Mitsubishi 4DQ3 - Rockers; Push Rods; Crankshaft

\0
tv
I
Group
"0
to
U
.c
..
u
"0
:§
G
~
Co
~
=
.~
0
e
.
~
~
Item
Valve clearance
Inside
diameter
'"
..
..
Diameter of
7j
0
rocker shaft
IX:
Fit on shaft
Push
Runout
rods
Exhaust
I
Warpage on
manifold gasketed surface
Runout (measured with
end journals held in
"V" blocks)
Diameter
of
journals
Out of roundness of
~
crankpins and journals
.c
'"
Taper of crank pins and
~
oS
journals
..
U
Diameter of erankpins
Fillet radius
Variance in angle among
crankpins
Nominal
dimension
0.25 (0.009S)
(cold setting)
IS (0.709)
IS (0.709)
IS (0.709)
65 (2.559)
5S (2.2S3)
3 (0.12)
Unit: mm (in.)
Assembly standard
Repair limit
Service limit
[Standard clearance]
[Clearance]
[ Clearance]
Remedy Remarks
0.25 (0.009S) clearance may
also be obtained
by warm set-
ting if intake and exhaust
valves are at the same
temperature.
+g.061 tg.00240)
-0.016 CO.00063)
-0.034 -0.00134
Replace bushings if
0.016
~0.095
1 0.10 J
repair limit is rcached.
1(0.00063
~0.OO374)J
(0.0039)
Replace shaft if the
limit
is exceeded.
0.4 (0.016), max
With both ball ends
supported.
0.2 (O.OOS)
0.05
0.02
(O.OOOS),
max
Straighten or replace
(0.0020)
crankshaft.
-0.015 CO.00059) -0.15 -0.9
-0.035 -0.0013S
(-0.0059) (-0.035)
0.03
0.01 (0.0004),
max
(0.0012)
-0.035 CO.OOl3S)
-0.20
-0.055 -0.00217 (-O.OOS)
±
0.2 (O.OOS)
±20'
