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Home >> Porsche >> 2021 >> 911 Targa 4 >> Repair and Diagnosis >> Transmission >> Manual Trans >> 34 Mechanical Transmission Actuator Housing -- 992 - 911 CARRERA (992) >> WM, 343519 Removing And Installing Transmission >> Install Transmission

Install Transmission

  1. Raise and guide in the transmission.
    1. 1.1 Only tighten screws in the following sequence initially: -5, 1, 3, 6, 4, 2-  .

      For the next step, it is important that the screws are not yet tightened!

    2. 1.2 Position the transmission 15 mm away from the engine flange.
    Fig 1: Transmission Flange On Engine Screws Tightening Sequence
    G15509338Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Threaded joint for transmission flange on engine

  2. Install clutch slave cylinder.
    1. 2.1 Grease the clutch slave cylinder at the lubrication point -Arrows-  using Kluber Syntheso Glep.
      G15509339Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Lubrication point on clutch slave cylinder

    2. 2.2 Position the clutch slave cylinder.
    3. 2.3 Only insert screws -1-  first.
    G15509340Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Clutch slave cylinder

    NOTE: Engine housing overload.
    • Risk of engine damage if housing breaks.

      → Observe specified loosening and tightening sequence!

      → Loosening sequence: Loosen screws from the bottom up.

      → Tightening sequence: Tighten screws from top to bottom.

  3. Attach the transmission flange.
    1. 3.1 Fit screws -4, 5, 3, 6-  first, then -1 and 2-  .
    Fig 2: Transmission Flange On Engine Screws Tightening Sequence
    G15509341Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Threaded joint for transmission flange on engine

  4. Secure the clutch slave cylinder.
    1. 4.1 Check that the clutch slave cylinder is fitted correctly.
    2. 4.2 Tighten screws -1-  on the clutch slave cylinder.

      > Tightening torque 23 Nm (17 ftlb.) 

    G15509342Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Clutch slave cylinder

  5. Tighten all screws in the following sequence -4, 5, 3, 6, 1, 2-  using >V.A.G 1332 - torque wrench, 40-200 Nm (30-148 ftlb.)  , for example.

    > Tightening torque 85 Nm (62.7 ftlb.) 

    Fig 3: Transmission Flange On Engine Screws Tightening Sequence
    G15509343Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Threaded joint for transmission flange on engine

  6. Secure cable duct for B+ line.
    1. 6.1 Position cable duct -A-  .
    2. 6.2 Screw in and tighten screws -1-  .

      > Tightening torque 13 Nm (9.6 ftlb.) 

    G15509344Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Securing B+ line

  7. Install disc valve holder and connect vacuum line.
    1. 7.1 Screw in and tighten fastening screw -1-  on the holder.

      > Tightening torque 13 Nm (9.6 ftlb.) 

    2. 7.2 Connect vacuum line for disc valve -Arrows-  .
    G15509345Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Disc valve holder and vacuum line

  8. Install coolant hoses.
    1. 8.1 Position holder for coolant hoses -1-  .
    2. 8.2 Screw in and tighten fastening screw -2-  .

      > Tightening torque 13 Nm (9.6 ftlb.) 

      G15509346Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Holder for coolant hoses

    3. 8.3 Connect coolant hoses -1 and 2-  and secure with spring band clamps -3 and 4-  .
      G15509347Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Spring band clamps

    4. 8.4 Remove hose clamping pliers -3 and 4-  .
    G15509348Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Hose clamping pliers

  9. Connect cable plug for speed sensor -1-  .
    G15509349Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Speed sensor

  10. Install transmission support -6-  and transmission bracket -2-  .
    1. 10.1 Position transmission support -6-  and screw on and tighten new nuts -3-  on the threaded pins.

      > Initial tightening 30 Nm (22.1 ftlb.) 

      > Torque angle 60° 

    2. 10.2 Lift transmission using a transmission jack.
    3. 10.3 Position transmission bracket -2-  and fit and tighten new screws -1-  .

      > Initial tightening 30 Nm (22.1 ftlb.) 

      > Torque angle 60° 

    G15509350Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Transmission support and transmission bracket

  11. Remove transmission jack -1-  from under the transmission and engine.
    1. 11.1 Loosen restraining strap.
    2. 11.2 Lower and remove the transmission jack -1 and 2-  .
    G15509351Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Transmission jack

  12. Connect cable plug for temperature sensor to the transmission.
    1. 12.1 Connect cable plug for temperature sensor -1-  .
    2. 12.2 Lock locking element -Arrow-  .
    3. 12.3 Install sheetmetal holder -2-  .
    G15509352Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Connecting cable plug for temperature sensor

  13. Connect cable plug for reverse gear switch to the transmission.
    1. 13.1 Connect cable plug for reverse gear switch -1-  .
    2. 13.2 Clip in retaining clip -2-  .
    G15509353Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Securing cable plug for reverse gear switch

  14. Connect cable plug for disc valve and neutral gear sensor.
    1. 14.1 Connect cable plug for neutral gear sensor -1-  .
    2. 14.2 Connect cable plug for disc valve -2-  .
    3. 14.3 Clip in retaining clip -3-  .
    4. 14.4 Install sheetmetal holder -4-  .
    G15509354Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Position of cable plugs and brackets

  15. Secure shift and selector cables -3-  on the transmission.
    1. 15.1 Install shift and selector cables -3-  on the support -2-  .
    2. 15.2 Install ball joints -1-  on exterior shift mechanism.
    G15509355Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Shift and selector cable on transmission

  16. Install drive shafts on the transmission side.
    1. 16.1 Fit and tighten new screws -Arrows-  between the drive shaft and transmission flange on the plates -1-  .

      Counter at the wheel. Get another person to help if necessary!

      > Initial tightening 40 Nm (29.5 ftlb.) 

      > Final tightening torque angle + 110° 

    G15509356Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Drive shafts

  17. Additional work for all-wheel drive vehicles:

    Install Cardan shaft.

    390219 REMOVING AND INSTALLING CARDAN SHAFT

  18. Install diagonal braces.
    1. 18.1 Position diagonal struts -A-  .
    2. 18.2 Fit and tighten screws -1-  on the mounting for the longitudinal arm.

      > Tightening torque 55 Nm (40.6 ftlb.) 

    3. 18.3 Fit and tighten new screws -2-  on the body using >9768 - electronic torque wrench, 2 - 100 Nm/1.5 - 74 ftlb.  .

      > Initial tightening 70 Nm (51.6 ftlb.) 

      > Final tightening + 90° 

      For the Cabriolet:  Diagonal brace to outer body

      > Tightening torque 30 Nm (22.1 ftlb.) 

    4. 18.4 Fit and tighten new screws -3-  on the rear-axle cross member.

      > Initial tightening 30 Nm (22.1 ftlb.) 

      > Final tightening + 90° 

G15509357Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Diagonal struts