Mitsubishi 4DQ50 - Page 96

Section Units
Parts
~
Oheckq, Items
Naminal
Setting
Standards
L~it ,of
pur
Olearance
til
66
Injection starting
,,~
±5kg/cm
t
11Ok&/cm
2
41
pressure
-
01
COl
Spray angle
.2
8
..
67
'
40
0
~
(main injection)
'2
68
I Oi I-tightness of needle
Seats must not leak UIJier ~~~
....
_IVA "' .. ".'"
Pistc~:nd
69
~r ~ ~ter diams.
a st a c earance
22IP
+O.001-+Q.021
P~o{eod ani
70
~er ~::rt~ diams.
sta c earance
SIP
-0.005-0.015
Tappet a~le
71
i ~f = o~tel diams.
star c earance
20IP
+O.018-H).056
~rR~rcUir
72
Innrr ~o~ter diams·
a 5t r c earance
7IP f+o.013 -i{). 071
Roller
73
'fflfer ~~ef, diams.
a sta c earance
7IP
f+o.033 -+0. CB5
Roller pin
74
Outer diam.
1SIP 0--0.027
No ilir leak in any
75
ilit-tightness test
ass y. Leak from
between re:,h rod and
hous
i~c~' than
c
In.
Less than 25 not more
Priming punp
76
Suction capacity
than 30
strokes
strokes
Shorter than
nOt more
Pump body
77
Suction capacity
45 sec.
than
E
50
sec.
41
..
ell
»
78
Delivery pressure .8~.2.kg/
Ditto left
til
~
cmz
-
~
Q.
79
Del
ivery rate
More~n
~OOc:c/lTlin.
"'"
S
900c in.
.-
Oam shaft
80
Longi tyd ina I Aiam.
32
0--0.1
..
of Drofde
(,),
41
Bearings 81
'2 Oam shaft play
Axial
0.03-0.05
O. 1
....
Pump body
82
Tappet
hole in~r diam.
24IP
!+O. 02 -+0. 062
tappet outre dlam.
and standard clearance
83
'Pin hole inner diam ••
7IP
f+O.0
1
3-+o.050
pin outer diam.
aild standard clearance
floating bush
lI:Jner ~lam ••
7IP
1+0 .033-+0 . 78
84
BIn OIl Mil
lam. a
st~ar
Tappets
1-
Floating
c earance
Itrller inner
bushes and
lam.,
85
rollers
floatiM bush
1 1
IP
+0.050-+0.097
m
er
= .
. ' st ard
c earance
I--
86
Roller outer
diam.
17IP
0--0.027
- 88-