open hood vents anyone?

  1. Whiteknight

    Whiteknight Active Member

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    Has anyone opened the hood vents to let more heat escape from under hood? If so any water problems with rain or snow? Thanks.
     
  2. Blade1668

    Blade1668 Well-Known Member

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    I've not done it to my JT but have done it on 2 other Jeeps. Rain and snow not a problem really, birds, squirrels and like things were and are a problem. So it depends on how open the vents are.
     
  3. ACAD_Cowboy

    ACAD_Cowboy Well-Known Member

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    The rubicon hoods are supposed to be open but with shielded vents so air gets out and debris stay out.
     
  4. Jim_n_Tx

    Jim_n_Tx Active Member

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    No problem yet (have driven in the rain). Did waterproof battery connections and discarded felt battery cover.

    IMG_0319.jpg
     
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  5. OP
    OP
    Whiteknight

    Whiteknight Active Member

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    Thanks, just removing the heat shield under the hood and cutting out the plastic under stock vents on a Launch Edition like a Rubicon hood is all. No plans to make something to accommodate a blower or any major cut outs:) Any problems arise will post warnings. Hope no posts will follow.
     
  6. Gatorized

    Gatorized Well-Known Member

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    Any pictures of the vents from under the hood with the heat shield removed?
     
  7. bgenlvtex

    bgenlvtex Well-Known Member

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    Since Jeep struggled to keep engine temps down, in an effort to get tow ratings up, I have to assume that any additional cooling benefits that may be gleaned are nullified by the effort required, since the factory hood is not vented.
     
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  8. TheWingman

    TheWingman Active Member

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    Often more holes makes cooling worse, as it directs the path of cooling air out a channel it wasn't intended to go, creating an air short and keeping cool air away from components that survive on that cool air. This would be especially true for low speed, high load applications (what jeeps are made for) where the only high pressure air inside the engine bay is created by the fan. Poking holes in the hood just lets the pressure escape, making everything aft of those holes hotter as a result.
     
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  9. OP
    OP
    Whiteknight

    Whiteknight Active Member

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    Thank should have kept my trust in the engineers.
     
  10. OP
    OP
    Whiteknight

    Whiteknight Active Member

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    Do not remove heat shield from under engine compartment hood. It is there, as someone on this forum has stated, to protect paint from pealing bubbling or melting (du yeah, as I will be crawling in Moab, maybe hot huh), and the metal of the hood would also get very hot, AND the plastic vents may melt as well on the Rubicon and Mojave, airflow and waterflow was designed with the shield in place too, so it would again make it hotter under the hood and water sitting on certain parts may cause damage. The plastic push retainers are over $4 each so that would also divert funds for other alterations. There are more reasons which help keep the air moving around the engine, so I hope these reasons are enough to stop anyone from doing this. Hope this will save someone from possible troubles on the trails. Wave Wave.
     
  11. Jim_n_Tx

    Jim_n_Tx Active Member

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    I'm no engineer but, if the purpose of the hood heat shield is to keep engine heat from the aluminum hood and it's paint and plastic elements, why is the reflective side of it on the top (hood side) instead of the bottom (engine side)? BTW, Dorman 963-086D Panel Push Retainers work to reattach the shield (77ยข each at O'Reilly Auto Parts.)
     
  12. OP
    OP
    Whiteknight

    Whiteknight Active Member

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    I thought the same thing. When using aluminum foil shinny side reflects heat, why reflect to side you want o protect. This comes from MOPAR so that's the reasoning I quoted. Aluminum great way to distribute heat. Melt plastic? Why use it. Nice banter and what I think is sense. Keep conversing the conversation. Love my Gladiator and my JK, till death till we part.
     
  13. whiteglad

    whiteglad Well-Known Member

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    I opened the hood vents on my JK Recon. I noticed no temperature difference at all, but dirt, etc. did get in.
     
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