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Home >> Toyota >> 1966 >> Crown Not Available Trans >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> TOYOTA Engines - (3R-B & 3R-C Engines) 4 Cylinder >> 1965-70 TOYOTA (3R-B & 3R-C Engines) 4 Cylinder >> Rocker Arm Assembly

Rocker Arm Assembly

  1. Remove valve cover and bolts securing rocker arm assembly to cylinder head. Remove rocker arm assembly. Remove clips from ends of rocker shaft and remove support stands, rocker arms and springs.
  2. Thoroughly clean and inspect all components. Check clearance between rocker arms and shaft, if clearance is excessive, replace rocker arm shaft or bushing in rocker arm.
  3. To replace bushing, use a suitable replacement tool (09222-30010) to remove and install bushing in rocker arm. Oil new bushing before pressing in and install from front.
    Fig 1: Rocker Arm Bushing Replacement
    G09326236Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. With new bushing installed in rocker arm, ream bushing to correct clearance with rocker arm shaft (.0004-.0016"). If valve contact surface of rocker arm shows excessive wear, replace rocker arm. If contact surface is slightly worn, reface with a rocker arm refacing machine.
  5. When assembling rocker arm assembly, make sure hole for support stand lock screw in rocker arm shaft is up. Thoroughly oil all components before assembly. Tighten retaining bolts to specifications when installing and adjust valve clearance.
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