Subaru Legacy (2005 year). Manual — part 75

ME(H4SO 2.0)-83

MECHANICAL

Cylinder Block

7) Replacement procedure is as follows.

(1) Remove the bushing from connecting rod
with ST and press.
(2) Press the bushing with ST after applying oil
on the periphery of bushing.

ST

499037100

CONNECTING ROD BUSH-
ING REMOVER AND IN-
STALLER

(3) Make two 3 mm (0.12 in) holes in bushing.
Ream the inside of bushing.
(4) After completion of reaming, clean the bush-
ing to remove chips.

6. CRANKSHAFT AND CRANKSHAFT
BEARING

1) Clean the crankshaft completely, and check it for
cracks using liquid penetrant tester. Replace if
faulty.
2) Measure the bend of crankshaft. If it exceeds the
limit, repair or replace it.

NOTE:
If a suitable V-block is not available, install #1 and
#5 crankshaft bearing on cylinder block, position
the crankshaft on these bearings, and then mea-
sure the crankshaft bend using a dial gauge.

Crankshaft bend limit:

0.035 mm (0.0014 in)

3) Inspect the crank journal and crank pin for wear.
If they are not within the specifications, replace the
bearing with a suitable (undersize) one, and re-
place or recondition crankshaft as necessary.
When grinding the crank journal or crank pin, finish
them to the specified dimensions according to the
undersize bearing to be used.

Crank pin:

2.0 L model
Out-of-roundness

0.005 mm (0.0002 in)

Cylindricality

0.006 mm (0.0002 in)

Grinding limit

To 51.750 mm (2.0374 in) dia.

2.5 L model
Out-of-roundness

0.003 mm (0.0001 in)

Cylindricality

0.004 mm (0.0002 in)

Grinding limit

To 51.750 mm (2.0374 in) dia.

Crank journal:

Out-of-roundness

0.005 mm (0.0002 in)

Cylindricality

0.006 mm (0.0002 in)

Grinding limit

To 59.750 mm (2.3524 in) dia.

ME-00182

ST

ME-00183

ME-00184

ME(H4SO 2.0)-84

MECHANICAL

Cylinder Block

4) Measure the thrust clearance of crankshaft at
center bearing. If thrust clearance exceeds the
standard, replace the bearing.

Crankshaft thrust clearance:

Standard

0.030 — 0.115 mm (0.0012 — 0.0045 in)

5) Inspect individual crankshaft bearings for signs
of flaking, seizure, melting, and wear.
6) Measure the oil clearance on each crankshaft
bearing using plastigauge. If the measurement is
not within the standard, replace the defective bear-
ing with an undersize one, and replace or recondi-
tion the crankshaft as necessary.

Crankshaft oil clearance:

Standard

0.010 — 0.030 mm (0.0004 — 0.0012 in)

Unit: mm (in)

Crank journal outer diameter

Crank pin outer diameter

#1, #3

#2, #4, #5

Standard

Journal O.D.

59.992 — 60.008

(2.3619 — 2.3625)

59.992 — 60.008

(2.3619 — 2.3625)

51.984 — 52.000

(2.0466 — 2.0472)

Bearing size
(Thickness at center)

1.998 — 2.011

(0.0787 — 0.0792)

2.000 — 2.013

(0.0787 — 0.0793)

1.492 — 1.501

(0.0587 — 0.0591)

0.03 (0.0012)
undersize

Journal O.D.

59.962 — 59.978

(2.3607 — 2.3613)

59.962 — 59.978

(2.3607 — 2.3613)

51.954 — 51.970

(2.0454 — 2.0461)

Bearing size
(Thickness at center)

2.017 — 2.020

(0.0794 — 0.0795)

2.019 — 2.022

(0.0795 — 0.0796)

1.510 — 1.513

(0.0594 — 0.0596)

0.05 (0.0020)
undersize

Journal O.D.

59.942 — 59.958

(2.3599 — 2.3605)

59.942 — 59.958

(2.3599 — 2.3605)

51.934 — 51.950

(2.0446 — 2.0453)

Bearing size
(Thickness at center)

2.027 — 2.030

(0.0798 — 0.0799)

2.029 — 2.032

(0.0799 — 0.0800)

1.520 — 1.523

(0.0598 — 0.0600)

0.25 (0.0098)
undersize

Journal O.D.

59.742 — 59.758

(2.3520 — 2.3527)

59.742 — 59.758

(2.3520 — 2.3527)

51.734 — 51.750

(2.0368 — 2.0374)

Bearing size
(Thickness at center)

2.127 — 2.130

(0.0837 — 0.0839)

2.129 — 2.132

(0.0838 — 0.0839)

1.620 — 1.623

(0.0638 — 0.0639)

ME-00322

ME(H4SO 2.0)-85

MECHANICAL

Intake and Exhaust Valve

22.Intake and Exhaust Valve

A: SPECIFICATION

Refer to “Cylinder Head” for removal and installa-
tion procedures of intake and exhaust valves. <Ref.
to ME(H4SO 2.0)-57, REMOVAL, Cylinder Head.>
<Ref. to ME(H4SO 2.0)-57, INSTALLATION, Cylin-
der Head.>

ME(H4SO 2.0)-86

MECHANICAL

Piston

23.Piston

A: SPECIFICATION

Refer to “Cylinder Block” for removal and installa-
tion procedures of pistons. <Ref. to ME(H4SO 2.0)-
64, REMOVAL, Cylinder Block.> <Ref. to
ME(H4SO 2.0)-69, INSTALLATION, Cylinder
Block.>