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Very HOT under hood temperatures

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    #1

    Very HOT under hood temperatures

    This related to my brothers 1993 ex 5 speed coupe

    One day he told me the engine bay was very hot. So hot he couldn't get the oil cap off.

    We figured the problem was caused by his exhaust leak ( Now before you think that couldnt cause it read on )

    Today we replaced the exhaust and found out all 3 bolts on the exhaust manifold to downpipe connecton had backed their way off so it was completly disconnected putting hot exhaust gases right into the engine bay

    We replaced the whole exhaust today and now his car is as quite as stock

    We got home and the engine bay is REALLY hot. The car isnt over heating though.

    What would cause this?
    Tags: None
    #2
    does the fan come on? we need numerical figures. hot can be 104 degrees like in vegas or 400 degrees to bake my pizza.

    get a non contact pyrometer and shoot it at the metal coolant housing, the one that connects with the upper rad hoses.
    I <3 G60.

    0.5mm Oversized Stainless valves and bronze guides available. Pm me please.

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      #3
      do you have the heat shield over the exhaust?
      that can cause the temperature inside the hood to rise
      most people think the heat shield doesnt help but it does


      90 accord lx
      form > function

      Member's Ride Thread

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        #4
        Originally posted by wed3k View Post
        does the fan come on? we need numerical figures. hot can be 104 degrees like in vegas or 400 degrees to bake my pizza.

        get a non contact pyrometer and shoot it at the metal coolant housing, the one that connects with the upper rad hoses.
        I do not have an exact temperature reading but i can say that the valve cover and oil cap expanded enough to make it impossible to remove the oil cap lol

        Originally posted by jerry18849 View Post
        do you have the heat shield over the exhaust?
        that can cause the temperature inside the hood to rise
        most people think the heat shield doesnt help but it does
        The sheild was on the car before we swapped exhausts. When we took it off all 3 bolts broke off so we didnt bother drilling the holes out and installing it.

        The sheild is missing now but its MUCH hotter then my car. My car also lacks a sheild


        If the car isnt overheating then where else could the heat be comming from?

        ( i will take a temperature gauge to it later )

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          #5
          does the fan come on after a drive?

          Comment

            #6
            Originally posted by GenDBlade View Post
            does the fan come on after a drive?
            Haha funny story. After we got back home from driving on the highway ( fans off the whole time ) we get out of the car to inspect the under good temperatures. Right as i tough somthing the fan kicks on and apperently we left somthing just slighty in the fan. So the fan turns on making this horribly loud sound because this wire brush handle is partially stick in it lol

            So to answer your question: yes the fan turns on after you turn the car off. You have to wait about 5 minutes before it comes on though. Well 1-5

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              #7
              I did the "HOOD LIFT" that most "ricers" are doing now.

              Supposedly it lets the engine cool faster by letting the engine bay air relief near the windshield wipers.

              Simple task: open hood, on the HOOD side, remove bottom bolt, add washer between hinge and hood, put in bolt, repeat to the other side, and BAM! Lifted hood!

              MRT

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