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Home >> Honda >> 2017 >> HR-V EX, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System / Engine Mechanical - Service, Testing And Troubleshooting >> Inspection >> Camshaft Inspection >> Inspection
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Camshaft Inspection: Inspection

  1. Rocker Arm Assembly - Remove
  2. Rocker Arm Assembly - Disassemble 
  3. Camshaft Sprocket - Remove
  4. Camshaft End Play - Inspect
    Fig 1: Rocker Shaft Holders / Lost Motion Holder Bolt Tightening Sequence With Torque Specifications
    GHH435245Courtesy of HONDA, U.S.A., INC.
      1. Put the rocker shaft holders and the lost motion holder on the cylinder head.

    2. Tighten each bolts two turns at a time in sequence.

    3. Seat the camshaft by pushing it toward the camshaft pulley end of the cylinder head.
    GHH435246Courtesy of HONDA, U.S.A., INC.
    		 4. Zero the dial indicator against the end of the camshaft. Push the camshaft back and forth, and read the end play. If the end play is beyond the service limit, replace the thrust cover and recheck. If it is still beyond the service limit, replace the cylinder head. If it is still beyond the service limit, replace the camshaft.

    Camshaft End Play 
    Standard (New):  0.05-0.25 mm (0.0020-0.0098 in) 
    Service Limit:  0.4 mm (0.016 in) 
  5. Camshaft - Remove
  6. Camshaft - Inspect
    GHH435247Courtesy of HONDA, U.S.A., INC.
    		 1. Wipe the camshaft clean, then inspect the lift ramps. Replace the camshaft if any lobes are pitted, scored, or excessively worn.

    2. Measure the diameter of each camshaft journal.
    GHH435248Courtesy of HONDA, U.S.A., INC.
    		 3. Zero the dial indicator to the journal diameter.
    GHH435249Courtesy of HONDA, U.S.A., INC.
    		 4. Clean the camshaft bearing surfaces in the cylinder head. Measure the inside diameter of each camshaft bearing surface, and check for an out-of-round condition:
    • If the camshaft-to-holder clearance is within limits, go to step 6.
    • If the camshaft-to-holder clearance is beyond the service limit and the camshaft has been replaced, replace the cylinder head.
    • If the camshaft-to-holder clearance is beyond the service limit and the camshaft has not been replaced, go to step 5.

    Camshaft-to-Holder Oil Clearance 
    Standard (New):  0.045-0.084 mm (0.00177-0.00331 in) 
    Service Limit:  0.15 mm (0.0059 in) 
    GHH435250Courtesy of HONDA, U.S.A., INC.
    		 5. Check the total runout with the camshaft supported on V-blocks:
    • If the total runout of the camshaft is within the standard, replace the cylinder head.
    • If the total runout is beyond the standard, replace the camshaft and recheck the camshaft-to-holder oil clearance. If the oil clearance is still out of standard, replace the cylinder head.

    Camshaft Total Runout 
    Standard (New):  0.03 mm (0.0012 in) max. 
    GHH435251Courtesy of HONDA, U.S.A., INC.
    		 6. Measure the cam lobe height.

    Cam Lobe Height Standard (New): 
    PRI: Primary SEC: Secondary
    IN: Intake EX: Exhaust
    C/C: Cam Chain
    INTAKE EXHAUST
    USA and Canada models  PRI  35.866 mm (1.41204 in)  35.870 mm (1.41220 in) 
    SEC A  30.818 mm (1.21330 in) 
    SEC B  35.689 mm (1.40508 in) 
    Mexico models  PRI  35.979 mm (1.41649 in)  35.870 mm (1.41220 in) 
    SEC A  35.471 mm (1.39649 in) 
    SEC B  36.027 mm (1.41838 in) 
  7. All Removed Parts - Install
    1. Install the parts in the reverse order of removal.
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