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Old 08-20-2020, 08:15 PM   #1
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Brand: Thor Motor Coach
Model: ACE 30.4
State: West Virginia
Posts: 108
THOR #8716
ACE Ladder

Decided to replace the ladder mounting screws on our 17 ACE with stainless steel. Started on the lowest mount just above the bumper and the first screw broke off due to rust. The second one spun in the hole and had to be pulled out. When I got the last one out I pulled the ladder frame away from the RV body and water started pouring out from around the left ladder mounting bracket.
Apparently the ladder tube (handrail) was partially filled and allowed the water to seep in around the screws on the bracket and damaged the wood. The new screws didnít want to grab very well so I rotated the bracket and drilled new holes. I donít think the wood is any better there so Iím considering putting in longer screws that will go all the way through the wall and catch a backer-board in the storage compartment.
How in the world would water get into the ladder?

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Old 08-20-2020, 08:47 PM   #2
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Brand: Thor Motor Coach
Model: Miramar 34.2
State: New York
Posts: 424
THOR #3584
I had a similar situation where the screws rusted out. I put a 2 x 4 behind the wall where the brackets were on the ladder and put three wood screws through the ladder bracket right into the 2 x 4, held nice and tight. Touched it up with black paint and it looks like it came from the factory that way.
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Old 08-20-2020, 08:48 PM   #3
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Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 3,488
THOR #6411
Quote:
Originally Posted by Steamboat View Post
Decided to replace the ladder mounting screws on our 17 ACE with stainless steel. Started on the lowest mount just above the bumper and the first screw broke off due to rust. The second one spun in the hole and had to be pulled out. When I got the last one out I pulled the ladder frame away from the RV body and water started pouring out from around the left ladder mounting bracket.
Apparently the ladder tube (handrail) was partially filled and allowed the water to seep in around the screws on the bracket and damaged the wood. The new screws didnít want to grab very well so I rotated the bracket and drilled new holes. I donít think the wood is any better there so Iím considering putting in longer screws that will go all the way through the wall and catch a backer-board in the storage compartment.
How in the world would water get into the ladder?
The support screws go through the round ladder rails. They are not calked or sealed. Water running down the rails eventually finds its way to the inside of the rails. Steel screws and aluminum rails equals corrosion - Ask anyone with an Airstream or UltraVan.
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2016 Hurricane 31S
1961 Rampside in tow
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Old 08-20-2020, 08:50 PM   #4
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Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
Posts: 5,218
THOR #13932
Also Condensation.
Seal everything.

On my little toy hauler I used through bolts and big ass custom washers. (you'll need spacers to get any sort of tight on it due to interior vs exterior wall space/squish.)
That awning is NEVER coming loose again.
I Preemptively did the ladder also.

Edit:
So I reach in the junk drawer just this minute for something and pulled this out blind. I haven't seen it in maybe ten years.
The nitrous toy hauler had a polished diamond plate theme.....
I wish we had been typing about gold bars instead of this damn washer....
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Below is a link to most of my modifications either accomplished or pending.
https://www.thorforums.com/forums/f2...n-18996-3.html

Click on my pictures then click the pop-up for a full screen zoomable picture.
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Old 08-20-2020, 08:59 PM   #5
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Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 3,488
THOR #6411
Quote:
Originally Posted by ducksface View Post
Also Condensation.
Seal everything.

On my little toy hauler I used through bolts and big ass custom washers. (you'll need spacers to get any sort of tight on it due to interior vs exterior wall space/squish.)
That awning is NEVER coming loose again.
I Preemptively did the ladder also.
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Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
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