Robin EH18V OHV - 12-2 Torque Specifications; 12-3 Oil Grade Chart

Unit : mm (in)
ITEM STD
0 Valve cutter angle(a)
0 Valve contact width(b)
a: 90"
b
: 0.7 - 1 .O
(0.028 - 0.039)
a
Limit
2.0
(0.079)
12-2 TORQUE SPECIFICATIONS
TIGHTENING TORQUE
kg cm
ft= Ib
N*m
DESCRIPTION
Cylinder head bolts
12.2
-. 14.4 16.6 - 19.6
, 170 -200
Connecting rod cap bolts
16.6
- 19.5 22.5 - 26.5 230 - 270
Flywheel nut
5.7
- 7.2 7.8 - 9.8 80 - 100 Main bearing cover bolts
43 - 47
58.8
- 63.7 600 - 650
New spark plug
16.6
- 19.5 22.6 - 26.5 230 - 270
Retightening
8.7
- 10.9 11.8-14.7
120- 150
Spark plug
12-3 OIL GRADE CHART
Single
Lubricant
Quality
grade
Recommended oil viscosity for the embient temparature
I
5w 1
T
I I
I
10 w
20 w
I
## 20
# 30
1
1
I
I
I I
1
I
I I I I
I
low-30
I
- 20
-4
- 10
14
0
32
10
50
20
68
30
86
40 "C
104 "F
1
Use oil classified as SC or higher.
Multi-grade oil tends to increase its consumption at high ambient temperature.
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