Subaru Legacy IV (2008 year). Manual — part 256
ME(H4DOTC)-4
General Description
MECHANICAL
Piston pin
Standard clearance between piston
and piston pin
mm (in) Standard
0.004 — 0.008 (0.0002 — 0.0003)
Degree of fit
Piston pin must be fitted into position with
thumb at 20°C (68°F).
Piston ring
Ring closed gap
mm (in)
Top ring
Standard
0.20 — 0.25 (0.0079 — 0.0098)
Second ring
Standard
0.37 — 0.52 (0.015 — 0.0203)
Oil ring
Standard
0.20 — 0.50 (0.0079 — 0.0197)
Ring groove gap
mm (in)
Top ring
Standard
0.040 — 0.080 (0.0016 — 0.0031)
Second ring
Standard
0.030 — 0.070 (0.0012 — 0.0028)
Connecting
rod
Bend or twist per 100 mm (3.94 in)
in length
mm (in) Service limit
0.1 (0.0039)
Thrust clearance
mm (in) Standard
0.070 — 0.330 (0.0028 — 0.0130)
Bearing of
large end
Oil clearance
mm (in) Standard
0.017 — 0.045 (0.0007 — 0.0018)
Bearing size
(Thickness at center)
mm (in)
Standard
1.490 — 1.502 (0.0587 — 0.0591)
0.03 (0.0012) US
1.504 — 1.512 (0.0592 — 0.0595)
0.05 (0.0020) US
1.514 — 1.522 (0.0596 — 0.0599)
0.25 (0.0098) US
1.614 — 1.622 (0.0635 — 0.0639)
Bushing of
small end
Clearance between piston pin and
bushing
mm (in) Standard
0 — 0.022 (0 — 0.0009)
Crankshaft
Bending limit
mm (in)
0.035 (0.0014)
Crank pin
Out-of-roundness
mm (in)
0.003 (0.0001)
Cylindricality
mm (in)
0.004 (0.0002)
Grinding limit (dia.)
mm (in)
To 51.750 (2.0374)
Crank journal
Out-of-roundness
mm (in)
0.005 (0.0002)
Cylindricality
mm (in)
0.006 (0.0002)
Grinding limit (dia.)
mm (in)
To 59.758 (2.3527)
Crank pin outer diameter
mm (in)
Standard
51.984 — 52.000 (2.0466 — 2.0472)
0.03 (0.0012) US
51.954 — 51.970 (2.0454 — 2.0461)
0.05 (0.0020) US
51.934 — 51.950 (2.0447 — 2.0453)
0.25 (0.0098) US
51.734 — 51.750 (2.0368 — 2.0374)
Crank journal outer
diameter
mm (in)
Standard
59.992 — 60.008 (2.3619 — 2.3625)
0.03 (0.0012) US
59.962 — 59.978 (2.3607 — 2.3613)
0.05 (0.0020) US
59.942 — 59.958 (2.3599 — 2.3605)
0.25 (0.0098) US
59.742 — 59.758 (2.3520 — 2.3527)
Thrust clearance
mm (in) Standard
0.030 — 0.115 (0.0012 — 0.0045)
Oil clearance
mm (in) Standard
0.010 — 0.030 (0.0004 — 0.0012)
Main bearing
Bearing size
(Thickness at center)
mm (in)
#1, #3
Standard
1.998 — 2.011 (0.0787 — 0.0792)
0.03 (0.0012) US
2.017 — 2.020 (0.0794 — 0.0795)
0.05 (0.0020) US
2.027 — 2.030 (0.0798 — 0.0799)
0.25 (0.0098) US
2.127 — 2.130 (0.0837 — 0.0839)
#2, #4,
#5
Standard
2.000 — 2.013 (0.0787 — 0.0793)
0.03 (0.0012) US
2.019 — 2.022 (0.0795 — 0.0796)
0.05 (0.0020) US
2.029 — 2.032 (0.0799 — 0.0800)
0.25 (0.0098) US
2.129 — 2.132 (0.0838 — 0.0839)
ME(H4DOTC)-5
General Description
MECHANICAL
B: COMPONENT
1. TIMING BELT
