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Mobile mounted, trunk seal leaks now?

Discussion in 'CB Antennas' started by Cutlass327, Dec 4, 2019.

  1. Cutlass327

    Cutlass327 Active Member

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    I'm hoping someone on here has a good minimally invasive solution here.

    I have a 2010 Focus, and I have mounted my Lil Wil on the trunk lid, running the coax down the front edge into the trunk then up to the radio. The issue I have is going thru the car wash the other day I had a lot of water get in, as the coax is not letting the trunk seal work properly. I figure if the car wash can get in there, this winter the melting snow will make it in too.



    Is there a way to run the coax that I do not have to worry about leaks?
     

  2. Tallman

    Tallman W9WDX Amateur Radio Member, KW4YJ EXTRA class

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    Need a through the sheet metal type of mount. A cable from the magmount will cause the gasket not to seal.
     
    binrat likes this.
  3. binrat

    binrat WDX Club Coordinator
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    Re-route your coax or as stated by TM, cut a hole. If it was me, I would try re routing first but would have the hole saw and another mount handy.
     
  4. midnight special

    midnight special Well-Known Member

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    magmount=always a water leak,,, hard mount it,,,,
     
    binrat likes this.
  5. Woody-202

    Woody-202 Well-Known Member

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    My Son has a Focus with a Mag mount antenna. He had to put his mount towards one of the trunk corners (I don't remember which one) to avoid water in the trunk. My other Son had some leak issues (not a Focus), didn't care about how anything looked, and ran the coax from his mount over the side and in thru the rear passenger door...;)
     
    S&W357, Tallman and 2NC995 like this.
  6. Mudfoot

    Mudfoot Sr. Member

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    Drill a hole and put a REAL mount on. Holes do not affect resell value, unless you do it wrong. You can also cut a hole in the seal itself and dab some sealer around the cable, then reinstall PL. Replacement seals are cheap and easy to replace.

    You can also remove the seal and cut a tab out of the sheet metal seam. The cable will rest in the cutout nicely, then replace seam.
     
  7. Tallman

    Tallman W9WDX Amateur Radio Member, KW4YJ EXTRA class

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    That's how I run mine with the exception my antenna is on the roof.
     
    Woody-202 likes this.
  8. Shadetree Mechanic

    Shadetree Mechanic 808 On The North Side of Dover

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    If the coax is long enough, you can run it along the edge of the trunk outside of the seal and down to the lowest point. Then turn the coax and bring it up across the seal. This way if water runs down the coax, it will go down to the drip loop and not turn the corner with the coax to go into the seal. Might even be able to tuck it under the outside of the seal on its way to the bottom.
     
  9. jessejamesdallas

    jessejamesdallas Sr. Member

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    Years ago (I'm talking mid 70's) Trunk lip mounts were very popular...What you had to do was run the coax behind the weather stripping next to the channel where the rain would run down....Sometimes you could pull the weather stripping up enough to stick the coax sorta under it...then maybe use some black silicon to help hold it in place...

    Run the coax from the mount, all the way down to the bumper, then go back into the trunk compartment at the bottom...then route the coax around the side fenders and back to the front.

    This would require a lot more than 18' of coax to do it right, but you won't have any water issues.

    other option is to get the drill out...
     
  10. Blackcat630

    Blackcat630 Sr. Member

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    I will echo what pretty much everyone else said.. drill. If you do choose to go this route and buy a decent through hole mount while your at it just drop the headliner and do it right the first time. A permanent roof mount sirio will whip a mag mount on the trunk anyday. If height is a concern then disregard my advice.. Good luck & 73
     
    binrat likes this.
  11. Mudfoot

    Mudfoot Sr. Member

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    Only hard roof mount I'd avoid, is the K40. It is absolute junk and will fail.
     
    midnight special likes this.
  12. Cutlass327

    Cutlass327 Active Member

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    Thanks for the tips.

    I will say, the tip Mudman said of putting the coax thru the seal is an idea. It isa Wilson, and they use that 2-pc PL connector design I love, unscrew the big piece and fish the smaller part thru a smaller hole. I could probably stretch a small hole over the small end, so it seals tight to the coax itself.

    Otherwise, I may extend it and run it thru a different location, maybe find a way to go in behind the taillight thru the wiring grommet.
     
  13. unit_399

    unit_399 EL CAPO

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    I always did it this way.
    Pull the rubber trunk seal loose around the area where you want the coax to pass through. Use a rat-tail file or a Dremel to cut a slot in the trunk seal lip on the body. Cut the slot deep enough so it extends below the seal when it's reinstalled. Put the coax in place, and seal around it with silicone sealer. Reinstall rubber trunk seal and you're good to go.

    seal.png



    - 399
     
  14. Mudfoot

    Mudfoot Sr. Member

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    Yep, that's what I do. Works out great.
     
    Slowmover likes this.

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