heli coil

  1. K

    Ml270 injector popped out

    I have a problem with my 270. One of the injectors popped out and stripped the threads. Tired m6 helicoil but the original bolt holes to big for m6. Can i go m7 or even m8? Is there enough surround metal to be able to drill n tap an m7 or m8 helicoil. All help appreciated
  2. M

    Injector blown out, taking helicoil with it

    Well i think i`ve found my rough running problem, the very 1st injector popped out yesterday , inspected today it has took the helicoil with it, looks like a bad repair by someone, the injector itself has a long crack on the bottom section , i`m guessing this has been the cause of it running...
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