Lexus LS400 (2000 year). Manual — part 78

A02114

A02115

Front

90

°

90

°

A02101

A

B

A

B

Seal Width
2 – 3 mm

–

ENGINE MECHANICAL

CYLINDER BLOCK

EM–115

1297

12.

INSTALL CONNECTING ROD CAP BOLTS

HINT:

The connecting rod cap bolts are tightened in 2 progres-
sive steps (steps (b) and (d)).

If any one of the connecting rod cap bolts is broken or de-
formed, replace it.

(a)

Apply a light coat of engine oil on the threads and under
the heads of the connecting rod cap bolts.

(b)

Install and alternately tighten the 2 connecting rod cap
bolts in several passes.
Torque: 25 N·m (250 kgf·cm, 18 ft·lbf)

If any one of the connecting rod cap bolts does not meet the
torque specification, replace the connecting rod cap bolts.

(c)

Mark the front of the connecting cap bolt with paint.

(d)

Retighten the cap bolts 90

°

as shown.

(e)

Check that the painted mark is now at a 90

°

angle to the

front.

(f)

Check that the crankshaft turns smoothly.

13.

CHECK CONNECTING ROD THRUST CLEARANCE
(See page

EM–90

)

14.

INSTALL REAR OIL SEAL RETAINER

(a)

Remove any old packing (FIPG) material and be careful
not to drop any oil on the contact surfaces of the oil seal
retainer and cylinder block.

Using a razor blade and gasket scraper, remove all
the oil packing (FIPG) material from the gasket sur-
faces and sealing grooves.

Thoroughly clean all components to remove all the
loose material.

Using a non–residue solvent, clean both sealing
surfaces.

(b)

Apply seal packing to the oil seal retainer as shown in the
illustration.
Seal packing:
Part No. 08826–00080 or equivalent

Install a nozzle that has been cut to a 2 – 3 mm (0.08
– 0.12 in.) opening.

Parts must be assembled within 5 minutes of ap-
plication. Otherwise the material must be removed
and reapplied.

A02102

New
O–Ring

P12477

Seal Packing

P20642

Front

Port

EM–116

–

ENGINE MECHANICAL

CYLINDER BLOCK

1298

Immediately remove nozzle from the tube and rein-
stall cap.

(c)

Install a new O–ring to the cylinder block.

(d)

Install the oil seal retainer with the 7 bolts.
Torque: 8.0 N·m (80 kgf·cm, 71 in.·lbf)

15.

INSTALL ENGINE COOLANT DRAIN UNIONS

(a)

Apply seal packing to 2 or 3 threads.
Seal packing:
Part No. 08826–00100 or equivalent

(b)

Install the RH and LH drain unions.
Torque: 49 N·m (500 kgf·cm, 36 ft·lbf)

HINT:
After applying the specified torque, rotate the drain union clock-
wise until its drain port is facing forward.
16.

INSTALL WATER SEAL PLATE

(a)

Remove any old packing (FIPG) material and be careful
not to drop any oil on the contact surfaces of the seal plate
and cylinder block.

Using a razor blade and gasket scraper, remove all
the old packing (FIPG) material from the gasket sur-
faces and sealing groove.

Thoroughly clean all components to remove all the
loose material.

Using a non–residue solvent, clean both sealing
surfaces.

EM6687

A

B

Seal Width
2 – 3 mm

A

B

A01878

Ground Cable

Bracket

Wire Protector

Cover

LH Side

Bracket

P20615

RH Side

–

ENGINE MECHANICAL

CYLINDER BLOCK

EM–117

1299

(b)

Apply seal packing to the seal plate as shown in the il-
lustration.
Seal packing:
Part No. 08826–00080 or equivalent

Install a nozzle that has been cut to a 2 – 3 mm (0.08
– 0.12 in.) opening.

Parts must be assembled within 5 minutes of ap-
plication. Otherwise the material must be removed
and reapplied.

Immediately remove nozzle from the tube and rein-
stall cap.

(c)

Install the seal plate with the 2 nuts. Alternately tighten the
nuts in several passes.
Torque: 14 N·m (145 kgf·cm, 10 ft·lbf)

17.

INSTALL OIL PUMP (See page

LU–16

)

18.

INSTALL OIL STRAINER (See page

LU–16

)

19.

INSTALL NO.1 OIL PAN (See page

LU–16

)

20.

INSTALL OIL PAN BAFFLE PLATE
(See page

LU–16

)

21.

INSTALL NO.2 OIL PAN (See page

LU–16

)

22.

INSTALL WATER PUMP (See page

CO–10

)

23.

INSTALL ENGINE WIRE

(a)

Install the engine wire to the LH side of the cylinder block
with the 4 bolts.

(b)

Install the engine wire cover with the 2 bolts.

(c)

Install the engine wire to the RH side of the cylinder block
with the 2 bolts.

(d)

Connect the crankshaft position connector.

24.

INSTALL KNOCK SENSORS (See page

SF–85

)

25.

INSTALL STARTER (See page

ST–17

)

P20655

Push

New
O–Ring

A02224

A02225

EM–118

–

ENGINE MECHANICAL

CYLINDER BLOCK

1300

26.

INSTALL WATER BYPASS PIPE

(a)

Install a new O–ring to the water bypass pipe.

(b)

Apply soapy water to the O–ring.

(c)

Push the water bypass pipe end into the pipe hole of the
water pump.

(d)

Install the water bypass pipe with the bolt.
Torque: 18 N·m (185 kgf·cm, 13 ft·lbf)

(e)

Install the engine wire clamp to the bracket on the water
bypass pipe.

27.

INSTALL RH ENGINE MOUNTING BRACKET

Install the mounting bracket with the 4 bolts.

Torque: 36 N·m (370 kgf·cm, 27 ft·lbf)

HINT:
The RH mounting bracket is marked with ”R”.

28.

INSTALL LH ENGINE MOUNTING BRACKET

Install the mounting bracket with the 4 bolts.
HINT:
The LH mounting bracket is marked with ”L”.

Torque: 36 N·m (370 kgf·cm, 27 ft·lbf)

29.

INSTALL CYLINDER HEADS (See page

EM–58

)

30.

INSTALL TIMING BELT AND PULLEYS
(See page

EM–22

)

31.

DISCONNECT ENGINE FROM ENGINE STAND