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Thread: T-Stat Question

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    I am a chapter of one sincitycj's Avatar
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    Default T-Stat Question

    Now that the temps here are pushing 110+ the CJ is starting to run a bit hot, but not to the point of over heating. I'm pretty sure it's being caused by the t-stat not opening like it should, so just to eliminate that I'll be replacing that in the morning. I was thinking of running a 160 degree as opposed to the 180 I've been running. I'm thinking that with it opening earlier it would help cool it down that much sooner. What do you guys think?
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    Got Beer airforce26yrs's Avatar
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    With those high of temps I really do not think it will do any good. I don't think you get any more flow through it then a 180 so once it heats up I think it would be the same. I could be wrong though. Isn't there an electric fan mod for the CJ7, or different fan for more air flow across the radiator?

    Possibly blocked radiator passages?
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    I am a chapter of one sincitycj's Avatar
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    Quote Originally Posted by airforce26yrs View Post
    With those high of temps I really do not think it will do any good. I don't think you get any more flow through it then a 180 so once it heats up I think it would be the same. I could be wrong though. Isn't there an electric fan mod for the CJ7, or different fan for more air flow across the radiator?

    Possibly blocked radiator passages?
    I've already got electric fans in there and the rad is brand new. I was just thinking that an earlier opening of the t-stat might help a bit.
    Quote Originally Posted by usnavymitchells View Post
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    Got Beer airforce26yrs's Avatar
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    Quote Originally Posted by sincitycj View Post
    I've already got electric fans in there and the rad is brand new. I was just thinking that an earlier opening of the t-stat might help a bit.
    Try it and see what happens, can't hurt and they are cheap enough. Plus it does not get that cold in the winter there that it would affect your heating ability.
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    Got Beer airforce26yrs's Avatar
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    You could also just take it out completely. I did that on a '79 vette in Florida, worked good until I went to Mich over X'mas, froze my ass off.
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    Junior Member Kevo's Avatar
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    I was going to suggest for hot climate areas, I would remove it for 3 seasons. I would want mine cooling at max 24/7 in those temps.

  7. #7
    I am a chapter of one sincitycj's Avatar
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    I considered removing completely, except I tried that on an El Camino I had when I first got out and that actually caused it to overheat because the coolant couldn't stay in the rad long enough to cool down.
    Quote Originally Posted by usnavymitchells View Post
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    Zombie Slayer... JoeySnow70's Avatar
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    Quote Originally Posted by sincitycj View Post
    I considered removing completely, except I tried that on an El Camino I had when I first got out and that actually caused it to overheat because the coolant couldn't stay in the rad long enough to cool down.
    I went through the same situation without t-stat. The 160 made my fans cycle more frequently than the 180. The only thing that got my temp to a stable 190 was Water Watter, before that it hovered arround 200....

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    Senior Member HillBillE's Avatar
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    Quote Originally Posted by sincitycj View Post
    I considered removing completely, except I tried that on an El Camino I had when I first got out and that actually caused it to overheat because the coolant couldn't stay in the rad long enough to cool down.
    Yep, in temps like you have, you need to have something.

    A 160 should help, it'll cycle more, but the fluid in the rad will have time to cool before it opens.

    I've heard good things about that 'Water Wetter' stuff, but have never used it myself.


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  10. #10
    I am a chapter of one sincitycj's Avatar
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    Quote Originally Posted by HillBillE View Post
    Yep, in temps like you have, you need to have something.

    A 160 should help, it'll cycle more, but the fluid in the rad will have time to cool before it opens.

    I've heard good things about that 'Water Wetter' stuff, but have never used it myself.
    I've been using water wetter for a while and have been happy. It does seem to make it cool a little better. I ended up getting a 180. No one around here had the 160. I did turn the temp down on my fans so they come one earlier. I guess we'll see.
    Quote Originally Posted by usnavymitchells View Post
    went to google to see if I too was a dumb ass!!! Well actually I am.

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