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Thread: Finally done the M50 swap...Follow-Up Pics...

  1. #1
    Join Date
    Jan 2004
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    Thunder Bay, Ontario
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    Default Finally done the M50 swap...Follow-Up Pics...

    From this

    Used/Rebuilt M50 block on pallet



    Pull the old one, clean up the 'bay'



    Clean up the new block (new rings, bearings, honed) and re-assemble with new gaskets seals



    Fire it up to discover the cranckshaft is bent *&&^(#@$%! Tore it alldown to thebare block on a pallet in 8 hours and ship it back for replacement (crankshaft only).

    10/90 Build 525im, 630,000+km, Eibach/Sachs, Engine Rebuild
    *RIP Oskar the DOG *

  2. #2
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    Time for take two. Photo of the engine being dropped in for the second time This gets easier after some practice



    Finally in, running well. Bad photo, but I painted the valve cover a high temp silver. Also painted the plastic covers, silver stripes and all.



    On the road with the 'new' 16" baskets and kumhos.



    So far so good. I've been driving it pretty hard with dino oil to seat the new rings and have noticed a power increase over the last few hundred kms. I will try a compression test at @1000km and compare to pre-work figures.

    Thanks again for all the help along the way. If anyone needs advice on a similar project, feel free to ask. I only bought one specialized tool and could have easily gotten away without it. It was far easier than I thought (especially the second time).

    Over and out,

    Dave M

    10/90 Build 525im, 630,000+km, Eibach/Sachs, Engine Rebuild
    *RIP Oskar the DOG *

  3. #3
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    Reston Va
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    Looks like a great outcome to a major project. you seem very happy with the results. Congrats! - JT
    Johntee540
    1994 540/6 Black - Tan - 199k
    Cardomain Site: http://www.cardomain.com/ride/737181/1

  4. #4
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    Kingston, Ontario, Canada
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    Great work, Dave! Well done.

    Cheers,
    Duey

    1995 540i/6 Sport Pkg w/E.A.T. chip and Nikasil injection Duey's Gallery

  5. #5
    Join Date
    Feb 2006
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    Orlando, FL (Gainesville)
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    Default

    awesome work!, did you just use the basic hi temp spray paint? Also, what did you use for the black part? paint or plastic shine?

  6. #6
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    Mar 2006
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    East Brunswick, New Jersey
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    Good job. My only comment is you could have bolted the gear box to the engine and lower it as a unit. That would have averted some knuckle bruise.
    '01 540it, 6/01
    '03 325i 5 speed, 9/02
    '10 535ix. 9/09
    '10 mini 6 speed
    '15 mini countryman 6 speed

  7. #7
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    Dec 2003
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    Eastern Tennessee USi
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    Awesome job Dave, glad it worked out after the bent crank catastrophy
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  8. #8
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    Quote Originally Posted by GoldenOne
    awesome work!, did you just use the basic hi temp spray paint? Also, what did you use for the black part? paint or plastic shine?
    I used POR-15 high temp mat black for the manifold.

    POR-15 regular grey for the block (following a good de-greasing with "Marine Clean".

    The valve cover was painted with a silver household radiator paint.

    Plastic covers were painted with "Plasticote"(sp?) black and metallic silver. Lots of making tape used for the stripes.

    Everything seems to be holding up well.

    Thanks,

    Dave M

    10/90 Build 525im, 630,000+km, Eibach/Sachs, Engine Rebuild
    *RIP Oskar the DOG *

  9. #9
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    Quote Originally Posted by yaofeng
    Good job. My only comment is you could have bolted the gear box to the engine and lower it as a unit. That would have averted some knuckle bruise.
    Yep, I recall your post which included said advice. I think I was in it for some punishment

    Dave M

    10/90 Build 525im, 630,000+km, Eibach/Sachs, Engine Rebuild
    *RIP Oskar the DOG *

  10. #10
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    Quote Originally Posted by 632 Regal
    Awesome job Dave, glad it worked out after the bent crank catastrophy
    Thanks Jeff,

    If the second try turned up a bent crank, I'd be drivin a Dodge Omni.

    DaveM M

    10/90 Build 525im, 630,000+km, Eibach/Sachs, Engine Rebuild
    *RIP Oskar the DOG *

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