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V8 Valley Gasket - Other Things to Address With Engine Apart

Discussion in 'E39 (1997-2003)' started by rjcouturier, Feb 22, 2011.

    • Member

    rjcouturier

    Post Count: 3
    Likes Received:0
    Hello All.

    I'm getting ready to take my '01 540k (115k) in to replace valley gasket and a leaky intake manifold. What other work should I get done while my engine is torn apart? In addition to the valley gasket and intake manifold gasket, I'm also thinking vibration isolation, valve cover gasket, exhaust manifold gasket.

    Any other suggestions?

    Thank you.
    • Member

    MGarrison

    Post Count: 2,870
    Likes Received:147
    Read this thread - you might want to replace the fan blades.
    http://bmwcca.org/forum/showthread.php?t=8759

    Apparently loose oil pump bolts are a potential issue, don't know if it applies to V8's by 2001, but certainly seemed to be for earlier ones - have to have drop the oil pan, from the looks of it.

    Probably a good idea to do a water pump if it hasn't been already, but consider the radiator and other cooling system issues.

    Here's some links - somewhere in there is something about the oil separator valve (OSV) difficult to access at the back of the engine, but easily accessed with everything else you're doing.

    If you have an automatic, see what needs servicing to extend its life - filters, fluids, etc.

    Some links:
    http://www.e38.org/
    http://www.bimmerboard.com/forums/posts/344734
    http://www.bimmerboard.com/forums/posts/124059
    http://www.bimmerboard.com/forums/posts/124310
    http://www.cardomain.com/ride/205279/1998-bmw-7-series/page-16
    http://www.bimmerboard.com/forums/posts/175047
    http://www.60ateight.com/BMW_E38/
    http://www.cardomain.com/ride/240317/1996-bmw-7-series/page-5
    http://carphotos.cardomain.com/ride_images/1/962/1341/2403170064_large.jpg
    http://carphotos.cardomain.com/ride_images/1/962/1341/2403170065_large.jpg
    http://carphotos.cardomain.com/ride_images/1/962/1341/2403170066_large.jpg
    http://carphotos.cardomain.com/ride_images/1/962/1341/2403170067_large.jpg
    http://carphotos.cardomain.com/ride_images/1/962/1341/2403170062_large.jpg
    http://www.bimmerboard.com/forums/posts/11919
    http://www.bimmerboard.com/forums/posts/816587
    http://bimmer.roadfly.com/bmw/forums/e38/
    http://www.bimmerboard.com/forums/posts/607468
    http://www.bimmerboard.com/forums/posts/552039
    http://www.bimmerboard.com/forums/posts/264840
    http://www.bimmerboard.com/forums/posts/121268
    http://www.bimmerboard.com/forums/posts/793672
    http://www.bimmerboard.com/forums/posts/439586
    http://www.bimmerboard.com/forums/posts/233246
    http://www.bimmerboard.com/forums/posts/49387
    http://home.comcast.net/~vicent/osve38.html
    http://bimmer.roadfly.com/bmw/forums/e38/forum.php?postid=1751559&page=9
    http://www.bimmerboard.com/forums/posts/140918
    http://www.bimmerboard.com/forums/posts/410780
    http://www.magnum1.com/
    http://www.magnum1.com/BMW-740/740_Pages/740.html
    http://www.magnum1.com/BMW-740/740_Pages/Maintenance-Pages/Valley-Pan-740.html
    http://www.magnum1.com/BMW-740/740_Pages/Maintenance-Pages/Valve-Cover-Gaskets-740.html
    http://forums.bimmerforums.com/forum/forumdisplay.php?f=310&order=desc&page=3
    http://forums.bimmerforums.com/forum/showthread.php?t=1441379
    http://forums.bimmerforums.com/forum/attachment.php?attachmentid=330208

    E39 specific:
    http://www.540i6.com/
    http://www.unofficialbmw.com/e39.html
    http://www.e38.org/e39/
    http://www.bimmerdiy.com/dir/e39
    http://www.bmwtips.com/

    cwbiii guest

    Post Count: 160
    Likes Received:0
    All rubber under the hood...

    You should consider replacing all hoses, boots, etc as these are aging out and are bound to give you issues.
    With a 10 year old car body condition is also something you should evaluate... you are at the point where rust can start to appear and once it gets started it is difficult to stop.
    I added 155k to a 1997 740i that already had 53k when I purchased it.
    In those miles I
    replaced the valley pan twice
    had the engine pulled to check a suspected "rap" which turned out to be the timing gear and chain... they replaced the trans fluid and filter as part of the deal as well as all bearings on the crank
    went through several sets of radiator and power steering hoses
    went through 4 radiators (plastic ones like to leak and are super fussy about torque on the hose clamps)
    two sets of replacement cats with new o2 sensors
    two water pump replacements
    1 fan replacement

    I also had to replace a number of suspension elements over the years but since mine was an e38 I don't know how relevant that would be for the e39.

    I sold it with 208k on the odo and the engine and trans were still operating very well.
    The body was rusting in several places which I had considered fixing but the car just was not worth the expense I would need to put into it at that time.
    I sold it as a "parts" car but the guy whom bought it planned to use it as a daily driver... it definitely had more miles left in it.

    Chuck
    • Member
    • Technical Service Advisor

    mooseheadm5

    Post Count: 1,880
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    Replace the valley pan, replace all of the intake gaskets and crankcase vent valve, and replace the valve cover gaskets (the "triple bypass.") If the water pump has been replaced recently, take the cross pipe off the back of the heads. If not, now would be a good time for a water pump, thermostat, and rest of cooling system replacement (radiator, hoses, expansion tank.) It gets expensive, but you should definitely do this so that you can enjoy another 100k miles trouble free. If you have done it before, it is a day long job. If not, it takes a weekend or more. If when you pull the coils any of the plug boots are covered with oil, you may wish to replace those boots. Hit me up if you need any other info on the job.

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