WÄRTSILÄ Vasa R22, Instruction Manual

Page: 89 / 297

Part, measuring point
Drawing dimension (mm) Normal
clearance
(mm)
Wear limit
(mm)
Max. Min.
Piston ring gap (clamped ø220)
Compression rings
Oil scraper rings
0.65-0.95
0.80-1.05 2.05
Piston ring height:
Compression ring 1
Compression ring 2
Compression ring 3
Oil scraper ring
3.99
3.99
3.99
5.99 3.978
3.978
3.978
5.975 0.120-0.152
0.070-0.102
0.070-0.102
0.040-0.075
Piston ring groove height Groove I
Groove II
Groove III
Groove IV
4.13
4.08
4.08
6.05 4.11
4.06
4.06
6.03 4.40
4.40
4.40
6.30
Piston clearance at bottom in cross
direction of engine 0.115-0.190
Corresponding piston diameter 219.885 219.855
Crankshaft oil slinger (driving end)
Axial clearance:
radial clearance around crankshaft flange:
0.39-1.03
0.62-0.93
12 Valve guide diameter 16.095 16.075 16.200
Valve stem diameter 16.000 15.982 15.97
Valve stem clearance 0.075-0.113 0.20
Valve seat deviation relative guide
(max. value) 0.10
Inlet valve seat bore in cylinder head 78.019 78.000
13 Intermediate gear of camshaft drive
bearing clearance
axial clearance
0.03-0.106
0.15-0.35
0.20
0.50
Bearing diameter in situ 60.046 60.00
Bearing journal diameter 59.97 59.94
Camshaft driving gear backlash:
Crankshaft gear
- intermediate gear
0.10-0.45
Intermediate gear
-camshaft gear 0.10-0.45
Base tangent length:
- crankshaft gear 99.781/7 99.725/7 99.60
- large intermediate gear 146.022/10 145.964/10 14.00
- small intermediate gear 99.853/7 99.798/7
- camshaft gear 130.704/9 130.648/9
*) Allowed minimum diameter= 189.920mm.
Maximum allowed difference between max.D and min.D= 0.10 mm.
22-9601 Adjustments, Clearances and Wear limits 06/II
VASA 22 06-3