Subaru Legacy IV (2008 year). Service manual - part 274

ME(H4DOTC)-76

Cylinder Block

MECHANICAL

27) Remove the service hole plugs using a hexa-
gon wrench [14 mm].

28) Remove the service hole cover.
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 draw out the piston pins from #3 and
#4 pistons.
32) Remove the cylinder block connecting bolt on
the RH side.
33) Loosen the cylinder block connecting bolt on
the LH side by 2 to 3 turns.
34) Set the part so that the cylinder block LH is on
the upper side, and remove the cylinder block con-
necting bolt.

ME-00140

ME-00141

ME-03325

ST

ME(H4DOTC)-77

Cylinder Block

MECHANICAL

35) Separate the cylinder block LH and RH.

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

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

(1)

Cylinder block

(4)

Crankshaft bearing

(6)

Seal washer

(2)

Rear oil seal

(5)

Piston

(7)

Washer

(3)

Crankshaft

  

ME-02890

(2)

(3)

(4)

(4)

(5)

(6)

(5)

(1)

(1)

(7)

ME(H4DOTC)-78

Cylinder Block

MECHANICAL

B: INSTALLATION

1) Remove oil on the mating surface of cylinder
block before installation. Apply a coat of engine oil
to the bearing and crankshaft journal.
2) Position the crankshaft and O-ring on the cylin-
der block RH.

NOTE:
Use new O-rings.
3) Apply liquid gasket to the mating surfaces of cyl-
inder block RH, and position the cylinder block LH.

NOTE:
• Install within 5 minutes after applying liquid gas-
ket.
• Do not allow liquid gasket to jut into O-ring
grooves, oil passages, bearing grooves, etc.

Liquid gasket:

THREE BOND 1217G (Part No. K0877Y0100) 
or equivalent

(1)

Crankshaft bearing

(4)

Rear oil seal

(6)

Seal washer

(2)

Crankshaft

(5)

O-ring

(7)

Washer

(3)

Cylinder block

 

 

ME-03186

(4)

(1)

(3)

(6)

(6)

(7)

(7)

(3)

(2)

(5)

(6)

(7)

ME-00145

ME(H4DOTC)-79

Cylinder Block

MECHANICAL

4) Apply a coat of engine oil to the washer and bolt
thread.

NOTE:
Use new seal washer.
5) Tighten the 10 mm cylinder block connecting
bolts on the LH side (A — D) in alphabetical order.

Tightening torque:

10 N·m (1.0 kgf-m, 7.2 ft-lb)

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

Tightening torque:

10 N·m (1.0 kgf-m, 7.2 ft-lb)

7) Tighten the LH side cylinder block connecting
bolts (A — D) further in alphabetical order.

Tightening torque:

18 N·m (1.8 kgf-m, 13.3 ft-lb)

8) Tighten the RH side cylinder block connecting
bolts (E — J) further in alphabetical order.

Tightening torque:

18 N·m (1.8 kgf-m, 13.3 ft-lb)

9) Tighten the LH side cylinder block connecting
bolts (A — D) further in alphabetical order.
• (A), (C): Angle tightening

Tightening angle:

90°

• (B), (D): Torque tightening

Tightening torque:

40 N·m (4.1 kgf-m, 29.5 ft-lb)

10) Tighten the RH side cylinder block connecting
bolts (E — J) further in alphabetical order.

Tightening angle:

90°

ME-00779

(A)

(B)

(D)

(C)

ME-00780

(J)

(H)

(G)

(E)

(F)

(I)

ME-00779

(A)

(B)

(D)

(C)

ME-00780

(J)

(H)

(G)

(E)

(F)

(I)

ME-00779

(A)

(B)

(D)

(C)

ME-00780

(J)

(H)

(G)

(E)

(F)

(I)