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Home >> Subaru >> 2017 >> Forester 2.0XT Touring >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical (H4DOTC) >> Timing Chain Assembly >> Removal >> Timing Chain RH

Timing Chain RH

NOTE: When replacing a single part, perform the work with the engine assembly installed to body.
  1. Remove the chain cover. Ref. to MECHANICAL (H4DOTC)>Chain Cover>REMOVAL .
  2. Using ST and by turning the crankshaft, align the alignment marks of crank sprocket, intake cam sprocket RH and exhaust cam sprocket RH to the positions as shown in the figure.
    NOTE: If the alignment marks are aligned to the positions as shown in the figure, the crankshaft key is located at six o'clock position.

    ST 18252AA000 CRANKSHAFT SOCKET 

    Fig 1: Locating Alignment Marks Of Crank Sprocket
    G11266841Courtesy of SUBARU OF AMERICA, INC.
  3. Push down the chain tensioner lever RH as shown in the figure, and insert a 2.5 mm (0.098 in) dia. stopper pin or a 2.5 mm dia. hex wrench into the stopper pin hole in the chain tensioner RH to secure the plunger (A).
    Fig 2: Pushing Down Chain Tensioner Lever RH
    G10266775Courtesy of SUBARU OF AMERICA, INC.
  4. Remove the chain tensioner RH, and remove the chain tensioner lever RH (A).
    Fig 3: Locating Chain Tensioner RH Bolts
    G11266843Courtesy of SUBARU OF AMERICA, INC.
  5. Remove the chain guide RH, and remove the timing chain RH (A).
    CAUTION:
    • If the timing chain RH is not installed, the intake camshaft RH and exhaust camshaft RH are kept at zero-lift position. All cams on the camshaft are not pressing down the roller rocker arm (intake valve and exhaust valve). (Under this condition, all valves remain unlifted.)
    • Intake camshaft RH and exhaust camshaft RH can be independently rotated with the timing chain RH removed. When the intake valve and exhaust valve lift at the same time, the valve heads contact each other and valve stem may bend. Do not turn it to the outside of range of zero-lift (in range where it can be turned lightly by hand).
    NOTE: To avoid mixing with LH side, keep the removed part in order.
    Fig 4: Locating Chain Guide RH
    G11266844Courtesy of SUBARU OF AMERICA, INC.
  6. Remove the chain guide RH from the front camshaft cap RH.
Fig 5: Locating Chain Guide RH From Front Camshaft Cap RH
G10266778Courtesy of SUBARU OF AMERICA, INC.
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