FixVault

31 00... Installing Helicoil threads

IMPORTANT: Install Helicoil thread inserts so that they are flush with the original thread.
NOTE: Damaged threads on the engine support may be repaired with Helicoil thread inserts. Follow the procedure described in the example.
Fig 1: Identifying Helicoil Thread Insert
G11171249Courtesy of BMW OF NORTH AMERICA, INC.

Procedure: 

  1. Create a clean core hole; if necessary, drill out screw remnants
    Fig 2: Drilling Clean Core Hole
    G11171250Courtesy of BMW OF NORTH AMERICA, INC.
  2. Create locating thread for Helicoil thread insert
    Fig 3: Creating Locating Thread For Helicoil Thread Insert
    G11171251Courtesy of BMW OF NORTH AMERICA, INC.
  3. Pick out Helicoil thread insert in accordance with the TABLE  and screw into the locating thread until flush with the original thread
    Fig 4: Installing Helicoil Thread Insert
    G11171252Courtesy of BMW OF NORTH AMERICA, INC.
  4. Break drive pin and remove
Fig 5: Breaking Drive Pin
G11171253Courtesy of BMW OF NORTH AMERICA, INC.