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Home >> Subaru >> 2017 >> WRX STI Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Mechanical (2.0L)) >> Timing Chain Assembly >> Installation >> Timing Chain RH

Timing Chain RH

WARNING: This page is about a different variant/trim than selected.
NOTE:
  • Be careful that the foreign matter is not into or onto the assembled component during installation.
  • Apply engine oil to all component parts of the timing chain.
  1. Install timing chain LH. <Ref. to TIMING CHAIN LH , INSTALLATION, Timing Chain Assembly.>
  2. Install the chain guide RH to the front camshaft cap RH.

    Tightening torque: 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

    Fig 1: Removing Chain Tensioner Lever RH
    G10266778Courtesy of SUBARU OF AMERICA, INC.
  3. Prepare to attach the chain tensioner RH.
    1. Move the link plate (A) in the direction of arrow to press in the plunger (B).
      Fig 2: Pressing Plunger Of Chain Tensioner
      G08316951Courtesy of SUBARU OF AMERICA, INC.
    2. With a 2.5 mm (0.098 in) dia. stopper pin or a 2.5 mm dia. hex wrench inserted into the stopper pin hole, secure the plunger.
    NOTE: If the stopper pin hole on the link plate and the stopper pin hole on the chain tensioner are not aligned, check that the first notch of plunger rack (A) is engaged with the stopper tooth (B). If not engaged, retract the plunger a little so that the first notch of plunger rack (A) is engaged with the stopper tooth (B).
    Fig 3: Securing Plunger With Stopper Pin
    G08316952Courtesy of SUBARU OF AMERICA, INC.
  4. Make sure that the alignment marks of the crank sprocket, intake cam sprocket LH and exhaust cam sprocket LH are aligned to the positions as shown in the figure.
    Fig 4: Crank Sprocket And Intake/Exhaust Cam Sprocket LH Alignment Position
    G10266804Courtesy of SUBARU OF AMERICA, INC.
  5. Align the alignment marks of intake cam sprocket RH and exhaust cam sprocket RH to the positions as shown in the figure.
    CAUTION: To prevent valve damage, turn the intake cam sprocket RH and exhaust cam sprocket RH only within the range of zero-lift (in range where it can be turned lightly by hand).
    Fig 5: Intake/Exhaust Cam Sprocket RH Alignment Position
    G10266805Courtesy of SUBARU OF AMERICA, INC.
  6. Install the timing chain RH and the timing chain guide RH.
    1. Match the timing chain mark (blue) to the alignment mark of the crank sprocket.
    2. Match the timing chain mark (pink) to the timing mark position of the intake cam sprocket RH.
    3. Match the timing chain mark (pink) to the timing mark position of the exhaust cam sprocket RH.
    4. Install the timing chain guide RH.

    Tightening torque: 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

    Fig 6: Installing Timing Chain Guide RH
    G11576330Courtesy of SUBARU OF AMERICA, INC.
  7. Install the chain tensioner lever RH (A) and chain tensioner RH.

    Tightening torque: 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb) 

    Fig 7: Removing Chain Tensioner Lever RH
    G10266776Courtesy of SUBARU OF AMERICA, INC.
  8. Pull out the stopper pin from the chain tensioner RH.
    CAUTION: Confirm the following before pulling out the stopper pin.
    • Matching of the timing chain mark (blue) to the alignment mark of the crank sprocket.
    • Matching of the timing chain mark (pink) to the timing mark position of the intake cam sprocket RH.
    • Matching of the timing chain mark (pink) to the timing mark position of the exhaust cam sprocket RH.
    Fig 8: Locating Timing Chain Alignment Marks
    G11576332Courtesy of SUBARU OF AMERICA, INC.
  9. Make sure that the alignment marks of the cam sprocket and crank sprocket are aligned to the positions as shown in the figure.
    Fig 9: Cam Sprocket And Crank Sprocket Alignment Position
    G11576333Courtesy of SUBARU OF AMERICA, INC.
  10. Using the ST, turn the crankshaft clockwise, and make sure that there are no abnormal conditions.
    CAUTION: Always make sure to perform this confirmation.

    ST 18252AA000 CRANKSHAFT SOCKET

    Fig 10: Turning Crankshaft Clockwise Using ST
    G10266810Courtesy of SUBARU OF AMERICA, INC.
  11. Install the chain cover. <Ref. to INSTALLATION , Chain Cover.>