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Thread: General engine overhaul procedures

  1. #1
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    Default General engine overhaul procedures


  2. #2
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    I saw no mention specifically of the M60. I had been left with the impression the M60 would not be suitable for such refurbishing. Are you aware whether this is true or if I were inclined might it be possible to refresh the M60B40 in my 540 which is now consuiming a quart of 5w30 in under 1k mies? New rings, crank shaft and connecting rod bearings and valve seal/guides just where ever oil may now be passing.
    1995 540i Manual build 1/95

  3. #3
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    when that repair book was printed, probably the M60 engine was not yet on the market. There is no reason that an M60 engine is not suitable for refursbishing.
    Buy a Bentley Repair Manual, that covers it.
    oil consumption has many reasons. First of all I would check the typical fault
    see under engine OSV replacement = oil separator valve
    http://www.e38.org/

  4. #4
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    Quote Originally Posted by Jehu View Post
    I saw no mention specifically of the M60. I had been left with the impression the M60 would not be suitable for such refurbishing. Are you aware whether this is true or if I were inclined might it be possible to refresh the M60B40 in my 540 which is now consuiming a quart of 5w30 in under 1k mies? New rings, crank shaft and connecting rod bearings and valve seal/guides just where ever oil may now be passing.
    You can easily do new rings/seals/bearings/etc in an M60. What you can't easily do is bore out the cylinders. So if you have a nik block that has cylinder wall damage you'd need to install sleeves in the cylinders in order to fix that as you can't just overbore it and re-ring it to match the new bore.
    Cosmos Black/Black 1995 540iA M-Sport
    BMW Individual Exclusive Edition, 1 of 65 total, 9/25/95 Build

  5. #5
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    Thanks Erich

    When rebuilding an engine, I see it says "Use a centre-punch or numberstamping dies to mark the main bearing caps to ensure refitting in their original locations on the block".

    Is this true? When I dismantled my old engine (bottom end), I did not mark anything. Will this matter if I ever want to re-assemble it?

  6. #6
    Join Date
    Feb 2007
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    How about this for the M60, page 2 has some good pics:

    http://forums.bimmerforums.com/forum....php?t=1354664

    And this one looks pretty good too:

    http://forums.bimmerforums.com/forum...php?p=18483772

    Doesn't cover the engine internals but seems like a good place to start.
    UK 1997 e34 540iA Touring, 1989 535i Sport - now sold, 1998 Mercedes CLK 200 Coupe


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