GO FISHING, use SLABSAUCE Fishing Attractant
Results 1 to 7 of 7

Thread: Quickest access to a vacuum line on E34?

  1. #1
    Join Date
    Nov 2005
    Location
    Los Angeles, near Torrance
    Posts
    37

    Default Quickest access to a vacuum line on E34?

    I am going to Seafoam my M50 engine, and I want to know the easiest place to access a vacuum line. Does the intake manifold have a suction hose just like the M20 engine?

    On a related note, I read a BMW thread on a different forum where the poster removed his spark plugs and poured Seafoam directly into the cylinders and let it soak for a few minutes. Is this a good idea? How much Seafoam do I pour in? I expect that Seafoam and carbon deposits would come flying out the sockets as soon as I start cranking.

    Seafoam really helped my old 3-series with the M20 engine; I'd love to give this one a good cleaning as well.

    Any advice is appreciated.
    Last edited by theirongiant; 05-05-2006 at 06:31 AM.

  2. #2
    Join Date
    Mar 2006
    Posts
    811

    Default

    How big a vaccum line do you need? Just open the hood and find a vaccum hose and T in. I would recomend you don't run it through any check valves.

  3. #3
    Join Date
    Dec 2003
    Location
    baton rouge, loserana
    Posts
    6,922

    Default

    the two ports in a m50 are the one for the fpr near the back and the one at the fitting for the icv directly in the center under the intake
    all america wants is cold beer warm cat and a place to take a poop with a door on it

  4. #4
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,839

    Default

    if you pour too much in the cylinders you can hydrolock it.
    Quote Originally Posted by theirongiant
    I am going to Seafoam my M50 engine, and I want to know the easiest place to access a vacuum line. Does the intake manifold have a suction hose just like the M20 engine?

    On a related note, I read a BMW thread on a different forum where the poster removed his spark plugs and poured Seafoam directly into the cylinders and let it soak for a few minutes. Is this a good idea? How much Seafoam do I pour in? I expect that Seafoam and carbon deposits would come flying out the sockets as soon as I start cranking.

    Seafoam really helped my old 3-series with the M20 engine; I'd love to give this one a good cleaning as well.

    Any advice is appreciated.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  5. #5
    Join Date
    Nov 2005
    Location
    Los Angeles, near Torrance
    Posts
    37

    Default

    Quote Originally Posted by joshua43214
    How big a vaccum line do you need? Just open the hood and find a vaccum hose and T in. I would recomend you don't run it through any check valves.
    Not too big; just about 1/4" or so. I will be inserting the hose into a can of Seafoam. The suction should be strong enough so that the intake will "drink" it like water through a straw and spray it all over the inside of the manifold before feeding it to the cylinders.

  6. #6
    Join Date
    Dec 2005
    Location
    Johannesburg, South Africa
    Posts
    62

    Default Seafoam?

    Please explain what this is and what it does? I've never heard of it before....

  7. #7
    Join Date
    Mar 2005
    Location
    Hockinson, Washington
    Posts
    2,499

    Default

    it cleans out your engine. You can put a can in your gas tank, or the intake.
    Lowered with blue h&r(?) springs, Bilsteins, tint, 19# design 3 injectors, Dual Magnaflow
    southwest WA

Similar Threads

  1. Seafoam - which vacuum line to use?
    By repenttokyo in forum 5 Series BMW
    Replies: 10
    Last Post: 04-29-2008, 11:14 PM
  2. vacuum line locations
    By blee in forum 5 Series BMW
    Replies: 8
    Last Post: 08-03-2006, 03:56 AM
  3. Replies: 2
    Last Post: 12-05-2004, 07:06 PM
  4. Vacuum Line - PLEASE HELP
    By DonC in forum 5 Series BMW
    Replies: 1
    Last Post: 10-01-2004, 12:44 PM
  5. finding a vacuum line
    By casurfer911 in forum 5 Series BMW
    Replies: 0
    Last Post: 07-12-2004, 07:39 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
  •