Recognize these bolts? | FerrariChat
Buy

Recognize these bolts?

Discussion in 'Boxers/TR/M' started by Warlock, Sep 14, 2025 at 4:45 PM.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. Warlock

    Warlock Karting

    Nov 24, 2013
    69
    Dallas, TX
    Full Name:
    Sunny
    #1 Warlock, Sep 14, 2025 at 4:45 PM
    These were left over from a clutch replacement on an ‘87 Testarossa Anybody recognize where they belong? Or perhaps it’s from another project that got bagged by mistake.


    Image Unavailable, Please Login
     
  2. JohnMH

    JohnMH Formula 3

    Jan 28, 2004
    1,843
    Bologna
    #2 JohnMH, Sep 15, 2025 at 12:48 AM
    They look like two of the 16 bolts that bolt the front of the engine subframe to the chassis. 19mm?
     
  3. turbo-joe

    turbo-joe F1 Veteran

    Apr 6, 2008
    9,589
    southwest Germany, France ( Alsace ) and Thailand
    Full Name:
    romano schwabel
    #3 turbo-joe, Sep 15, 2025 at 1:06 AM
    what size are those?
    M8 with 13 mm head? then I think for a heat shield
    M 10 with 17 mm head? then I have no idea
     
  4. Warlock

    Warlock Karting

    Nov 24, 2013
    69
    Dallas, TX
    Full Name:
    Sunny
    #4 Warlock, Sep 16, 2025 at 1:54 AM
    It appears to be a M6x15, socket size 10 on the bolt head and locknut. I have a pair as seen in the pic.
    The heat shield is installed, as are the sensors on the bell housing, so its not those.
     
  5. Warlock

    Warlock Karting

    Nov 24, 2013
    69
    Dallas, TX
    Full Name:
    Sunny
    #5 Warlock, Sep 16, 2025 at 2:03 AM
    I don't believe any subframe bolts were removed for the clutch replacement, as I recall my general sequence was:
    1. Rear valance and grill
    2. Tubi exhaust and intermediate/pre-cat test pipes, and lambda sensors in the pipes
    3. Heat shield
    3. Air cleaner housing and undertray
    4. All sensors around the bell housing, and starter motor - my zip loc bag label seems to indicate this section. Is there a strap/band that holds the clutch line perhaps?
    5. Bell housing
    6. Pressure plate and clutch
     
  6. JohnMH

    JohnMH Formula 3

    Jan 28, 2004
    1,843
    Bologna
    #6 JohnMH, Sep 16, 2025 at 2:12 AM
    What size are they? The size of wrench needed and the fact that they have an accompanying washer and nut limits the possibilities.
     
  7. JohnMH

    JohnMH Formula 3

    Jan 28, 2004
    1,843
    Bologna
    #7 JohnMH, Sep 16, 2025 at 2:14 AM
    The sheet metal under the bumper and the bracket that supports it have a myriad of bolts, nuts and washers that hold them in place. My car lacked many of them when I got it. Generally all 10mm nuts and bolts. These look too large.
     
  8. turbo-joe

    turbo-joe F1 Veteran

    Apr 6, 2008
    9,589
    southwest Germany, France ( Alsace ) and Thailand
    Full Name:
    romano schwabel
    #8 turbo-joe, Sep 16, 2025 at 7:49 AM
    what is 10 mm? the bolts or the heads?
    if 10 mm the heads then it is a 6 mm bolt
    but if the bolt is 10 mm then the head is 17 mm

    sure? the thread looks like 1,25 and then it would be a M 8
    just put a caliper on, measure and post the photo here please
     

Share This Page