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Thread: Oil leak question

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

    Default Oil leak question

    My 1990 535i has an oil leak at the front of the motor approximately at the seal at the crank and lower timing case.
    I need to climb around some more to verify that's the only place leaking in that neighborhood. I get a 4" diameter puddle every time I turn off the car. It only has 383,000 miles so I figure it's about due. Is there any special trick or other parts involved in changing that seal? I have done the job on M20B25 motors but not the M30. I can't tell if more than the dampener has to come off the front of the crank. Any links available to a write up?

    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
    9,249

    Default

    on my site go to other diy links, there to Jon Evans, he has a write up with pics for the M30 front engine oil leak.

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

    Default

    Boy would that be sweet if that's all it is. I'll fire up the pressure washer and take a good look.
    Stay tuned.

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

  4. #4
    Join Date
    Dec 2004
    Location
    Sydney, Australia
    Posts
    4,374

    Default

    It will be, unless oil is seeping from elsewhere and thus allowing air in, which means it will be running badly.

    Join the Aussie
    540i LE yahoo forum

    08/88 535i e34 M30+miller MAF, 'stiens, tints & teeth!

  5. #5
    Join Date
    Sep 2007
    Location
    Michigan
    Posts
    335

    Default

    Runs Great.
    It's been raining here for a couple days so I haven't been able to get to the project. Hopefully this weekend.
    I did however acquire a complete good condition interior from a 540i sport from 1995 that I am installing.

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

  6. #6
    Join Date
    Dec 2004
    Location
    Sydney, Australia
    Posts
    4,374

    Default

    Woot, always nice to have an M-interior. The way all cars should be made inside, but they make them to fit everyone's needs instead of 'just the drivers'

    I enjoy a squeeze in and out, and if I were fatter, I'd just be ordering tailored seats instead- not putting up with bum-slide each time one gets a tad of tail-slide! Good buy- you better plan to keep her, cos once you drive her in that interior you'll never be happy in another car unless you move to an M-car... your bar has been raised!

    Join the Aussie
    540i LE yahoo forum

    08/88 535i e34 M30+miller MAF, 'stiens, tints & teeth!

  7. #7
    Join Date
    Sep 2007
    Location
    Michigan
    Posts
    335

    Default

    It's looking more like the e30 M3 interior all the time except you can put in a family of 5 and head off to church.
    I have to remove a custom heat shield that partitions off the K&N air filter to get a good look at the bolt and wasn't relishing the idea of doing that in the rain. The garage is glogged with other projects at the moment.

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

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