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Thread: Turbo Bolts Same Length?

  1. #1
    Join Date
    Dec 2012
    Location
    topanga CA
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    483
    My Cars
    84 728i,325Ci, 77 R100RS

    Turbo Bolts Same Length?

    I'm hanging a new turbo from the 745i manifold. Are all 4 big main bolts the same length? I have 3 one length and one 1/2" shorter. Not how I remember it.

  2. #2
    Join Date
    Dec 2012
    Location
    topanga CA
    Posts
    483
    My Cars
    84 728i,325Ci, 77 R100RS
    The answer to the question is yes, All 4 same length. And if some moron has replaced one with a shorter one, you can use E36 head bolts instead. Nice and hard, same type (almost) heads. With your knees against the RF tire, the outboard forward E36 bolt needs to be trimmed to original length so it doesn't interfere with the snail. The other 3 holes will happily take the E36 bolts as is.

  3. #3
    Join Date
    Jun 2010
    Location
    TX
    Posts
    4,487
    My Cars
    1983/84/85 745i
    Yep. Same length...but a few studs are different length!
    I make E23 parts.
    09/1983 745i (stolen spring '13 around Houston, TX Achatgruen on nutria buffalo. 8481080)
    10/1984 745i
    11/1984 745i
    11/1984 735i (10:1-265/6)
    Ford, MB, and GM round out the pack.



  4. #4
    Join Date
    Dec 2012
    Location
    topanga CA
    Posts
    483
    My Cars
    84 728i,325Ci, 77 R100RS
    Eric, The new turbo is lovely. What's happening with the wastegate project?

  5. #5
    Join Date
    Jun 2010
    Location
    TX
    Posts
    4,487
    My Cars
    1983/84/85 745i

    Thumbs up

    Quote Originally Posted by andyleonard View Post
    Eric, The new turbo is lovely. What's happening with the wastegate project?


    Finally back on a PC so I can type! Going to hone the valve guides and drop them off to be coated next week hopefully.
    I make E23 parts.
    09/1983 745i (stolen spring '13 around Houston, TX Achatgruen on nutria buffalo. 8481080)
    10/1984 745i
    11/1984 745i
    11/1984 735i (10:1-265/6)
    Ford, MB, and GM round out the pack.



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