M20 seized?

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  • bastianshaw
    R3VLimited
    • Jan 2007
    • 2210

    #1

    M20 seized?

    Looking at a car on cl. Dude says the motor is frozen but has always run oil and adjusted the valves so he doesn't sound like a complete noob. Can the mechanical oil pump fail? I've never heard of it. What else can cause a motor to seize? I think it's just the starter might be frozen to the flywheel as the guy said you can hear the starter "click"
  • TimKninja
    R3VLimited
    • Mar 2009
    • 2131

    #2
    Take a 22 mm wrench to the crank bolt.

    Starter solonoid could be bad too.
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    • bastianshaw
      R3VLimited
      • Jan 2007
      • 2210

      #3
      Yea I know but getting to that bolt is like an hr long process and then if it turns the guy might not want to sell it :-/

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      • Rigmaster
        No R3VLimiter
        • Jul 2004
        • 3464

        #4
        Originally posted by bastianshaw
        Yea I know but getting to that bolt is like an hr long process and then if it turns the guy might not want to sell it :-/
        WTF? Getting to that bolt is like a 2 second process.

        Just stick your head under the hood with a wrench and see if it turns, he doesn't need to know exactly what you're doing.


        EDIT: the starter click could be a bad starter, or bad wiring, or almost dead battery. To make an informed decision, you just need to know if the engine is locked up or not- that should help determine how much the car is worth to you.

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        • TurboJake
          No R3VLimiter
          • Oct 2010
          • 3780

          #5
          You know what can cause a motor to seize?

          A leaky headgasket filling the cylinder with coolant while it's sitting.. Pull the spark plugs and then try to crank with the starter, wrench, or ratchet.

          Make sure you don't do it inside their garage though. They tend to get angry.


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          • bastianshaw
            R3VLimited
            • Jan 2007
            • 2210

            #6
            Thanks guys I could care less about the head gasket being bad. If it is then all the important maintenance gets done right off the bat and keeps my lazy white ass from procrastinating

            I could have sworn the crank bolt was a pita to get to...

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            • bernzpeed
              No R3VLimiter
              • Feb 2009
              • 3917

              #7
              crank bolt is not that bad to get to. get 22 wrench, turn the engine.
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              • bastianshaw
                R3VLimited
                • Jan 2007
                • 2210

                #8
                Originally posted by bernzpeed
                crank bolt is not that bad to get to. get 22 wrench, turn the engine.
                Lol just saw this after I called you

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                • bastianshaw
                  R3VLimited
                  • Jan 2007
                  • 2210

                  #9
                  can the oil pump fail?

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                  • MR 325
                    Moderator
                    • Oct 2003
                    • 37827

                    #10
                    Of course it can fail.

                    Could also have a broken timing belt...
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                    • bastianshaw
                      R3VLimited
                      • Jan 2007
                      • 2210

                      #11
                      Originally posted by MR 325
                      Of course it can fail.

                      Could also have a broken timing belt...
                      common?

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                      • Cletonius
                        R3VLimited
                        • Oct 2010
                        • 2809

                        #12
                        Originally posted by bastianshaw
                        common?
                        Totally unheard of.
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                        • BergerNJ
                          Grease Monkey
                          • Oct 2009
                          • 349

                          #13
                          Originally posted by Cletonius
                          Totally unheard of.

                          lol stop.

                          yes it could be broken but it would try and start wouldn't it?

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                          • paperplane94
                            E30 Addict
                            • Jul 2011
                            • 420

                            #14
                            I vote timing belt...

                            Piston><valve=no bueno

                            when you try starting it, remove the oil filler cap and look for any cam movement.

                            If you want to turn it over more easily, pull out the park plugs.

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                            • bernzpeed
                              No R3VLimiter
                              • Feb 2009
                              • 3917

                              #15
                              Broken timing belt = bent valves or damage to pistons.

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