Shibaura ST330 - Page 70

66
Unit Part Inspection Items
Standard
Dimension
Standard Value
To be
Repaired
Allowable
Limit
Remarks
Valve clearance (Intake/exhaust) 0.2 0.5
Valve
spring
Spring strength
N {kgf}
79.4 {8.1} 68.6 {7}
Free height 35 33.5
187Y
Less than 1.2 2.0
Overall length 177.8 177.6 – 178.0
Outer diameter
∅
6.3
Wear, rocker arm shaft
∅
14.96
∅
14.95 – 14.97 ∅14.87
Clearance between rocker arm and
shaft
0.032 – 0.068 0.2
Oil
clearance
Discharge rate： (ℓ/min)
Engine speed 2500rpm
Discharge pressure 294－490 kP
{3－5 kgf/c ㎡}
Oil temperature 50℃－80℃(SAE30)
16.2
Oil pressure switch operating pressure
kPa {kgf/cm
2
}
29.4 {0.3}
19.6 – 39.2
{0.2 – 0.4}
Relief pressure kPa {kgf/cm
2
}
245 – 343
{2.5 – 3.5}
Lubrication oil capacity
(ℓ)
4.5
With filter
change
5.0 ℓ
Tip clearance (rotor-to-vane) 00.1 – 0.15 0.25
Side clearance (rotor-to-cover) 0.1 – 0.15 0.2
Type
104135－3050 ※BASC.
Injection
timing
Before T.D.C.
20－22°
Piston movement
before T.D.C.
3.539－4.267
※ BASC. is BOSCH AUTOMOTIVE SYSTEM CORPORATION
ROCKER
ARM
LUBRICATION SYSTEM
PUSH ROD
OIL PUMP
VA LV E
VA LV E S Y S T E M
INJECTION PUMP
FUEL SYSTEM