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 MANUALSLEXUS1999RX 300 AWD V6-3.0L (1MZ-FE)REPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYPISTON, ENGINE
1999 Lexus RX 300 AWD V6-3.0L (1MZ-FE)
Piston, Engine
1999 Lexus RX 300 AWD V6-3.0L (1MZ-FE)SECTION Piston, Engine
Diameter 87.406 - 87.416 mm
Oil Clearance (Piston to bore clearance)
Standard 0.084 - 0.106 mm
Maximum 0.13 mm
Ring Groove Clearance
Distance between new piston ring and wall of ring groove.
No.1 0.020 - 0.070 mm
No.2 0.020 - 0.060 mm
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.