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Thread: Front Main Seal

  1. #1
    Join Date
    Sep 2007
    Location
    Michigan
    Posts
    335

    Default Front Main Seal

    Any words of wisdom as I change my front main seal on the M30?
    I've done an M20 and other motors before but my Exon Valdese situation is to the point I can't take it any longer.
    Radiator in or radiator out?

    1990 535im 421,000 miles, 1987 325is, 1989 325is, 1990 m3, 1991 318is, 2001 X5 3.0

  2. #2
    Join Date
    May 2004
    Location
    Japan
    Posts
    9,096

    Default

    Maybe you take it out, more space and no danger that you damage the radiator when you might slip with the tools.
    Also check here what they recommend https://www.bmwtechinfo.com/repair/main/

  3. #3
    Join Date
    Sep 2007
    Location
    Michigan
    Posts
    335

    Default

    Thanks for the link.
    I might pressure wash the front end of the motor first.

    1990 535im 421,000 miles, 1987 325is, 1989 325is, 1990 m3, 1991 318is, 2001 X5 3.0

  4. #4
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,695

    Default

    Dont hit the condensor or radiator, you'll bend the fins over.
    95 E34 530I V2.31
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

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