10-14
CAM PULLEY/CRANKSHAFT/ PISTON/CYLINDER HRX217HYA • HRX217HZA
10. CAMSHAFT/CYLINDER/PISTON/
VALVE INSPECTION
CAM LOBE HEIGHT
Measure the cam lobe height.
If the measurement is less than the service limit, replace the
camshaft.
CAMSHAFT BORE I.D.
Measure the camshaft bore I.D.
If the measurement is more than the service limit, replace the
camshaft.
CAMSHAFT DECOMPRESSOR
Carefully inspect the decompressor weight position and confirm
that it is fully retracted. The retracted position is where the
decompressor pin is on the side of the slot closest to the camshaft
bore.
If the weight is fully retracted, operate the decompressor by using a
pick tool to move the decompressor weight to the opposite end of
the slot, and then gently releasing. Do not push on the
decompressor pin with the pick tool. Only push on the
decompressor weight. It is normal for the decompressor to lock up
when pushing on the pin and not the weight.
Repeat several times. If the weight fails to completely return on its
own at any time (by spring force), replace the camshaft and
properly set the cam timing.
INTAKE
STANDARD: 34.353 – 34.553 mm (1.3525 – 1.3604 in)
SERVICE LIMIT: 34.328 mm (1.3515 in)
EXHAUST
STANDARD: 34.358 – 34.558 mm (1.3527 – 1.3605 in)
SERVICE LIMIT: 34.333 mm (1.3517 in)
STANDARD: 10.090 – 10.120 mm (0.3972 – 0.3984 in)
SERVICE LIMIT: 10.140 mm (0.3992 in)
EXHAUST CAM LOBE
INTAKE CAM LOBE
DECOMPRESSOR
PIN
DECOMPRESSOR
WEIGHT
RETRACTED
POSITION
ENGAGED
POSITION
BORE
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