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RLD cap BAD LEAK

Discussion in 'Tonneau Covers, Caps and Shells' started by LTR9, Mar 28, 2022.

  1. Mar 28, 2022 at 9:45 AM
    #1
    LTR9

    LTR9 [OP] New Member

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    I just dropped 6k on an RLD cap and after the first rain I’ve noticed it’s leaking from the front of the truck bed. Anyone else have this problem with RLD or any other cap?

    9F68BF57-1330-49B8-9342-7FEA3F917B81.jpg
     
  2. Mar 28, 2022 at 10:06 AM
    #2
    Windsor

    Windsor New Member

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    Most caps will leak at the front edge of the installer isn't specifically told to pay attention and seal it thoroughly. Leer on my Tacoma leaked up front, Snugtop on my Tundra leaks up front. I'll eventually lift it up and seal it. Bed rail caps also allow water to get by, fix that by pulling them off and putting sealant down before putting them back on.
     
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  3. Mar 28, 2022 at 10:16 AM
    #3
    LTR9

    LTR9 [OP] New Member

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    should I just use some silicone or what do you suggest?
     
  4. Mar 28, 2022 at 10:37 AM
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    Windsor

    Windsor New Member

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    Personally, I plan to get a few tubes of butyl rubber sealant when I seal mine.
     
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  5. Mar 28, 2022 at 10:39 AM
    #5
    LTR9

    LTR9 [OP] New Member

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    Thanks, I assume that stuff comes in caulking tubes?
     
  6. Mar 28, 2022 at 10:42 AM
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    LTR9

    LTR9 [OP] New Member

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    6CCCBC5D-3990-4513-9499-434D4239951D.jpg
     
  7. Mar 28, 2022 at 10:43 AM
    #7
    NoRcptn

    NoRcptn Better than mediocre poster

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    if you have the dealer install it take it back and let them know. No show should leak that bad, maybe a little at the tailgate but that’s it. They should’ve used a weatherstrip like this which comes in different thicknesses for different weights.
    Tintvent Camper Shell Seal, EPDM Rubber Tailgate Seal Strip for Trunk Cap, Tonneau Cover, Pickups, Automotive(26.3Ft) https://www.amazon.com/dp/B09BNDD4RK?_encoding=UTF8
     
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  8. Mar 28, 2022 at 10:56 AM
    #8
    LTR9

    LTR9 [OP] New Member

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    They did use that stuff. I think it’s leaking due to the bed rails on the sides leaving a 5mm gap on the front of the bed
     
  9. Mar 28, 2022 at 11:00 AM
    #9
    Windsor

    Windsor New Member

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    Yep, Ive used CRL 777 on multiple projects and it has worked well.
     
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  10. Mar 28, 2022 at 1:08 PM
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    Ellis_McPickle

    Ellis_McPickle New Member

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    You may also want to play around with the positioning of the cap on the bed. I had to move mine around a bit, and if you push it too far forward, it will start riding up and creating a gap. So you may have it too far forward? In the end, RTV or other sealant is your friend.
     
  11. Mar 28, 2022 at 2:38 PM
    #11
    timsp8

    timsp8 Member

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    It’s probably cause the center along the bed is lower than the edges. You have to compensate with a bigger foam piece. I also had to use butyl tape on the corners like said above. But also go back to the installer and make them fix it.
     
    shawn474 and LTR9 [OP] like this.
  12. Mar 28, 2022 at 2:42 PM
    #12
    Over the LINE

    Over the LINE New Member

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    I had the same problem on my 2016. The center of the bed is lower than the sides. The installer used a different kind of gasket or doubled the gasket, I don't remember which to make up the space. I'm pretty sure a little sealant was used also.
     
  13. Mar 28, 2022 at 2:48 PM
    #13
    NoRcptn

    NoRcptn Better than mediocre poster

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    Yes the front accounts for a thicker section or double it up. It looks like the picture may have a leak or two from the window . Hard to tell but there are some streaks there.
     
  14. Mar 28, 2022 at 2:59 PM
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    Ellis_McPickle

    Ellis_McPickle New Member

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    Park in the garage or wait till night and use a flashlight held inside the cap to identify leaks. Then try to fill as best you can. It probably won't be 100% but should be a lot better.
     
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  15. Mar 28, 2022 at 8:23 PM
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    LTR9

    LTR9 [OP] New Member

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    shit, didn’t even notice the leak from the window.
     
  16. Mar 28, 2022 at 9:14 PM
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    TunsofFon

    TunsofFon New Member

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    My used cap on my old 2002 Tundra was almost bone dry. I ordered and waited around 4 months for the cap to my 2021 to arrive. Living in Oregon, I quickly found out the new cap/truck combo leaked like a sieve. I took it back into the dealer for that and another issue. It was on this second visit that I was informed most newer trucks leak because water can find it’s way up and through the plastic bed rail caps on most of todays trucks. Why this information was not presented to me before install or during my 4 month wait, I’m not sure of. When it gets warm and dry enough around here I plan on pulling the bed rail caps up to seal it all up. I read somewhere that on top of putting down a sealant, it may be a good idea to cover any stamped holes on top with aluminum duct tape or similar.
     
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  17. Mar 28, 2022 at 9:20 PM
    #17
    LTR9

    LTR9 [OP] New Member

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    I was told something similar. It’s about a 2 hour RT drive and $60 to go back to the dealer for me. At this point I’d rather just fix this myself. So my budget is $60, and about 2 hours of my time or more. How do I seal this cap. One and done correctly.
     
  18. Mar 29, 2022 at 3:26 AM
    #18
    timsp8

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    LTR9 [OP] likes this.
  19. Apr 12, 2022 at 2:22 PM
    #19
    LTR9

    LTR9 [OP] New Member

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    Update.

    turns out it wasn’t installed correctly, or tightened enough. The cap slid back just enough to have a small gap for water to enter. They fixed it. All good!
     

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