Power Unit Mechanical: 1D-50
NOTE
After tightening crankcase bolts, check to be
sure that crankshaft rotates smoothly when
turned by hand.
Cylinder head
Refer to “Cylinder Head Removal and Installation”
(Page 1D-32).
Timing chain
Refer to “Timing Chain, Chain Tensioner and Camshaft
Sprockets Removal and Installation” (Page 1D-20).
Oil pump
Refer to “Oil Pump Removal and Installation” in Section
1E (Page 1E-3).
Powerhead
Refer to “Power Unit Removal and Installation”
(Page 1D-11).
Cylinder, Piston and Piston Ring Inspection and
Servicing
Z9J0111406021
NOTE
If cracks, excessive wear or other damage is
found on any component, replace
component.
Cylinder Distortion
Using a straightedge and thickness gauge, measure
cylinder distortion (gasket surface) at a total of six
locations as shown.
If measurement exceeds service limit, resurface or
replace cylinder.
Special tool
(A): 09900–20803 (Thickness gauge)
Cylinder distortion
Service limit: 0.03 mm (0.0011 in.)
Water Jackets
Check water jackets.
If clogged or obstruction is found, clean water jacket.
Driven Gear Bearing
Inspect driven gear bearing. Replace bearing if pitted,
noisy or rough.
I9J011140241-01
I9J011140242-03
(A)
I9J011140244-01
I9J011140245-01
I9J011140246-01
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