Yanmar 3JH4E Service Manual page 237

(2) 4JH4E service data
Part code (Back No.)
Adjustment SPEC
Item
Fuel valve (Valve pressure)
Nozzle type (ID mark)
Fuel injection pipe
Injection Starting
adjustment
Rated load
Torque rise
Hi-idle
Idle
Plunger stroke
Plunger dia.
Suction volume of delivery valve
Pre-stroke
Top clearance
Governor
Spring constant
spring
Free length
Pump speed Ns
Average injection
volume Qs
Pump speed No
Injection volume Qo
Variation
Pump speed N
T
Injection volume Q
T
Nonunifomity
Pump speed N
Hi
Injection volume Q
Hi
Pump speed Ni
Qi
Nonunifomity
729670-51450 (SH79)
ENGINE SPEC
VBG (220)
159P185VAD1
mm
Ø1.6 x 400
-1
200
(min )
3
50
(mm /st)
-1
(min )
1500
3 33.1 ± 0.75
(mm /st)
± 3
%
-1
-
(min )
3
-
(mm /st)
% -
1660
-1
(min )
3
6 - 7
(mm /st)
-1
400
(min )
3
9 - 10
(mm /st)
± 10
%
(mm)
(mm)
3
(mm )
(mm)
(mm)
N/cm
(kgf/cm)
(mm)
217
6. Fuel Injection equipment
SERVICE STD
(170)
DN-12SD12
Ø2 x 600
200
55
1500
57.5 ± 0.75
± 3
-
-
-
+15
+15 1660
-10
-10
18 - 19
400
7 - 8
± 20
8.0
Ø8
36
3.0
0.5
2.76 (0.281)
41