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coolant leak

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    #1

    coolant leak

    hey guys i have a 93 ex with a h23. a few days ago i was replacing lower ball joints. i noticed a few drops of coolant under the car. i go under the car and i see theres a drop of coolant on my oil filter.

    im pretty sure it isnt the head cause the coolant wasnt contaminated. im just wondering if theres any hoses i should look at. the car dosent overheat.
    any suggestions?
    thanks

    -steve
    Tags: None
    #2
    I'm not sure about the H23 but the F series has coolant hoses that go to the throttle body that could cause coolant to go down the backside of the engine it they were leaking. Crank the car so the cooling system is under pressure and run your hands around all of the hoses and check for leaks.

    Comment

      #3
      its kinda weird cuz it wasnt leaking today. i checked a few times and didnt see any coolant leaking. it leaked a few drops on tues.

      Comment

        #4
        Originally posted by hovo1788 View Post
        its kinda weird cuz it wasnt leaking today. i checked a few times and didnt see any coolant leaking. it leaked a few drops on tues.
        If you have an oil cooler on your car (under the oil filter assembly) then there is an o ring for oil control and an o ring for coolant control in there. If so that's in the perfect place to get coolant as you described. However I would suspect that your oil would get contaminated, or your coolant would be contaminated.

        Check the coolant in the radiator and see if there's an oil slick on it. Of course, after the car has been parked overnight.

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          #5
          well i looked under the car today and i saw a drop of coolant on the oil filter. but is was dried out. i also saw a hose running to the top of the oil filter assy. i dont know if thats what you were talking about.

          what would contaminated coolant or oil look like?

          Comment

            #6
            On the oil cooler assembly, its not possible for oil and coolant to mix
            The water jacket is seperate from the oil main.
            If the oil cooler gasket blows, engine oil goes everywhere.
            However its is very possible and most likely that the oil cooler hoses are about to burst.
            The hoses to the oil cooler are directly connected to the engine block/cylinder sleeve section.
            So if one of these burst the engine block and radiator will drain in about 15 seconds.
            Its also very unlikely anyone has changed them.


            If its leaking on the back another posibility is the water pipe O-rings.
            You know how O-rings fall apart...
            I had a new one break when I installed it!
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              #7
              Originally posted by CB7Man View Post
              On the oil cooler assembly, its not possible for oil and coolant to mix
              The water jacket is seperate from the oil main.
              If the oil cooler gasket blows, engine oil goes everywhere.
              However its is very possible and most likely that the oil cooler hoses are about to burst. The hoses to the oil cooler are directly connected to the engine block/cylinder sleeve section.
              So if one of these burst the engine block and radiator will drain in about 15 seconds.
              Its also very unlikely anyone has changed them.
              Good info. My own engine (F22A) doesn't seem to have an oil cooler as I just tried to get in there to replace the o ring last week and there's nothing to remove under the oil filter.


              If its leaking on the back another posibility is the water pipe O-rings.
              You know how O-rings fall apart...
              I had a new one break when I installed it!
              I agree with CB7Man that replacing the water pipe 0-rings sounds like a good idea. I believe there is one right above, or nearly above, the oil filter, as well as to the left of it on the water pipe coming out of the water pump on the front left of the engine.

              Comment

                #8
                funny thing... my whole coolant hose blew and my engine said it wasnt overheating make sure one of the hoses isnt leaking mine just had a crack on the back side which made it less noticeable.. your gonna wanna not drive it until you find the problem or you may not have an engine

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