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Coating Spark Plug Wire Bars

Discussion in 'Early CJ5 and CJ6 Tech' started by FinoCJ, Jan 18, 2017.

  1. FinoCJ

    FinoCJ 1970 CJ5 Staff Member

    Was cleaning and looking at my spark plug wire bars - there is an insulating coating on the wire holders that is starting to deteriorate. I of course started to mess with it and ended up pretty much taking off much of the insulating material. It kind of reminded me of a hardened plasti-dip type material - was think of stripping them totally clean and dipping them (or maybe spray coating them) in some sort of insulating coating....Any suggestions? I think the biggest issue is ensuring that it can withstand the higher temps of an engine bay.

     
    FinoCJ, Jan 18, 2017
    #1
  2. jwmckenzie

    jwmckenzie Sponsor

    I cleaned mine off painted them and then dipped the wire holder tips in Performix. Plasti Dip.

    Had to make a tray, but it worked.
     
    jwmckenzie, Jan 18, 2017
    #2
    Unkel Dale and FinoCJ like this.
  3. Focker

    Focker That's a terrible idea...What time? Staff Member

    That's what John did...I learned a lot from his thread.

    My 67 CJ5 build
     
    Focker, Jan 18, 2017
    #3
    FinoCJ likes this.
  4. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Plasti-dip is rated to 200ºF, or some say 312ºF, but a lot of people say it can go higher. It is often used on exhaust tips.
     
    PeteL, Jan 18, 2017
    #4
    FinoCJ likes this.
  5. FinoCJ

    FinoCJ 1970 CJ5 Staff Member

    Thanks guys - that will work perfect. Will try to get some of it on to the wire holders on the valve covers as well.
     
    FinoCJ, Jan 18, 2017
    #5
  6. Rick Whitson

    Rick Whitson Detroit Area 2024 Sponsor 2022 Sponsor

    Would Hi Temp Silicone work? You might be able to coat them with it and let it dry with a greased bolt in it to shape it? Just something to consider.
     
    Rick Whitson, Jan 19, 2017
    #6
    ojgrsoi likes this.
  7. Bill Schmidt

    Bill Schmidt New Member

    I'm looking for a pair the plug bars for my 66 dauntless. Considering making some out of some common steel. any thoughts
     
    Bill Schmidt, Sep 26, 2018
    #7
  8. Focker

    Focker That's a terrible idea...What time? Staff Member

    Focker, Sep 26, 2018
    #8
  9. 70cj5134f

    70cj5134f Member

    I almost bet good wires won't arch anyway?
     
    70cj5134f, Sep 26, 2018
    #9
  10. colojeepguy

    colojeepguy Colorado Springs

    They shouldn't, but there's always the issue of them getting burned on the exhaust manifold. Also, there's something called inductive cross fire. A wire with current going through it can induce voltage in another wire close to it. If that's enough to fire the wrong plug, it can cause problems depending on where that cylinder is in it's cycle.
     
    colojeepguy, Sep 26, 2018
    #10
  11. Bill Schmidt

    Bill Schmidt New Member

    Focker - thanks for the pic - I'd seen this on a previous research I'd done and I'll use it as the pattern to make mine from. Main thing is to keep the wires away from the exhaust manifolds.
    I just ordered an EZ wire harness for upgrading the electrical from old to new. That'll be a good rainy season project for the garage. REbuilding the transmission and T case this winter also.
     
    Bill Schmidt, Oct 23, 2018
    #11