Mitsubishi 4DQ5 Service Manual Page 24
- Page / 120
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
Rated. / 5. Based on customer reviews
Cylinder sleeves
(1) Using a cylinder gauge, take ID measurements in
two directions (parallel and transverse
to
crank-
shaft axis)
on
each cylinder sleeve, at three places
indicated
below.
If
wear reaches the repair limit, reb ore the sleeve
to the
next
specifted oversize.
Specifications
Unit: mm (in.)
Item Standard
Repair
Service
limit limit
84
+0.035
0
+0.20
0.70
Cylinder
sleeve ID
(3.307 +g.00138)
(+0.008)
(0.0276)
Out
of
0.1
roundness
(0.004),
max
0.015
Taper
(0.0006),
max
(2) There are three oversizes for cylinder sleeves,
name-
ly, +0.25 mm (0.0098 in.), +0.50 mm (0.0197 in.)
and
+0.75 mm (0.0295 in.). The tolerance to which
the sleeves should be refinished by boring
is
0 -
0.035 mm (0.0014 in.). When the sleeves are
re-
bored, oversize pistons and piston rings should be
used.
(3) An oversize to which any sleeve worn taper and/or
out
of
round
is
to be rebored should be determined
by relying
on
the most worn part
of
the sleeve. A
cylinder sleeve whose abnormal wear
is
0.4 mm
(0.0157 in.) should be rebored to 1 mm (0.0394
in.) oversize, for example.
(NOTE]
a)
All cylinders should be rebored
to
one and
the same oversize.
b) When the sleeves are not worn beyond the
repair limit,
but
the piston rings have to be
renewed, correct stepped wear on the top
part
of
the sleeve by using a ridge reamer
and, if necessary, refinish the sleeves by
honing.
I
Taking
ID
measurements
on
cylinder sleeves
Crlnkcase
gaske,ed
surfKe
oJ,
0111
(0.43i
1
.:)
~~'
r
2
3
'.
Positions for checking sleeve bore diameter
Removing ridge
with
ridge reamer
-20
-
- 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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