1997 SUBARU LEGACY torque

D: ASSEMBLY
1. CRANKSHAFT AND PISTON
B2M0127A
Tightening torque: N⋅m (kg-m, ft-lb)
T: 44±2 (4.5±0.2, 32.5±1.4)
1) Install connecting rod bearings on connecting rods and
connecting rod caps.
CAUTION:
Apply oil to the surfaces of the connecting rod bear-
ings.
2) Install connecting rod on crankshaft.
CAUTION:
Position each connecting rod with the side marked
facing forward.
3) Install connecting rod cap with connecting rod nut.
Ensure the arrow on connecting rod cap faces the front
during installation.
CAUTION:
Each connecting rod has its own mating cap. Make
sure that they are assembled correctly by checking
their matching number.
When tightening the connecting rod nuts, apply oil
on the threads.
67
2-3bSERVICE PROCEDURE
5. Cylinder Block

B2M0087A
2. CYLINDER BLOCK
1) Install ST to cylinder block, then install crankshaft bear-
ings.
ST 499817000 ENGINE STAND
CAUTION:
Remove oil the mating surface of bearing and cylinder
block before installation. Also apply a coat of engine
oil to crankshaft pins.
2) Position crankshaft on the #2 and #4 cylinder block.
Tightening torque:
T1: 25±2 N⋅m (2.5±0.2 kg-m, 18.1±1.4 ft-lb)
T2: 47±3 N⋅m (4.8±0.3 kg-m, 34.7±2.2 ft-lb)
69
2-3bSERVICE PROCEDURE
5. Cylinder Block

G2M0185
3) Apply fluid packing to the mating surface of #1 and #3
cylinder block, and position it on #2 and #4 cylinder block.
Fluid packing:
THREE BOND 1215 or equivalent
CAUTION:
Do not allow fluid packing to jut into O-ring grooves,
oil passages, bearing grooves, etc.
B2M0088A
4) Temporarily tighten 10 mm cylinder block connecting
bolts in numerical order shown in Figure.
5) Tighten 10 mm cylinder block connecting bolts in
numerical order.
Tightening torque:
47±3 N⋅m (4.8±0.3 kg-m, 34.7±2.2 ft-lb)
B2M0089A
6) Tighten 8 mm and 6 mm cylinder block connecting bolts
in numerical order shown in Figure.
Tightening torque:


1—
7: 25±2 N⋅m
(2.5±0.2 kg-m, 18.1±1.4 ft-lb)


8: 6.4 N⋅m (0.65 kg-m, 4.7 ft-lb)
G2M0186
7) Install rear oil seal by using ST1 and ST2.
ST1 499597100 OIL SEAL GUIDE
ST2 499587200 OIL SEAL INSTALLER
70
2-3bSERVICE PROCEDURE
5. Cylinder Block

3. PISTON AND PISTON PIN (#1 AND #2)
B2M0128A
Tightening torque: N⋅m (kg-m, ft-lb)
T: 69±7 (7.0±0.7, 50.6±5.1)
G2M0188
1) Installing piston
(1) Turn cylinder block so that #1 and #2 cylinders face
upward.
(2) Using ST1, turn crankshaft so that #1 and #2 con-
necting rods are set at bottom dead center.
ST1 499987500 CRANKSHAFT SOCKET
(3) Apply a coat of engine oil to pistons and cylinders
and insert pistons in their cylinders by using ST2.
ST2 498747300 PISTON GUIDE
G2M0189
2) Installing piston pin
(1) Insert ST3 into service hole to align piston pin hole
with connecting rod small end.
CAUTION:
Apply a coat of engine oil to ST3 before insertion.
ST3 499017100 PISTON PIN GUIDE
71
2-3bSERVICE PROCEDURE
5. Cylinder Block

4. PISTON AND PISTON PIN (#3 AND #4)
B2M0129A
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 6.4 (0.65, 4.7)
T2: 69±7 (7.0±0.7, 50.6±5.1)
Turn cylinder block so that #3 and #4 cylinders face
upward. Using the same procedures as used for #1 and #2
cylinders, install pistons and piston pins.
73
2-3bSERVICE PROCEDURE
5. Cylinder Block

E: INSTALLATION
1. OIL PUMP AND ENGINE COOLANT PUMP
B2M0705B
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 5 (0.5, 3.6)
T2: 6.4 (0.65, 4.7)
T3: 10 (1.0, 7)
T4: 72±3 (7.3±0.3, 52.8±2.2)
T5: First 12±2 (1.2±0.2, 8.7±1.4)
Second 12±2 (1.2±0.2, 8.7±1.4)
74
2-3bSERVICE PROCEDURE
5. Cylinder Block

1. Lubrication System
B2M0314A

1Plug


2Washer


3Relief valve spring


4Relief valve


5Oil seal


6Oil pump case


7Inner rotor


8Outer rotor


9Oil pump cover


10Oil filter


11O-ring


12Oil pump ASSY


13Oil pressure switch


14Oil filler duct

15Baffle plate


16Oil strainer stay


17O-ring


18Oil strainer


19Oil level gauge guide


20Oil pan


21Oil level gauge


22Washer


23Drain plug
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 5 (0.5, 3.6)
T2: 5
+1
0(0.5+0.1
0, 3.6+0.7
0)
T3: 6.4 (0.65, 4.7)
T4: 9.8 (1.0, 7.0)
T5: 44.1±3.4 (4.5±0.35, 32.5±2.5)
4
2-4COMPONENT PARTS
1. Lubrication System

B2M0315B
2) Install inner and outer rotors in their original positions.
3) Install oil relief valve and relief spring.
4) Install oil pump cover.
Tightening torque:
T1: 5
+1
0N⋅m (0.5+0.1
0kg-m, 3.6+0.7
0ft-lb)
T2: 44.1±3.4 N⋅m (4.5±0.35 kg-m, 32.5±2.5 ft-lb)
B2M0319A
E: INSTALLATION
Installation is in the reverse order of removal.
Do the following:
1) Apply fluid packing to matching surfaces of oil pump.
Fluid packing:
THREE BOND 1215 or equivalent
2) Replace O-ring with a new one.
3) Be careful not to scratch oil seal when installing oil
pump on cylinder block.
CAUTION:
Apply fluid packing to oil pressure switch threads
before installation.
Fluid packing:
THREE BOND 1215 or equivalent
8
2-4SERVICE PROCEDURE
1. Oil Pump