Subaru Legacy (2005 year). Manual - part 71

ME(H4SO 2.0)-67

MECHANICAL

Cylinder Block

28) Remove the service hole cover and service
hole plugs using a hexagon wrench (14 mm).

29) Rotate the crankshaft to bring #1 and #2 pis-
tons to bottom dead center position, then remove
the piston snap ring through service hole of #1 and
#2 cylinders.

30) Draw out the piston pin from #1 and #2 pistons
using ST.
ST

499097700

PISTON PIN REMOVER

NOTE:
Be careful not to confuse the original combination
of piston, piston pin and cylinder.

31) Similarly remove the piston pins from #3 and #4
pistons.
32) Remove the bolts which connect cylinder block
on the side of #2 and #4 cylinders.
33) Loosen the bolts which connect cylinder block
on the side of #1 and #3 cylinders for two or three
turns.
34) Set up the cylinder block so that #1 and #3 cyl-
inders are on the upper side, then remove the cyl-
inder block connecting bolts.

ME-00140

ME-00141

ME-00142

ME(H4SO 2.0)-68

MECHANICAL

Cylinder Block

35) Separate the cylinder block (RH) and (LH).

NOTE:
When separating the cylinder block, do not allow the connecting rod to fall or damage the cylinder block.

36) Remove the rear oil seal.
37) Remove the crankshaft together with connect-
ing rod.
38) Remove the crankshaft bearings from cylinder
block using a hammer handle.

NOTE:
Be careful not to confuse the crankshaft bearing
combination. Press the bearing at the end opposite
to locking lip.
39) Draw out each piston from cylinder block using
a wooden bar or hammer handle.

NOTE:
Be careful not to confuse the original combination
of piston and cylinder.

(1)

Cylinder block

(3)

Crankshaft

(5)

Piston

(2)

Rear oil seal

(4)

Crankshaft bearing

ME-02408

(2)

(3)

(4)

(5)

(1)

ME(H4SO 2.0)-69

MECHANICAL

Cylinder Block

B: INSTALLATION

NOTE:
Remove oil on the mating surface of bearing and cylinder block before installation. Apply a coat of engine oil
to crankshaft pins.
1) Position the crankshaft on the #2 and #4 cylinder
block.
2) Apply liquid gasket to the mating surface of #1
and #3 cylinder block, and position it on #2 and #4
cylinder block.

Liquid gasket:

THREE BOND 1215 (Part No. 004403007) or
equivalent

NOTE:
Do not allow liquid gasket to flow into O-ring
grooves, oil passages, bearing grooves, etc.

3) Tighten the 10 mm cylinder block connecting
bolts on LH side (A — D) in alphabetical sequence.

Tightening torque:

10 N

⋅

m (1.0 kgf-m, 7.4 ft-lb)

(1)

Crankshaft bearing

(3)

Cylinder block

(5)

O-ring

(2)

Crankshaft

(4)

Rear oil seal

ME-02597

(4)

(1)

(3)

(2)

(5)

ME-00145

ME-00398

(A)

(B)

(C)

(D)

ME(H4SO 2.0)-70

MECHANICAL

Cylinder Block

4) Tighten the 10 mm cylinder block connecting
bolts on RH side (E — J) in alphabetical sequence.

Tightening torque:

10 N

⋅

m (1.0 kgf-m, 7.4 ft-lb)

5) Further tighten the LH side bolts (A — D) in al-
phabetical sequence.

Tightening torque:

18 N

⋅

m (1.8 kgf-m, 13.3 ft-lb)

6) Further tighten the RH side bolts (E — J) in al-
phabetical sequence.

Tightening torque:

18 N

⋅

m (1.8 kgf-m, 13.3 ft-lb)

7) Further tighten the LH side bolts to 90

° for (A)

and (C), and to 40 N

⋅m (4.1 kgf-m, 29.5 ft-lb) for (B)

and (D), in alphabetical sequence.

8) Further tighten the RH side bolts (E — J) to 90

in alphabetical sequence.

9) Tighten the 8 mm and 6 mm cylinder block con-
necting bolts on LH side (A — H) in alphabetical se-
quence.

Tightening torque:

(A) — (G): 25 N

⋅

m (2.5 kgf-m, 18.4 ft-lb)

(H): 6.4 N

⋅

m (0.65 kgf-m, 4.7 ft-lb)

ME-00399

(E)

(G)

(F)

(I)

(J)

(H)

ME-00398

(A)

(B)

(C)

(D)

ME-00399

(E)

(G)

(F)

(I)

(J)

(H)

ME-00398

(A)

(B)

(C)

(D)

ME-00399

(E)

(G)

(F)

(I)

(J)

(H)

ME-00147

(B)

(C)

(D)

(E)

(F)

(G)

(H)

(A)

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