Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: Finished changing both valve cover gaskets,

  1. #1
    Join Date
    Jan 2008
    Location
    Sweden
    Posts
    572

    Default Finished changing both valve cover gaskets,

    used http://www.permatex.com/products/Aut...sket_Maker.htm to seal it up well and for ease of reinstallment of the covers, got rid of 98% of the hesitation/stutters I had @ cruising speeds due to soiled plugs and sockets!

    Now my question is: Iīve changed plugs, checked the sockets, changed fuel filter and pump/sender unit, no apparent holes in any hoses and Iīve cleaned the ICV for good measure.. Only thing I havenīt done yet is a reset of the computer!
    I still have a very slight stutter/hesitation occasionally (much much better compared to before but still) when cruising, so where do I look now?
    Last edited by Bo525i; 09-20-2009 at 11:34 AM.

    CD43,Style 21s,K&N Insert,White blinkers,LED 3rd brakelight,HIDs,front Monroe sportsshocks/Weitec 35 springs,540 Calipers, Zimmermann Discs and Textar pads.

  2. #2
    Join Date
    Sep 2007
    Location
    Seattle, WA
    Posts
    1,036

    Default

    Which car has the stutter? If I had to guess I'd guess the 530 as you mention "both valve cover gaskets".

    But would help to know if we're talking about an M50 or an M60...
    Cosmos Black/Black 1995 540iA M-Sport
    BMW Individual Exclusive Edition, 1 of 65 total, 9/25/95 Build

  3. #3
    Join Date
    Jan 2008
    Location
    Sweden
    Posts
    572

    Default

    True, the M60 with 2 valve covers!

    CD43,Style 21s,K&N Insert,White blinkers,LED 3rd brakelight,HIDs,front Monroe sportsshocks/Weitec 35 springs,540 Calipers, Zimmermann Discs and Textar pads.

  4. #4
    Join Date
    Sep 2007
    Location
    Seattle, WA
    Posts
    1,036

    Default

    How are your coil boots?

    I had a slight misfire/stutter at 2.5K+ RPM. While the coil boots measured to still be in spec, the rubber was slightly deteriorated due to heat. Changed the coil boots as I'm fairly sure they were the originals and that misfire/stutter is now completely gone. It runs really smooth now from 2k-7k RPM.
    Cosmos Black/Black 1995 540iA M-Sport
    BMW Individual Exclusive Edition, 1 of 65 total, 9/25/95 Build

  5. #5
    Join Date
    Jan 2008
    Location
    Sweden
    Posts
    572

    Default

    Hmmm, they seemed to be in perfect working order, no apparent deterioration.. But I might try changing them anyways!

    CD43,Style 21s,K&N Insert,White blinkers,LED 3rd brakelight,HIDs,front Monroe sportsshocks/Weitec 35 springs,540 Calipers, Zimmermann Discs and Textar pads.

  6. #6
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,709

    Default

    Quote Originally Posted by Bo525i View Post
    Hmmm, they seemed to be in perfect working order, no apparent deterioration.. But I might try changing them anyways!
    Make sure you get matching boots If you have bremi coils go with bremi boots, resistances are different.
    95 E34 530I V2.34
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  7. #7
    Join Date
    Jan 2008
    Location
    Sweden
    Posts
    572

    Default

    Bremi it is!

    CD43,Style 21s,K&N Insert,White blinkers,LED 3rd brakelight,HIDs,front Monroe sportsshocks/Weitec 35 springs,540 Calipers, Zimmermann Discs and Textar pads.

  8. #8
    Join Date
    Jan 2008
    Location
    Sweden
    Posts
    572

    Default

    Finally got around to changing all the coil boots, the difference is like night and day!

    Better mileage, all the little annoying stutters are gone, throttle response has improved and the acceleration is smoooooth now!

    The old ones seemed ok, no cracks but actually didnīt sit tight. When pulling them there was no resistance at all like with the new ones which go in and out with a satisfying tight feeling!

    CD43,Style 21s,K&N Insert,White blinkers,LED 3rd brakelight,HIDs,front Monroe sportsshocks/Weitec 35 springs,540 Calipers, Zimmermann Discs and Textar pads.

  9. #9
    Join Date
    Sep 2007
    Location
    Seattle, WA
    Posts
    1,036

    Default

    Good to hear the new boots fixed it.

    My old ones looked ok for the most part. Even measured fine resistance-wise. But putting new ones in was definitely an improvement.

    Kinda makes it hard to figure out if your boots are bad or not. Haven't found any info on checking them out other than swapping them with new ones.
    Cosmos Black/Black 1995 540iA M-Sport
    BMW Individual Exclusive Edition, 1 of 65 total, 9/25/95 Build

  10. #10
    Join Date
    Feb 2004
    Posts
    4,892

    Default

    Don't bother trying to measure old boots... One thing I know for sure between old and new is that when you measure the resistance... old boot will measure out fine and sonstantly as long you keep the probes on it.

    The new boots does not allow constant measuring... it will display measurement for 1 second or so and then stop back to disconnected as long you keep the probes on it. To get the reading again, you have to release one probe and touch it again. Sort of like pulse technology... allowing one pulse at a time.

Page 1 of 2 12 LastLast

Similar Threads

  1. well finished my other valve cover gasket
    By markus in forum 5 Series BMW
    Replies: 2
    Last Post: 07-01-2007, 11:24 PM
  2. M60 valve cover gaskets this weekend
    By markus in forum 5 Series BMW
    Replies: 4
    Last Post: 03-24-2007, 06:22 AM
  3. replacing valve cover gaskets
    By markus in forum 5 Series BMW
    Replies: 5
    Last Post: 02-04-2007, 12:42 PM
  4. Valve Cover Gaskets
    By hinchcliffe in forum 5 Series BMW
    Replies: 15
    Last Post: 01-01-2007, 04:19 PM
  5. Valve cover gaskets - replace or not?
    By pingu in forum 5 Series BMW
    Replies: 3
    Last Post: 05-27-2006, 10:24 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •