Service manual

【6-9】
E
NGIN
E
CAMSHAFT HOLDER INSPECTION
● Inspect the camshaft holder for wear or damage.
● Inspect the rocker arm shaft for blue discoloration or
grooves.
● If any defects are found, replace the rocker arm shaft with a
new one and then inspect lubrication system.
● Inspect the rocker arm bore, cam lobe contact surface and
adjuster surface for wear/pitting/scratches/blue
discoloration. If any defects are found, replace the rocker
arm shaft with a new one and then inspect the lubrication
system.
● Measure each rocker arm shaft O.D.
Service limits: ψ9.96
● Measure the I.D. of each valve rocker arm.
Service limits: ψ10.04 above
● Measure arm to shaft clearance.
Service limits: 0.12 above
● Replace as a set if out of specification.
CAMSHAFT HOLDER ASSEMBLY
Reverse the “CAMSHAFT HOLDER DISASSEMBLY”
procedures.
NOTE:
Align the cross cutout on the exhaust valve rocker arm shaft
with the bolt or the camshaft holder
CAMSHAFT INSPECTION
● Check each camshaft bearing for play or damage. Replace
the camshaft assembly with a new one if the bearings are
noisy or have excessive play.
● Inspect camshaft lobes for pitting/scratches/blue
discoloration.
● Measure the cam lobe height.
Service Limits:
IN : 34.14mm replace if below
EX: 34.01mm replace if below
If any defects are found, replace the camshaft with a new one
and then inspect lubrication system.