WÄRTSILÄ 41508 Instruction Manual page 76

34SG-200314-06
Part, measuring point
Bore diameter in piston
Compression ring end gaps
Oil scraper ring end gaps
Piston ring height clearance:
Compression ring I
Compression ring II
Piston ring groove height:
12 Valve guide diameter assembled
Valve stem diameter
Valve stem clearance
Valve seat deviation relative guide
(max. value)
Inlet valve seat bore in cylinder head
Exhaust valve seat bore in cylinder head
Prechamber nozzle holes
13 Intermediate gear of camshaft drive
bearing clearance
Bearing diameter
Bearing journal
Camshaft driving gear backlash:
Crankshaft gear wheel (1)/
intermediate gear wheel (3)
Intermediate gear wheel /
large intermediate gear wheel (10)
Small intermediate gear wheel (11)/
camshaft gear wheel (12)
14 Valve tappet, diameter
Guide diameter
Diameter clearance
Tappet roller bore diameter
Bush diameter, outer
Bush diameter, bore
Tappet pin diameter
Bearing clearance roller-bush
bush-tappet pin
Rocker arm bearing diameter, in situ
Bearing journal diameter
Bearing clearance
Yoke pin diameter
Yoke bore diameter
Diameter clearance
Adjustments, Clearances and Wear Limits
Drawing dimension (mm)
(C95)
(C86)
(C87)
Oil scraper ring
Groove I
Groove II
Groove III
outer bore
inner bore
axial clearance
in situ
diameter
Max. Min.
150.022 150.010
8.160 8.130
6.120 6.090
8.080 8.050
24.135 24.100
24.000 23.979
0.10
112.022 112.000
122.025 122.000
110.022 110.00
6.05 5.95
120.157 120.102
120.000 119.978
79.940 79.910
80.046 80.00
38.025 38.00
37.975 37.959
30.028 30.007
29.993 29.980
70.109 70.032
70.000 69.981
29.935 29.922
30.021 30.000
Normal
Wear limit
clearance
(mm)
(mm)
150.050
1.00 -1.30
1.30 -1.60
1.20 -1.50
0.143-0.195 0.5
0.100-0.145 0.5
0.063-0.105 0.3
8.50
6.45
8.30
24.25
23.95
0.100-0.156 0.30
6.50
Section
0.102-0.179 10.2.2a
0.33 -0.52 0.70
0.148-0.716
0.178-0.582
0.178-0.582
0.060-0.136
37.90
30.08
0.025-0.066
0.014-0.048
70.4
0.032-0.128
30.1
0.065-0.099