Kolpin Powersports 180??, Руководство по обслуживанию

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FIG-18. Engine Disassembly
CYLINDER HEAD / VALVES
SERVICE INFORMATION
GENERAL
This section describes the maintenance of cylinder head,
valves, camshaft and associated parts
The engine must be removed from the frame to service
cylinder head.
Camshaft lubrication oil is fed to the cylinder head
through an oil orifice in the engine case
Before installing the cylinder head be sure the orifice is
not clogged and the gasket, O-ring and dowel pins are
in place.
SPECIFICATIONS
TORQUE VALUES
Cylinder head bolts
Camshaft holder flange nuts
Tappet adjusting nut
8~12 n-m (0.8~12 kg-m)
20~24 n-m (2.0~2.4 kg-m)
9~12 n-m (0.9~1.2 kg-m)
ITEM STANDARD SERVICE LIMIT
Cylinder compression 12±0.5 kg/cm
2
---------
Cam lobe height IN
EX
25.965/27.195
25.810/27.20
25.57/26.7
25.40/26.80
Rocker arm I.D. 10.000-10.018 10.10
Rocker arm shaft O.D. 9.972-9.987 9.91
Valve spring free length IN
EX
32.3
35.0 31.2
34.1
Valve stem O.D. IN
EX
4.975-4.990
4.955-4.970 4.90
4.90
Valve guide I.D. IN/EX 5.000-5.012 5.30
Stem-to-guide clearance IN
EX
0.010-0.037
0.030-0.057 0. 08
0.10
Valve seat width IN
EX
1. 0
1.0
1. 8
1.8