Mitsubishi 4DQ5 Service Manual Page 61
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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2.
Priming the fuel system
(1) Unlock the priming pump by turning its knob
counterclockwise.
(2) Loosen the air vent plugs, and operate the pump
until overflowing fuel no longer carries air bubbles.
(3) Tighten the air vent plugs while pressing the pump
knob downward.
(4) Lock the pump by turning the knob clockwise
while pressing it downward.
3. Adjusting the injection timing
The engine with RUV governor
(1) Alignment marks (line marks) are provided on the
pump body and flange plate. Make sure that
these marks are lined up. With the pump gear and
idler properly positioned in their meshed condition
inside the timing gear case, that is, the match
marks on these gears indexed to each other, mount
the injection pump unit on the engine front plate
and secure it by tightening the mounting bolts.
(2)
Install fuel feed pipes and lube oil pipe, and
reconnect all but
No.1
fuel injection pipe.
(3)
Crank the engine slowly until the plunger in
No. 1 pumping element comes
to
the position
for "beginning
of
injection." Check to be
sure that the timing mark on crank pulley
is
matched to the pomter on the
timing gear case;
if
not, adjust the mounted
position
of
the pump in the follOwing manner:
(NOTE
]
Tilting the pump toward the engine advances
the timing, and vice
versa'.
Refer to the gradua-
tion marks provided
on
the edge
face
of
the
mounting flange: one division
is
equivalent
to
6 deg.
of
crank angle.
(4) Having made sure that
aU
timing marks are
matched
as
prescribed and that the beginning
of
injection
is
correctly time'd (in reference to No. 1
cylinder), reconnect the injection pipe
(No.1).
Prime the fuel circuit in the manner previously
described: make sure that no air remains trapped
in any part
of
the circuit.
A·Timing
mark
on
crankshaft
pulley
(TDG)
-
57-
- SERVICE 1
- 1. Major 5
- GENERAL 5
- 1-2 Right-hand side view 6
- Longitudinal sectional view 7
- Transverse sectional view 8
- "til 9
- '1:l 10
- '0 10
- ~ 13500 11
- DISASSEMBLY 12
- (1) and disconnect injection 13
- (3) by loosening union 13
- (1) and remove 13
- (1) and oil ring (2) 17
- (b) Remove 18
- (f) Remove thermostat (5) 18
- Ii nder head 19
- (0.0020) 20
- Valve guides 21
- 'Valve springs 23
- Removing ridge 24
- 1.0. Remarks 25
- Pistons and piston rings 26
- (4) Piston 27
- (7) Piston pin bosses 28
- "c" and 29
- "c" 29
- ~rankpin 30
- (1) Journals 32
- 5393To.00059) 34
- (0.0012 36
- (0.00787) 36
- Camshaft 36
- W' 37
- +0.10 (hole) 38
- ",:e" 39
- (0.0020 40
- REASSEMBLY 41
- 1-Compression rings 42
- Driving 43
- Precombustion-chamber side 44
- (1) and two woodruff keys 45
- (1) with 47
- 48
- (lb-ft) 49
- CYLINDER 50
- ASSEMBLY 50
- (1) into the tappets 51
- I----------=~ 53
- -~-==II 53
- J.00059 54
- (NOTES] 55
- COOLING SYSTEM 56
- ± 2°C (169.7 ± 3.6°F) 56
- (1) Remove pump cover (2) 57
- Reassembly 59
- (1) and install 59
- Fuel circuit 60
- Priming the fuel system 61
- (1) Bringing 62
- (1) Filter 63
- ®--_" 64
- Leak-off pipe packing 65
- 01 this 66
- (3) Seating tightness 67
- 6. Fuel feed pump 68
- Priming 70
- 600 injection-pump rpm 71
- 1.S kg/cm 71
- Tabulated data 73
- (IT) mounted on control 74
- 1. General 75
- Starter 76
- ± 0.3 V 78
- _..JI~'--_Fuse 79
- Dz permits the 80
- (1), and remove starter 81
- 7. Inspection and adjustment 85
- Ammeter 87
- -"' 88
- Alternator 89
- (1) Starting the engine 91
- (f) Fuel injection 91
- (1) Test condition 91
- 760 - 11.4 92
- -fJiGQ' 93
- ( 1.73) 95
- ± 2.21) 95
- I Warpage on 96
- @' 99
- 'U 100
- ""' 101
- "" 102
- (0.130~0.154) 103
- I Replace 104
- '" 105
- SEALANT APPLICATION DATA 106
- Important bolts and nuts 107
- General bolts and 108
- "t 109
- ~"~i 110
- 2·lnstaller 111
- 3-Cran kease 111
- 1-Rod 3-Camshaft bushing 112
- 2-Adaptor 112
- TROUBLESHOOTING 114
- .::;;"' 115
- - - - 0 116
- 0 - - 116
- - 0 - - 116
- -" 117
- '85 120
- Printed in Japan 120
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