(1)
Timing belt cover No. 2 RH
(12)
Timing belt
Tightening torque:N·m (kgf-m, ft-lb)
(2)
Timing belt guide (MT model)
(13)
Belt idler No. 2
T1: 3.4 (0.3, 2.5)
(3)
Crank sprocket
(14)
Belt idler (B)
T2: 5 (0.5, 3.7)
(4)
Timing belt cover No. 2 LH
(15)
Timing belt cover LH
T3: 6.4 (0.7, 4.7)
(5)
Tensioner bracket
(16)
Front belt cover
T4: 9.75 (1.0, 7.2)
(6)
Automatic belt tension adjuster
ASSY
(17)
Timing belt cover RH
T5: 24.5 (2.5, 18.1)
(18)
Crank pulley (MT model)
T6: 25 (2.5, 18.4)
(7)
Belt idler (A)
(19)
Timing belt guide (MT model)
T7: 39 (4.0, 28.8)
(8)
Exhaust cam sprocket RH
(20)
O-ring
T8: <Ref. to ME(H4DOTC)-56,
INSTALLATION, Cam Sprocket.>
(9)
Intake cam sprocket RH
(21)
Actuator cover
(10)
Intake cam sprocket LH
(22)
Crank pulley (AT model)
T9: <Ref. to ME(H4DOTC)-44,
INSTALLATION, Crank Pulley.>
(11)
Exhaust cam sprocket LH
(23)
Belt idler (C)
ME-03933
T8
T2
(7)
(6)
(10)
(5)
(23)
(2)
(3)
T4
(4)
(1)
(19)
(19)
T3
T7
T5
T6
T7
T8
T7
T8
T2
T3
(11)
(15)
(17)
(19)
(9)
(8)
(13)
(14)
(12)
(16)
T2
T2
T3
T2
T2
T8
(20)
(20)
T2
T1
T1
T2
(21)
(21)
T9
(18)
(22)
T2
ME(H4DOTC)-6
General Description
MECHANICAL
2. CYLINDER HEAD AND CAMSHAFT
ME-03696
T7
(1)
T3
T3
T5
T5
T5
T5
T1
(3)
(7)
(6)
(9)
(8)
(10)
(12)
(28)
(31)
(13)
(25)
(21)
(20)
(6)
(16)
(17)
(18)
(9)
(8)
(19)
(15)
(14)
(29)
(11)
(5)
(4)
(22)
T7
T7
(14)
(29)
(12)
(27)
(27)
(26)
(27)
(31)
(30)
T2
T2
T2
T6
T1
(11)
(2)
T6
T2
T2
T6
(30)
T6
(24)
(23)
T4
(32)
T2
ME(H4DOTC)-7
General Description
MECHANICAL
(1)
Rocker cover RH
(18)
Front camshaft cap LH
(32)
Gasket
(2)
Rocker cover gasket RH
(19)
Intake camshaft cap LH
(3)
Front camshaft cap RH
(20)
Exhaust camshaft cap LH
Tightening torque:N·m (kgf-m, ft-lb)
(4)
Intake camshaft cap RH
(21)
Rocker cover gasket LH
T1: <Ref. to ME(H4DOTC)-65,
INSTALLATION, Cylinder Head.>
(5)
Intake camshaft RH
(22)
Rocker cover LH
(6)
Oil flow control solenoid valve
(23)
Oil filler cap
T2: 8 (0.8, 5.9)
(7)
Exhaust camshaft cap RH
(24)
Oil filler duct
T3: <Ref. to ME(H4DOTC)-59,
INSTALLATION, Camshaft.>
(8)
Gasket
(25)
O-ring
(9)
Oil return cover
(26)
Oil pipe LH
T4: 6.4 (0.7, 4.7)
(10)
Exhaust camshaft RH
(27)
Gasket
T5: <Ref. to ME(H4DOTC)-59,
INSTALLATION, Camshaft.>
(11)
Cylinder head bolt
(28)
Oil pipe RH
(12)
Oil seal
(29)
Stud bolt
T6: 29 (3.0, 21.4)
(13)
Cylinder head RH
(30)
Union screw with filter
(with protrusion)
T7: <Ref. to ME(H4DOTC)-59,
INSTALLATION, Camshaft.>
(14)
Cylinder head gasket
(15)
Cylinder head LH
(31)
Union screw without filter
(without protrusion)
(16)
Intake camshaft LH
(17)
Exhaust camshaft LH
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