Honda GX120UT2 Service Manual page 210

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REDUCTION UNIT
REDUCTION UNIT DISASSEMBLY/
REDUCTION UNIT
ASSEMBLY
CHAIN (1/2) CAMSHAFT P.T.O. TYPE
(*) R efer to page of base shop manual (GX120UT2/
160UT2/200UT2).
D rain the engine oil ( page 3-3*).
PISTON A ssy .
(O uter surface and big end bearing )
INSTALLATION:
I nstall the piston A ssy . to the cylinder barrel with
the mark [1] on the piston head toward the push
rod hole [2] of the cylinder head .
[1]
[2]
DOWEL PIN
OIL SEAL
(L ips )
CRANKSHAFT
BEARING (6205)
CONNECTING ROD BOLT (2)
(T hreads and seating surface )
GX160: (6 x 34 mm )
10 N· m (1.0 kgf · m , 7 lbf · ft )
GX200: (7 x 34 mm )
12 N· m (1.2 kgf · m , 9 lbf · ft )
INSPECTION: ( page 15-3)
INSTALLATION:
A lign the timing marks [1] on the crankshaft [2] and
camshaft [3] sprockets , install the drive chain [4]
onto the sprockets , and install them into the cylinder
barrel as a set .
[2]
[1]
CONNECTING ROD LOWER
(B ig end bearing )
INSTALLATION:
S et the connecting rod lower with the oil dipper toward the camshaft .
CYLINDER BARREL
(C ylinder inner surface )
INSPECTION: ( page 14-6 * )
CRANKSHAFT
BEARING (6304)
OIL FILLER CAP
[3]
(W ith oil level gauge )
OIL FILLER CAP PACKING
CHECK:
R eplace if necessary .
[4]
CRANKSHAFT
(P in and gear teeth )
INSPECTION: ( page 14-6 * )
INSTALLATION:
B e careful not to damage the oil seal lips .
VALVE LIFTER
(P ivot , pivot end and slipper surface )
REMOVAL:
M ark the valve lifters so that the intake and
exhaust sides can be distinguished .
INSTALLATION:
A ttach the valve lifters to the cylinder barrel
immediately before installing the camshaft .
CAMSHAFT (C am profile and journal )
INSPECTION: ( page 14-6 * )
BOLT (8 x 32 mm ) (6)
CRANKCASE COVER
INSTALLATION:
B e careful not to damage the oil seal lips .
DRIVE CHAIN
P.T.O. SHAFT
BEARING (6205)
CASE COVER
PACKING
P.T.O. SHAFT
OIL SEAL
(L ips )