Removing old engine... putting in another m20

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  • Fuddy
    Advanced Member
    • Oct 2003
    • 123

    #1

    Removing old engine... putting in another m20

    the engine I'm going to install is from an automatic.... my brother says there has to be something changed or pulled out from the automatic before it can be mated to the maual tranny I have.

    Is this true? Does the flywheel have to be changed?

    TIA
  • Bill 84 318i
    E30 Mastermind
    • Oct 2003
    • 1600

    #2
    Yeah - you have to swap flywheels (and clutch assembly and stuff) and put a pilot bearing assembly in there.

    Are you doing it at a shop or what?

    Comment

    • Fuddy
      Advanced Member
      • Oct 2003
      • 123

      #3
      Originally posted by Bill 84 318i
      Yeah - you have to swap flywheels (and clutch assembly and stuff) and put a pilot bearing assembly in there.

      Are you doing it at a shop or what?
      yeah, my nephew's godfather has a shop... I took apart the engine myself to get it ready for pulling...

      we're pulling it today...

      just waiting for my new clutch, belts and other shit to come in... already changed the timing belt on the new engine


      so I need a new pilot bearing huh?

      Comment

      • Bill 84 318i
        E30 Mastermind
        • Oct 2003
        • 1600

        #4
        Well, the crankshaft on the automatic engine isn't gonna have a pilot bearing in the end of it.

        I guess you could use your old one if it's in decent shape, but it's real cheap new.

        Comment

        • Digitalwave
          is a poseur
          • Oct 2003
          • 6282

          #5
          Just unbolt the auto tranny, torque converter, flywheel, etc. Disconnect all the tranny cooling lines. Disconnect the tranny fluid dipstick from the engine block. Then you should be set.

          Now would be a good time to replace your clutch, replace all the tranny seals (and the rear main engine seal, maybe oil pan gasket), all the good stuff.

          RISING EDGE

          Let's drive fast and have fun.

          Comment

          • e30evolution
            West Werks
            • Oct 2003
            • 1888

            #6
            autos dont have flywheels... it is called a flex plate... so you arent changing the flywheel.... you are replacing the flex plate with a flywheel

            but yes that is all you have to do

            http://www.westwerksauto.com

            Comment

            • 318driver
              E30 Mastermind
              • Nov 2003
              • 1714

              #7
              why are you swapping engines?
              90 325is
              IE stage 3s and refeshed m20....

              Comment

              • Pat W
                Grease Monkey
                • May 2004
                • 321

                #8
                whats wrong with the old engine.....maybe i could get some parts for my 2.7i buildup for my E.... :D
                JDM no more

                Comment

                • Fuddy
                  Advanced Member
                  • Oct 2003
                  • 123

                  #9
                  Originally posted by 318driver
                  why are you swapping engines?
                  either a busted piston, or messed up head... don't know yet...

                  and my car is stick, the engine I'm getting is from an auto...

                  I paid 800 for an 80k engine

                  doing the clutch while I got the engine out

                  Comment

                  • Fuddy
                    Advanced Member
                    • Oct 2003
                    • 123

                    #10
                    Originally posted by Jdm
                    whats wrong with the old engine.....maybe i could get some parts for my 2.7i buildup for my E.... :D
                    the head may still be good, won't know until I take it apart

                    Comment

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