Subaru Legacy III (2000-2003 year). Manual - part 428

ME(H4DOSTC)-76

MECHANICAL

CYLINDER BLOCK

11) Position the second ring gap at 180

°

 on the re-

verse side for the top ring gap.

12) Position the expander rail gap at (C) in the fig-
ure.

NOTE:
Align the lower rail spin stopper (F) with piston side
surface hole (E).

13) Position the upper rail gap at (G) in the figure.

NOTE:
• Ensure ring gaps do not face the same direction.
• Ensure ring gaps are not within the piston skirt
area.
14) Installing the circlip:
Install the circlips in piston holes located opposite
of the service holes in cylinder block, when posi-
tioning all pistons in the corresponding cylinders.

NOTE:
Use new circlips.

ME-00635

180˚

(A)

(B)

ME-00636

(C)

ME-00637

(D)

25˚

ME-00152

( E )

( F )

ME-00638

(G)

30

˚

ME-00154

Front side

#1

#3

#4

#2

ME(H4DOSTC)-77

MECHANICAL

CYLINDER BLOCK

15) Installing the piston:

(1) Turn the cylinder block so that #1 and #2 cyl-
inders face upward.
(2) Using the ST1, turn the crankshaft so that
#1 and #2 connecting rods are set at bottom
dead center.

ST1

499987500

CRANKSHAFT SOCKET

(3) Apply a coat of engine oil to the pistons and
cylinders and insert pistons in their cylinders us-
ing ST2.

ST2

398744300

PISTON GUIDE

NOTE:
Piston front mark faces towards the front of the en-
gine.

(1) Piston

(4) Gasket

Tightening torque

：

：

：

：

N·m (kgf-m, ft-lb)

(2) Piston pin

(5) Service hole plug

T: 70 (7.1, 51.4)

(3) Circlip

( 1 )

( 2 )

( 3 )

( 4 )

( 5 )

( 2 )

( 3 )

( 4 )

( 5 )

T

( 1 )

ME-00155

ME-00157

ST1

ST2

(A) Front mark

ME-00639

(A)

ME(H4DOSTC)-78

MECHANICAL

CYLINDER BLOCK

16) Installing piston pin:

(1) Apply a coat of engine oil to ST3, and then
insert the ST3 into service hole to align piston
pin hole with connecting rod small end. 

ST3

499017100

PISTON PIN GUIDE

(2) Apply a coat of engine oil to the piston pin
and insert piston pin into piston and connecting
rod through service hole.
(3) Using the ST, install the circlip.

ST

499897200

PISTON CIRCLIP PLIERS

NOTE:
Use new circlips.

(4) Apply fluid packing around the service hole
plug.

Fluid packing:

Part No. 004403007

THREE BOND 1215 or equivalent

(5) Install the service hole plug and gasket.

NOTE:
Use a new gasket.

ME-00158

ST1

ST3

ME-00159

ME-00160

ME-00140

ME(H4DOSTC)-79

MECHANICAL

CYLINDER BLOCK

(6) Turn the cylinder block so that #3 and #4 cyl-
inders face upward. Using the same procedures
as used for #1 and #2 cylinders, install the pis-
tons and piston pins.

17) Install the water pipe.
18) Install the baffle plate.

Tightening torque:

6.4 N·m (0.65 kgf-m, 4.7 ft-lb)

19) Install the oil strainer and O-ring.

Tightening torque:

10 N·m (1.0 kgf-m, 7 ft-lb)

20) Install the oil strainer stay.

21) Apply fluid packing to the matching surfaces,
and then install the oil pan.

Fluid packing:

Part No. 004403007

THREE BOND 1215 or equivalent

(1) Piston

(5) Service hole plug

Tightening torque

：

：

：

：

N·m (kgf-m, ft-lb)

(2) Piston pin

(6) Service hole cover

T1: 6.4 (0.65, 4.7)

(3) Circlip

(7) O-ring

T2: 70 (7.1, 51.4)

(4) Gasket

( 1 )

( 1 )

ME-00161

( 3 )

( 2 )

( 5 )

( 4 )

( 6 )

( 7 )

( 2 )

( 3 )

T2

T1

ME-00162