB
2017 F350 6.7 Powerstroke SRW
B&W Companion Slider 20K
jdarwin is offline   Reply With Quote
Old 11-14-2019, 09:40 PM   #5
Daryles
Montana Fan
 
Daryles's Avatar
 
Join Date: May 2019
Location: Alton
Posts: 280
M.O.C. #24086
Use stainless steel screws and washers.
__________________
Daryl
Daryles is online now   Reply With Quote
Old 11-15-2019, 08:08 PM   #6
dhuhn
Montana Fan
 
dhuhn's Avatar
 
Join Date: Mar 2015
Location: Sequim
Posts: 182
M.O.C. #17176
Send a message via MSN to dhuhn
Mine did the same. I reattached mine with self tapping screws. Looked like they cut mine a little short.
__________________

Dan & Sandy Huhn
2016 Montana 3720 2015 Chevy 3500 SWD Duro Max
Prev 2012 High Country 313RE 2012 Chevy 2500 DMax
dhuhn is offline   Reply With Quote
Old 11-16-2019, 08:40 AM   #7
speedster100
Montana Fan
 
Join Date: Jun 2015
Location: owen sound
Posts: 409
M.O.C. #17566
Put a dab of silicone on the self tapping screws when reinstalling and they likely won't back out anymore. It seems to help absorb the vibration..... worked for me...
speedster100 is online now   Reply With Quote
Old 11-16-2019, 09:44 AM   #8
Dave W
Montana Master
 
Dave W's Avatar
 
Join Date: Jul 2014
Location: Upstate NY
Posts: 942
M.O.C. #14547
Our HC had the same problem though not quite as bad. I 'temporarily' fixed it with Eternabond tape - then forgot about it until this thread. Oh well, spring is just around the corner



Oh and that gap, it's nice open doorway to critters and most likely whay we had mice this spring since the extension cord I use to keep the battery charged, hooked the corner, probably when I used the snow blower and moved the cord. Made for a nice walkway.
__________________
Dave W
Traveling with my DW Susan, a couple poodlepups and our 2014 Montana High Country 343RL, being towed by a 6.7 2011 F250 CCLB using a B&W hitch and OEM puck system
Dave W is offline   Reply With Quote
Old 11-20-2019, 03:51 PM   #9
FATBOY05
New Member
 
Join Date: Aug 2019
Location: LYNCHBURG
Posts: 3
M.O.C. #24622
I used 1 1/2" angle ,the kind with holes already in it. Mine was left open some by the repair shop and I didn't want cold getting in freezing my water or the stink-bugs getting in.
FATBOY05 is offline   Reply With Quote
Old 11-21-2019, 08:44 PM   #10
TN road dog
Established Member
 
Join Date: Apr 2013
Location: Somerville
Posts: 16
M.O.C. #13347
Another point to be aware of. The black plastic undersheath is constructed much like corrugated cardboard. On my unit the open ends of the corrugation was on the sides of the unit. While traveling in the rain, water spray from the roadway / tires filled the corrugated channels. The weight of the water in the channels caused the underbelly to sag greatly. While parked at a RV site I was able to raise the center area of the underbelly and drain most of the water. After couple weeks of no rain and apparently dried out, I sealed the ends or edges of the underbelly plastic corrugations with black silicone caulking. So far, no more problems.
__________________
Michael
2011 Big Sky 3400RL
2011 Chev 2500HD 4WD CC
TN road dog is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Montana RV, Keystone RV Company or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 05:39 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×