Honda Fit manuals

Honda Fit: Camshaft Inspection

  1. Remove the camshaft sprocket.

  1. Remove the rocker arm assembly, then disassemble the rocker arm.

  1. Put the rocker shaft holder bridge on the cylinder head, then tighten the bolts to the specified torque.

    Specified Torque

    6 x 1.0 mm

     

    15 NВ·m (1.5 kgfВ·m, 11 lbfВ·ft)

     

    9.8 NВ·m (1.0 kgfВ·m, 7 lbfВ·ft)

  1. Seat the camshaft by pushing it toward the rear of the cylinder head.

  1. 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):

    0.05пјЌ0.25 mm (0.0020пјЌ0.0098 in)

    Service Limit:

    0.5 mm (0.020 in)

  2. Remove the camshaft.

  3. Wipe the camshaft clean, then inspect the lift ramps. Replace the camshaft if any lobes are pitted, scored, or excessively worn.

  1. Measure the diameter of each camshaft journal.

  1. Zero the gauge (A) to the journal diameter.

  1. 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 12.

    • 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 11.

    Camshaft-to-Holder Oil Clearance

    Standard (New):

    0.045пјЌ0.084 mm (0.00177пјЌ0.00331 in)

    Service Limit:

    0.100 mm (0.00394 in)

  1. Check the total runout with the camshaft supported on V-blocks:

    • If the total runout is within the standard, replace the cylinder head.

    • If the total runout is not within the standard, replace the camshaft, and recheck the oil clearance. If the oil clearance is still out of tolerance, replace the cylinder head.

    Camshaft Total Runout

    Standard (New):

    0.03 mm (0.0012 in) max.

  1. Measure the cam lobe height.

    Cam Lobe Height Standard (New)

    INTAKE

    EXHAUST

    PRI

    35.241 mm (1.38744 in)

    35.471 mm (1.39649 in)

    SEC

    36.173 mm (1.42413 in)

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