Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLEXUS2006RX 400H AWD V6-3.3L (3MZ-FE) HYBRIDREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINESYSTEM SPECIFICATIONSCOMPONENT TIGHTENING SPECIFICATIONS AND SEQUENCES
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) Hybrid
Component Tightening Specifications and Sequences
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) HybridSECTION Component Tightening Specifications and Sequences
Cylinder Head Bolts
First Pass 54 Nm (550 kgf-cm, 40 ft. lbs.)
Final Pass 90°
Cylinder Head Bolt Outside Diameter
Standard 8.95 to 9.05 mm (0.3524 to 0.3563 inch)
Minimum 8.75 mm (0.3445 inch)
Camshaft Bearing Cap Bolts 16 Nm (163 kgf-cm, 12 ft. lbs.)
Intake Manifold Bolts & Nuts
First Pass 15 Nm (153 kgf-cm, 11 ft. lbs.)
Second Pass
Water outlet bolts & nuts 15 Nm (153 kgf-cm, 11 ft. lbs.)
Final Pass
Ground cable & nut 8.4 Nm (86 kgf-cm, 74 inch lbs.)
Exhaust Manifold Bolts & Nuts
First Pass 49 Nm (500 kgf-cm, 36 ft. lbs.)
Final Pass
Nuts 1 & 2 49 Nm (500 kgf-cm, 36 ft. lbs.)
Connecting Rod Bolts
First Pass 25 Nm (255 kgf-cm, 18 ft. lbs.)
Final Pass 90°
16 Main Bearing Cap Bolts
First Pass 22 Nm (224 kgf-cm, 16 ft. lbs.)
Final Pass 90°
8 Main Bearing Cap Bolts w/New Seal Washers 27 Nm (275 kgf-cm, 20 ft. lbs.)
Crankshaft Pulley Bolt 220 Nm (2,243 kgf-cm, 162 ft. lbs.)
Flex Plate Bolts 83 Nm (846 kgf-cm, 61 ft. lbs.)
Water Pump Bolts & Nuts 8.0 Nm (82 kgf-cm, 71 inch lbs.)
Oil Pump Bolts
Bolt A 8.0 Nm (82 kgf-cm, 71 inch lbs.)
Bolt B 20 Nm (199 kgf-cm, 14 ft. lbs.)
Bolt C 43 Nm (439 kgf-cm, 32 ft. lbs.)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.