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Thread: Heater tube mystery/ where am I NOT looking??????

  1. #1
    Supramania Regular
    Koenigturbo's Avatar
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    Question Heater tube mystery/ where am I NOT looking??????

    I feel like a total idiot for even asking: I'm removing the heater tube that is behind the exhaust manifold and runs from the block and thermostat housing to the feed and return line from the heater. I can see the top tube goes to the top of the head and the bottom line is a the mystery where I can't see the other end and where it is supposed to be attached heater. I've looked with a mirror from the passenger side and all I see is the hose clamp but can't pass that, where it is suppose to be hooked up to the heater core. I thought for sure it was bolted to the head. From I heard it's pretty much impossible to get to. Explain to me how far from the exhaust manifold to the connection I'm looking for, two or three inches? Please help,.. I'm a idiot newbie.

    Thanks!!!
    Last edited by Koenigturbo; June 18th, 2017 at 09:56 AM.

  2. #2
    Dang Dude! No Way Man.
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    Default Re: Heater tube mystery/ where am I NOT looking??????

    The head port inline with the spark plugs typically goes to the heater valve on passenger side and then to heater core inlet on passenger side.

    The drivers side heater core inlet goes to the drivers side of the head underneath where the egr would be.

  3. #3
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    Default Re: Heater tube mystery/ where am I NOT looking??????



    Does this help?


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  4. #4
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    Default Re: Heater tube mystery/ where am I NOT looking??????

    Wow not only does this help, thats my answer, how luck of me for you to have a picture this clear so i can understand it, clear picture, luck for me you just happened to have a engine on a stand!!!

    thanks!!!!!!!!!!!!!!!!!!!

  5. #5
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    Default Re: Heater tube mystery/ where am I NOT looking??????

    If you have a older 7m motor, you may have a extra port on the lower return heater pipe (right below the 90 degree rubber hose on the passenger side) that needs a rubber cap so its blocked off. It was a universal design for RHD and LHD Supras as the heater hose routing was different for both.
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  6. #6
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    Default Re: Heater tube mystery/ where am I NOT looking??????

    I'm gonna assume there is NO WAY possible to remove this without removing the head or pulling the engine, I'm I right???

  7. #7
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    Default Re: Heater tube mystery/ where am I NOT looking??????

    Here is a photo of what plaaya69 is referring to.
    DSCF0028.jpg
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  8. #8
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    Default Re: Heater tube mystery/ where am I NOT looking??????

    Quote Originally Posted by Koenigturbo View Post
    I'm gonna assume there is NO WAY possible to remove this without removing the head or pulling the engine, I'm I right???
    No, I installed mine after the head when doing my head gasket.
    Quote Originally Posted by supraman7mgte View Post
    I kept asking myself while i was taking the bumper apart,"why do i keep doing this?" I replied,"because my therapy makes me happy"

  9. #9
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    Default Re: Heater tube mystery/ where am I NOT looking??????

    on the car? if you did please tell me more please, right now I dont see it, mechanicly I'm pretty good, apparently not as good as you guys,. I thought I'd stretch it over the top,. I just don't have experience as you guys do,...Thanks!!


    Quote Originally Posted by MK3pizzadriver View Post
    No, I installed mine after the head when doing my head gasket.
    Last edited by Koenigturbo; June 25th, 2017 at 05:15 PM.

  10. #10
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    Default Re: Heater tube mystery/ where am I NOT looking??????

    Shoot my bad I actually can't remember lol. Someone more experienced will chime in, hopefully.
    Quote Originally Posted by supraman7mgte View Post
    I kept asking myself while i was taking the bumper apart,"why do i keep doing this?" I replied,"because my therapy makes me happy"

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