Rato R160, Service Manual

Page: 11 / 78

5
1-3 SERVICE LIMIT
1-3-1 R100
Parts Item Standard Value Service Limit
Gasoline
Engine
Maximum Speed (No load)
Cylinder Compression
3850rpm
0.9Mpa （ 1400rpm ）
--
Cylinder Cylinder Bore I.D. 56-56.015mm 56.165
Cylinder
Head
Warpage -- 0.1
Piston
Skirt O.D.
Piston-to-Cylinder Clearance
Piston Pin Bore I.D.
Piston Pin O.D
Piston Pin-to-Piston Pin Bore Clearance
55.975-55.985mm
0.015-0.04mm
14 .002-14.008mm
13.992-13.998mm
0.004-0.016mm
55.9
0.12
14.048
13.954
0.03
Piston Rings
Ring Side Clearance ： Top /Second Ring
Oil Ring
Ring End Gap: Top /Second Ring
Oil Ring
Ring Width ： Top /Second/Oil Ring
0.03-0.07mm
--
0.15-0.3mm
0.1-0.6mm
1.5mm
2.5mm
0.15
--
1
1
1.37
2.37
Connecting
Rod
Small End I.D
Big End I.D
Big End Oil Clearance
Small End Side Clearance
14.011-14.022mm
23.02-23.03mm
0.035-0.055mm
0.1-0.7mm
14.05
23.05
0.12
1.1
Crankshaft Crankshaft Pin O.D 22.975-22.985mm 22.945
Valves
Valve Clearance
Stem O.D
Guide I.D
Stem-to-Guide Clearance
Seat Width
Spring Free Length
IN
EX
IN
EX
IN
／
EX
IN
EX
0.15±0.02mm
0.20±0.02mm
5.465-5.48mm
5.445-5.46mm
5.50-5.512mm
0.015-0.052mm
0.015-0.052mm
0.8mm
25.0mm
--
--
5.318
5.275
5.572
0.1
0.12
2.0
24
Camshaft Cam Height IN 29.4mm 29.2