EH12, EH17, EH25 - Small Engine Discount
EH12, EH17, EH25 - Small Engine Discount
EH12, EH17, EH25 - Small Engine Discount
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ITEM<br />
T<br />
STD<br />
<strong>EH12</strong>/17/25<br />
Limit<br />
Unit: rnrn (in)<br />
VALVE SEAT ANGLE(IN. EX.)<br />
0 Valve cutter angle(a)<br />
0 Valve contact width(b)<br />
a: 90"<br />
b : 0.7 - 1 .O<br />
(0.028 - 0.039)<br />
2.0<br />
(0.079)<br />
12-2 TORQUE SPECIFICATIONS<br />
<strong>EH12</strong>/17type<br />
DESCRIPTION<br />
Cylinder head bolts - 270<br />
- 26.5 230 16.6 - 19.5 22.5<br />
kg-cm<br />
TIGHTENING TORQUE<br />
Nom<br />
ft-lb<br />
Connecting rod cap bolts<br />
<strong>EH12</strong><br />
90-115<br />
<strong>EH17</strong><br />
8.8-11.2 16.6-19.6 170-200<br />
<strong>EH17</strong> <strong>EH12</strong><br />
12.2-14.4 6.<br />
Flywheel nut 600 - 650<br />
- 63.7<br />
43 - 47 58.8<br />
Main bearing cover bolts<br />
80 - 100<br />
- 9.8<br />
5.7 - 7.2 7.8<br />
Spark plug<br />
New spark plug<br />
Retightening<br />
120 - 150<br />
- 270<br />
11.8 - 14.7<br />
- 26.5 230<br />
8.7 - 10.9<br />
16.6 - 19.5 22.6<br />
<strong>EH25</strong> type<br />
DESCRIPTION<br />
kg cm<br />
TlGHTENfNG TORQUE<br />
N-m<br />
ft- Ib<br />
Cylinder head bolts<br />
340 - 420<br />
33.3 - 41.2<br />
24.6 - 30.3<br />
Connecting rod cap bolts<br />
225 - 275<br />
21.3 - 26.9<br />
16.3 - 19.8<br />
Flywheel nut<br />
600 - 650<br />
58.8 - 63.7<br />
43 - 47<br />
Main bearing cover bolts<br />
170- 190<br />
16.7 - 18.6<br />
12.3 - 13.7<br />
Spark plug<br />
New spark plug 120- 150 11.8 - 14.7 8.7 - 10.9<br />
Retightening 230 - 270 22.6 - 26.5 16.6 - 19.5<br />
- 69 -
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