Robin America EH63 Service Manual page 78

TAPPET
* Stem outside dia.
* Guide inside dia.
* Tappet guide clearance
VALVE SPRING FREE LENGTH
VALVE SEAT ANGLE (IN. EX.)
* Valve cutter angle (a)
* Valve contact width (b)
Compression pressure
Fuel consumption Continuous load / 3600 rpm
Capacity
Lubricant Efficacy
Consumption
1 Above values are rough standard.
They will be changed by the engine condition and the environment.
2 Oil consumption has been measured under-following condition:
• Good break-in operation has been finished.
• Oil : 10W-30 (Grade SE)
• Load : Continuous load / 3600 rpm
ITEM
(kg / cm
(L/Hr)
(L)
(mL)
(mL / Hr)
– 75 –
STD
EH63
EH64
8.954 - 8.979
(0.3525 - 0.3535)
EH65
EH72
EH63
EH64
9.00 - 9.015
(0.3543 - 0.3549)
EH65
EH72
EH63
EH64
0.021 - 0.061
(0.000827 - 0.002402)
EH65
EH72
EH63
EH64
39.5
(1.5551)
EH65
EH72
EH63
a: 90˚
EH64
b: 0.7 - 1.0
EH65
(0.028 - 0.039)
EH72
EH63
2
470 rpm )
5.5
12 - 15
Unit : mm(in.)
Limit
8.924
(0.3513)
9.08
(0.3575)
0.15
(0.0059)
— — —
2.0
(0.079)
EH64 EH65 EH72
12
5.8 6.0 7.0
1.55
620
15 - 20