Service Manual — page 273 of 715

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ENGINE TOP END 5-23
Camshaft, Camshaft Chain

• Before  installing the camshaft caps and upper chain
  guide, install the camshaft chain tensioner body tem-
    porarily (see Camshaft Chain Tensioner Installation).
•   Install the camshaft caps and upper camshaft chain guide
    [A] as shown.
      Identification No. 1 ∼ 4 (Camshaft Cap) [B]
•   First tighten the all camshaft cap bolts and upper
    camshaft chain guide bolts evenly to seat the camshaft
    in place, then tighten all bolts following the specified
    tightening sequence.
    Torque - Camshaft Cap Bolts [1 ∼ 18]: 12 N·m (1.2 kgf·m,
               106 in·lb)
             Upper Camshaft Chain Guide Bolts [19, 20]: 12
               N·m (1.2 kgf·m, 106 in·lb)

• Install the camshaft chain tensioner (see Camshaft Chain
  Tensioner Installation).
• Turn  the crankshaft 2 turns clockwise to allow the ten-
  sioner to expand and recheck the camshaft chain timing.
• Install the removed parts (see appropriate chapters).