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.
2021 Lexus RC F BaseFACTORY OEM SERVICE PROCEDURE
Torque Specifications [09/2014 - 10/2015]
| Part Tightened | N*m | kgf*cm | ft.*lbf | in.*lbf | |||
|---|---|---|---|---|---|---|---|
| Camshaft timing oil control valve assembly RH x Cylinder head cover sub-assembly | 10 N*m ( | 102 kgf*cm, | 7 ft.*lbf) | ||||
| Camshaft timing oil control valve assembly LH x Cylinder head cover sub-assembly LH | 10 N*m ( | 102 kgf*cm, | 7 ft.*lbf) | ||||
| Camshaft timing control motor with EDU assembly RH x Timing chain or belt cover sub-assembly | 21 N*m ( | 214 kgf*cm, | 15 ft.*lbf) | ||||
| Engine wire | Bolt (A) | 10 N*m ( | 102 kgf*cm, | 7 ft.*lbf) | |||
| Bolt (B) | 12 N*m ( | 122 kgf*cm, | 9 ft.*lbf) | ||||
| Nut | 10 N*m ( | 102 kgf*cm, | 7 ft.*lbf) | ||||
| Camshaft timing control motor with EDU assembly LH x Timing chain or belt cover sub-assembly | 21 N*m ( | 214 kgf*cm, | 15 ft.*lbf) | ||||
| Intake air surge tank assembly x Stud bolt | 5.0 N*m ( | 51 kgf*cm, | 44 in.*lbf) | ||||
| Throttle body with motor assembly x Intake air surge tank assembly | 10 N*m ( | 102 kgf*cm, | 7 ft.*lbf) | ||||
| Air cleaner cap with air cleaner hose x Throttle body with motor assembly (Hose clamp) | 4.0 N*m ( | 41 kgf*cm, | 35 in.*lbf) | ||||
| No. 2 ECM bracket x ECM | 3.0 N*m ( | 31 kgf*cm, | 27 in.*lbf) | ||||
| No. 1 ECM bracket x ECM | 3.0 N*m ( | 31 kgf*cm, | 27 in.*lbf) | ||||
| ECM x Engine room ECU box | 5.5 N*m ( | 56 kgf*cm, | 49 in.*lbf) | ||||
| Engine room ECU cover x Engine room ECU box | 5.5 N*m ( | 56 kgf*cm, | 49 in.*lbf) | ||||
| Accelerator pedal assembly x Vehicle body | 5.4 N*m ( | 55 kgf*cm, | 48 in.*lbf) | ||||
| Accelerator pedal sensor assembly x Vehicle body | 5.4 N*m ( | 55 kgf*cm, | 48 in.*lbf) | ||||
| VVT sensor x Cylinder head cover sub-assembly LH | 10 N*m ( | 102 kgf*cm, | 7 ft.*lbf) | ||||
| VVT sensor x Cylinder head cover sub-assembly | with 10 mm union nut wrench | 9.0 N*m ( | 92 kgf*cm, | 80 in.*lbf) | |||
| without 10 mm union nut wrench | 10 N*m ( | 102 kgf*cm, | 7 ft.*lbf) | ||||
| Camshaft position sensor x Cylinder head cover sub-assembly | 10 N*m ( | 102 kgf*cm, | 7 ft.*lbf) | ||||
| Crankshaft position sensor x Cylinder block sub-assembly | 10 N*m ( | 102 kgf*cm, | 7 ft.*lbf) | ||||
| Spark plug x Cylinder head sub-assembly | 21 N*m ( | 214 kgf*cm, | 15 ft.*lbf) | ||||
| Spark plug x Cylinder head LH | 21 N*m ( | 214 kgf*cm, | 15 ft.*lbf) | ||||
| Ignition coil assembly x Cylinder head cover sub-assembly LH | 10 N*m ( | 102 kgf*cm, | 7 ft.*lbf) | ||||
| Ignition coil assembly x Cylinder head cover sub-assembly | 10 N*m ( | 102 kgf*cm, | 7 ft.*lbf) | ||||
| Wire harness clamp bracket x Vehicle body (LH side) | 8.5 N*m ( | 87 kgf*cm, | 75 in.*lbf) | ||||
| No. 3 engine room relay block assembly x Vehicle body | 8.0 N*m ( | 82 kgf*cm, | 71 in.*lbf) | ||||
| Wire harness clamp bracket x Vehicle body (RH side) | 8.0 N*m ( | 82 kgf*cm, | 71 in.*lbf) | ||||
| No. 1 engine room relay block and No. 1 junction block assembly x Vehicle body | 8.0 N*m ( | 82 kgf*cm, | 71 in.*lbf) | ||||
| Battery tray x Vehicle body | 5.4 N*m ( | 55 kgf*cm, | 48 in.*lbf) | ||||
| Engine coolant temperature sensor x Front water by-pass joint | with 19 mm union nut wrench | 16 N*m ( | 163 kgf*cm, | 12 ft.*lbf) | |||
| without 19 mm union nut wrench | 19.6 N*m ( | 200 kgf*cm, | 14 ft.*lbf) | ||||
| Engine oil temperature sensor x Oil filter bracket sub-assembly | with 19 mm ball joint lock nut wrench | 21 N*m ( | 214 kgf*cm, | 15 ft.*lbf) | |||
| without 19 mm ball joint lock nut wrench | 39.2 N*m ( | 400 kgf*cm, | 29 ft.*lbf) | ||||
| Knock control sensor x Cylinder block sub-assembly | 20 N*m ( | 204 kgf*cm, | 15 ft.*lbf) | ||||
| Case separator x Cylinder block sub-assembly | 10 N*m ( | 102 kgf*cm, | 7 ft.*lbf) | ||||
| Air fuel ratio sensor x Exhaust manifold RH | with SST | 39 N*m ( | 398 kgf*cm, | 29 ft.*lbf) | |||
| without SST | 44 N*m ( | 449 kgf*cm, | 32 ft.*lbf) | ||||
| Air fuel ratio sensor x Exhaust manifold LH | with SST | 39 N*m ( | 398 kgf*cm, | 29 ft.*lbf) | |||
| without SST | 44 N*m ( | 449 kgf*cm, | 32 ft.*lbf) | ||||
| Heated oxygen sensor x Front exhaust pipe assembly | with SST | 39 N*m ( | 398 kgf*cm, | 29 ft.*lbf) | |||
| without SST | 44 N*m ( | 449 kgf*cm, | 32 ft.*lbf) | ||||
| Brake tube bracket x Vehicle body | 8.0 N*m ( | 82 kgf*cm, | 71 in.*lbf) | ||||
Factory Service Tools
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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.
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