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How hot does it get?

Discussion in 'Intermediate CJ-5/6/7/8' started by sac13, Jan 16, 2007.

  1. sac13

    sac13 Come oooonnnnn summer....

    I removed my poorly designed (and rotten) paper defrost duct and ordered a new one this weekend. After driving for about 30 minutes without it, my radio started acting up. After sitting for a bit, it won't even turn on now. Here is what I'm wondering: Since I removed the duct, the hot air bleed from the heater through the defrost opening in the unit shoots directly onto the back of the radio. Does the heat get hot enough to melt something in the radio? I'm going to remove the radio and bench test it tonight but I was just wondering.......
     
  2. scaryjosh

    scaryjosh Member

    Re: How hot do it get?

    it very well might be your problem. run the radio with out the motor going and see if it still does it that should tell you it the heat is doing it, and if it dont turn on you may have blowen or melted something inside. a multimeater and a testing power supply seem to be in order

    good luck

    josh
     
  3. Code Red

    Code Red Member

    Re: How hot do it get?

    Mine won't melt an ice cream cone....
     
  4. scaryjosh

    scaryjosh Member

    Re: How hot do it get?

    dang...:rofl: thats no good, well atleast you have one i took my heater core out and havent put it back in yet ... :cry:
     
  5. sac13

    sac13 Come oooonnnnn summer....

    Re: How hot do it get?

    I got really lucky. It's about the only thing the PO had working (that sound you hear is me knocking on wood). Even on 20deg days, it kicks out mega heat. I managed to get all the door's unstuck and the cables free'd up. Does anyone have any expirience with the aftermarket floor ducts that supposedly just attach to bottom of the existing unit? It would be nice to have the heat directed at my feet instead of keeping the shifter warm!!

    The more I think about it, the more I think I fried something in the back of the radio. I will find out tonight!
     
  6. LostDawg

    LostDawg Slowly rusting in the NW

    Re: How hot do it get?

    It's possible that you did fry something from the heater flow, but that seems somewhat suspect. The reason I say that is, is your heater output hotter than the inside of a black car that's been sitting in the sun for hours in the Las Vegas summer? :? (Now THAT'S hot!)
    Good luck with the bench test, tho.
     
  7. 2pwrlftrs4u

    2pwrlftrs4u Member

    Re: How hot do it get?

    bwahahaha and i thought i was the only one R)
     
  8. w3srl

    w3srl All-around swell dude Staff Member

    The usual culprit will be a power transistor that uses the back of the radio case for a heat sink...
     
  9. jeepen

    jeepen Member

    I have cked the duct temp on my 93 GMC and it is about 120 to 130
     
  10. sac13

    sac13 Come oooonnnnn summer....

    Well, it's official. My radio is toast (literally!). I bench tested it and it won't power up. I'll tear it apart and see if anything looks obvious, if not, it's time to go shopping........