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05-13-2022, 05:55 PM
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#1
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Senior Member
Join Date: Dec 2014
Location: Salt Lake City, UT
Posts: 662
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Broken windshield-what is my coach telling me?
So there I was, exiting a rv park. I'm driving, slowly, through the narrow roads. This park had a bunch of speed bumps. I went over one bump, and was surprised by the extreme jolt. There was a large Crack noise as well, which make me think of lumber cracking.
I inspected my woodwork I added to support the MCD blinds I added. Everything was fine.
2 weeks later, I noticed a large horizontal crack in the uppermost region of my driver windshield.
So, why did this happen?
The windshield appears to be 15 years old. The seals might have aged and became stiff.
Being this old, the windshield has a lot rock strikes that have been repaired. Maybe the right amount of flex and impact was just enough.
The shocks are fine and coach is driving great. I routinely hit jarring bumps on bridges at 60mph without issues.
This is a split windshield and the newer passenger side is doing fine.
__________________
2006 Newmar Essex 4502
2015 Jeep Grand Cherokee
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05-13-2022, 06:11 PM
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#2
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 25,837
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If the crack runs through a previous repair ; there's your answer .
Particularly if the repair was close to the edge of the glass.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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05-13-2022, 06:29 PM
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#3
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Senior Member
Join Date: Dec 2014
Location: Salt Lake City, UT
Posts: 662
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Thanks Skip.
I got out my ladder and inspected. The crack is 30 inches long left to right. It appears to travel through 2 pockmarks. Small rock strikes. There are several repairs about 10 inches lower.
I also inspected the windshield seals. Very stiff. Not flexible. I'm thinking the windshield didn't have the flex support it needs.
I'm just troubled that this happened at a 10mph speed. I don't want to replace the windshield just to have it happen again.
__________________
2006 Newmar Essex 4502
2015 Jeep Grand Cherokee
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05-13-2022, 06:42 PM
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#4
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 25,837
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I've had windshields crack from temp differential ; sat for 5 mins in A&W waiting for my burger with defrost on then pulled on to the street in sub freezing temps , accelerated to 35 mph and POW cracked top to bottom , no bumps just cold air hitting a hot windshield with a small flaw .
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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05-13-2022, 06:49 PM
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#5
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Senior Member
Alpine Owners Club Newmar Owners Club
Join Date: Oct 2005
Location: Fremont, Ca
Posts: 1,294
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I’ve had two windshields crack just sitting. Fine in the evening, cracked in the morning……this in very mild weather with minimal temperature swings.
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Jerry & Judy, Fremont, California
2017 Dutch Star 4018
Freightliner, HWH Active Air
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05-14-2022, 01:12 PM
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#6
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Senior Member
Newmar Owners Club Carolina Campers Spartan Chassis
Join Date: Apr 2019
Location: China Grove, NC
Posts: 732
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In the 3 years I have owned my coach I have had 8 driver side windshield installs. Last year I decided that I likely don't have the support I need for the front cabinets, so I added a truck bed bar to provide support for the cabinets(redneck fix). I keep it very tight in pressure. Since then I have put over 8k miles on the coach and hit lots of bad bumps, and windshield is holding up( knock on wood). I will continue with this apparent fix....
__________________
Randy Goodman - 2006 Newmar Mtn Aire 4032 DP, Spartan, Blue OX Avail, 2021 JLU Rubicon 35/12.5s. 2020 Jeep JLU Sahara stock.1st RV 3/19. Looking for a much nicer\NEW ride!!
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