help. leaking coolent from back of block. not heater core...

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • call me jack
    E30 Addict
    • Jul 2010
    • 425

    #1

    help. leaking coolent from back of block. not heater core...

    I'm leaking a lot of coolant out of the back of my engine block. it seems to be coming from a bolt on the back of the head, next to the fire wall. can any body elaborate more on whats leaking, and what i can do to fix it.... i can't seem to tighten the bolt any more.
  • jlevie
    R3V OG
    • Nov 2006
    • 13530

    #2
    If this an M20 engine, the leak is either from the heater hose fitting on the rear of the head or from a failed head gasket. Of those the heater hose fitting is the more likely. You'll need to remove that fitting, check to see if it is still good, and re-install it with a new gasket.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

    Comment

    • call me jack
      E30 Addict
      • Jul 2010
      • 425

      #3
      Ok. i'll do some more poking around, but it really seemed like it was leak from one the the 3 bolts on the back of the head. But i agree. my car has 120k miles on it, i can't see it been the head gasket.

      Just for the record though, does any one know what those 3 bolts are for?

      Comment

      • jlevie
        R3V OG
        • Nov 2006
        • 13530

        #4
        An M20 head only has two bolts on the back that secure the heater hose fitting. If this isn't an M20 engine it could be different.
        The car makes it possible, but the driver makes it happen.
        Jim Levie, Huntsville, AL

        Comment

        • call me jack
          E30 Addict
          • Jul 2010
          • 425

          #5
          Originally posted by jlevie
          An M20 head only has two bolts on the back that secure the heater hose fitting. If this isn't an M20 engine it could be different.
          thanks. i couldn't see, i was just feeling around. thats probably what's leaking.

          Comment

          • call me jack
            E30 Addict
            • Jul 2010
            • 425

            #6
            ok, can any tell me if theirs a trick to getting the intake manifold off? whats the deal with that weird brace right about the engine mount?

            I didn't want to make a new thread for such a simple question.

            Comment

            • jlevie
              R3V OG
              • Nov 2006
              • 13530

              #7
              The trick to getting the intake manifold off is to slide the oil return tube under the manifold down into the block (against the spring).
              The car makes it possible, but the driver makes it happen.
              Jim Levie, Huntsville, AL

              Comment

              • AnimalE30
                Wrencher
                • Aug 2009
                • 266

                #8
                If you didn't know already, the easiest way to get the oil return tube back in is to zip tie the spring and insert it into the block - put the intake manifold back on and then snip the zip tie and make sure the two o-rings seat correctly.

                Comment

                • call me jack
                  E30 Addict
                  • Jul 2010
                  • 425

                  #9
                  i got the issue figured out.... my actual probelm was that i had left a bolt on the manifold lol it was in plane few too

                  Comment

                  Working...