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Engine block heater

Discussion in 'Intermediate CJ-5/6/7/8' started by High5, Oct 13, 2005.

  1. Oct 13, 2005
    High5

    High5 Member

    Urbandale, IA
    Joined:
    Jan 13, 2005
    Messages:
    802
    Does anyone in the northern portion of the country have an engine block heater on their 258???
    I'm looking into putting one in for the winter.'

    Thanks in advance,

    High5:stout:
     
  2. Oct 13, 2005
    The Wizard

    The Wizard Member

    Colorado...
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    Jul 12, 2005
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    179
  3. Oct 13, 2005
    Michaelo

    Michaelo Member

    Neodesha, Kansas
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    Sep 21, 2002
    Messages:
    90
    Not quite in the northern portion but i have installed 2 on 258s. I like them because it helps with my cold blooded carb. It really isn't a big job to do and they are cheap.
     
  4. Oct 13, 2005
    The Wizard

    The Wizard Member

    Colorado...
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    Jul 12, 2005
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  5. Oct 13, 2005
    MOP

    MOP Active Member

    Pullman, WA
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    Sep 25, 2003
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    1,131
    I have a coolant hose type heater. I don't use it much here in KS, but it works well when I do. They are pretty cheap.
     
  6. Oct 13, 2005
    cam saure

    cam saure Member

    Joined:
    Oct 5, 2005
    Messages:
    129
    Yes. IMHO the block core plug/frost plug type heaters are the way to go. It does get cold at times up here in ND, so I have tried all types. They not only aid starting, but on really cold days you must remember how thick your oil can be so you have almost no lubrication. They also help to ease the strain on your battery and starting system. The lower radiator hose type work fairly well except you are also wasting a bit more energy trying to heat the coolant in the radiator. The tank types also work OK but some installations cause a loss of output of your interior heater. I have always considered the heater in my CJ5 to be a good "hand warmer":) , therefore you need all the heat output you can get. Another advantage of the "block type" heaters is there are no extra hoses and connections to cause problems in the future. Just my opinion, Cam
     
  7. Oct 13, 2005
    High5

    High5 Member

    Urbandale, IA
    Joined:
    Jan 13, 2005
    Messages:
    802
    Installation???

    How do you get the freeze plug out and install the new one? I'm not a mechanic by tradeR)
     
  8. Oct 13, 2005
    Michaelo

    Michaelo Member

    Neodesha, Kansas
    Joined:
    Sep 21, 2002
    Messages:
    90
    I pretty much got a pipe and knocked it out. Most of the ones i've done is just hit them with a hammer and pull them out
     
  9. Oct 13, 2005
    MOP

    MOP Active Member

    Pullman, WA
    Joined:
    Sep 25, 2003
    Messages:
    1,131

    That's the part I like. The placebo heater is immediately warm at start-up, so your defrost/heater works right away.
     
  10. Oct 13, 2005
    cam saure

    cam saure Member

    Joined:
    Oct 5, 2005
    Messages:
    129
    First you need the correct heater for your application. Then drain system. The instructions that come with your heater will specify which core plug is the best one to install the heater into. Take a punch and hit the plug near the edge(not on the rim). You want the plug to sort of rotate or swivel so to speak in the hole so you can get hold of it with a channel lock or vise grip. Then yank it out. You don't want to hit the center of it or there is danger of knocking it into the inside of the water jackets. That is why you hit towards the edge. I have run across quite a few blocks on various vehicles that did have an old core plug inside them. A lot of people will tell you that this is harmless. But just think if it was wedged beteen a cyl wall and the outer block, it could create a small hot spot in that cylinder. You would probably not notice this, but who knows. Anyway clean the hole and apply a little sealant to the heater and place into block in recomended position. The heater will have an O-ring for a seal and is held in place with a sort of toggle bolt or screw that you tighten to secure it. Then install the cord and secure it to prevent damage to it. It isn't really a very hard installation at all and well worth it. Well worth it up North anyway. Cam
     
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