Torque specifications for rebuilding the engine

Hi,

The Harrier isn't offered in the us. However, the Lexus RX is and it has the same engine (IMZ-FE). I hope this helps. What I have is broken down by engine components. The attached pics will correlate with the directions.

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1999 Lexus Truck RX 300 FWD V6-3.0L (1MZ-FE)
Tightening Specifications
Vehicle Engine, Cooling and Exhaust Engine Specifications Mechanical (including Torque) Cylinder Head Tightening Specifications
TIGHTENING SPECIFICATIONS
INSTALL 12 POINTED HEAD CYLINDER HEAD BOLTS

HINT:
- The cylinder head bolts are tightened in 2 progressive steps (steps (c) and (e)).
- If any bolt is broken or deformed, replace it.

A) Apply a light coat of engine oil on the threads and under the heads of the cylinder head bolts.
B) Install the plate washer to the cylinder head bolt.

Pic 1

c) Install and uniformly tighten the cylinder head bolts on each cylinder head, in several passes, in the sequence shown, then repeat for the other side, as shown.
Torque: 54 Nm (550 kgf-cm, 40 ft. Lbs.)
If any of the cylinder head bolts does not meet the torque specification, replace the cylinder head bolt.

Pic 2

d) Mark the front of the cylinder head bolt head with paint.
E) Retighten the cylinder head bolts by 90° in the numerical order shown.
F) Check that the painted mark is now at a 90° angle to the front.

Pic 3

INSTALL RECESSED HEAD CYLINDER HEAD BOLTS
a) Apply a light coat of engine oil on the threads and under the heads of the cylinder head bolts.
B) Using an 8 mm hexagon wrench, install the cylinder head bolt on each cylinder head, then repeat for the other side, as shown.
Torque: 18.5 Nm (185 kgf-cm, 13 ft. Lbs.)

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See pic 4 for oil pump specs.

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Pic 5 for connecting rods

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1999 Lexus Truck RX 300 FWD V6-3.0L (1MZ-FE)
Service Specifications
Vehicle Engine, Cooling and Exhaust Engine Specifications Mechanical (including Torque) Crankshaft Main Bearing Service Specifications
SERVICE SPECIFICATIONS
Main Bearing Cap Bolts

12 Pointed Head Bolts
Standard Diameter. 7.500 - 7.600 mm
Minimum Diameter. 7.20 mm

Tightening Torque

pic 6

Step 1. 22 Nm (16.22 ft. Lb.)
Step 2. Turn 90 degrees

Hexagon Head Bolts

pic 7

Torque. 27 Nm (20 ft. Lb.)

Main Bearing Oil Clearance

Standard
No.1 and No.4 Journals. 0.014-0.034 mm
No.2 and No.3 Journals. 0.026-0.046 mm

Maximum
No.1 and No.4 Journals. 0.05 mm
No.2 and No.3 Journals. 0.06 mm

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Exhaust manifold see pic 8

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Intake Manifold see pic 9

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Water pump see pic 10

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Let me know if this helps. If you have other questions or something specific, let me know.

Joe