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timing belt snapped and.....

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    #16
    Originally posted by Cabriolet View Post
    $250 for a good head is very good price. i've pulled 8 heads at the junkyard before getting a perfect one. then paid $100 to junkyard and $60 to get it machined and 4 hours of my time lapping the valves.

    PS bullshit, there is no such thing as a good m20b25 with 230k-mi. the whole lower end is shot. you know that tremble it makes when you first start it, ya that's the crank bearings crying. throw your entire engine out or rebuild it.
    My thoughts exactly on using the m20 lower end. But this tremble you speak of didnt exist. It ran like it had 100k.


    90 325is alpine2 m50b25 becoming a dorifto car.

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      #17
      Originally posted by Unearth078 View Post
      fix it
      Just get a shop to weld the piece back in, then align bore it to spec.

      Done.

      Had this done on a M30 head I fucked up. Couldn't even tell.

      Then had the head decked and it was warped as fuuuuuuuuuuu, so never got to use it.
      1974.5 Jensen Healey : 2003 330i/5

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        #18
        I might just tear it apart and put it on an engine stand and rebuild it. Im trying to stay away from a 24v for the reason that this car is almost 100% original. Only the trans(5speed swap), bottlecaps arent original. 8/10 black leather sport interior with heated front seats. I planned on selling it but I guess now im stuck with it.


        90 325is alpine2 m50b25 becoming a dorifto car.

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          #19
          Originally posted by Cabriolet View Post
          $250 for a good head is very good price. i've pulled 8 heads at the junkyard before getting a perfect one. then paid $100 to junkyard and $60 to get it machined and 4 hours of my time lapping the valves.

          PS bullshit, there is no such thing as a good m20b25 with 230k-mi. the whole lower end is shot. you know that tremble it makes when you first start it, ya that's the crank bearings crying. throw your entire engine out or rebuild it.
          My M20 had an original 263k on it and ran flawlessly , it's still going in my friends Vert. Wouldn't be surprised if it had another 100k left in it . Your opinion is invalid .

          OP, why the hell did you put off changing your timing belt? Fail.
          1985 325e M50TU(Sold)
          1991 318is Slicktop (Sold)
          1990 325is Brilliantrot S50/5 Lug Swapped.
          1992 525i Manual shitbox Winter Beater

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            #20
            Originally posted by TimKninja View Post
            My M20 had an original 263k on it and ran flawlessly , it's still going in my friends Vert. Wouldn't be surprised if it had another 100k left in it . Your opinion is invalid .

            OP, why the hell did you put off changing your timing belt? Fail.
            No garage, no tools, no time, no other legal driveable vehicle. Im pretty much forced to take time off of work to attempt to fix my car.


            90 325is alpine2 m50b25 becoming a dorifto car.

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              #21
              It only takes a few hours.. would have been cheaper to pay a shop than wait for it to break.

              I'll never understand these threads.
              Build thread

              Bimmerlabs

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