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 Mitsubishi RVR ES, AWDFACTORY OEM SERVICE PROCEDURE
General Specifications
| Descriptions | Specifications | ||
|---|---|---|---|
| Engine type | 4B12 | ||
| Bore x stroke mm (in) | 88.0 (3.46) x 97.0 (3.82) | ||
| Total displacement cm3 (cu in) | 2, 360 (144.0) | ||
| Combustion chamber | Pent-roof type | ||
| Number of cylinders | 4 | ||
| Valve mechanism | Type | DOHC | |
| Intake valve | 8 | ||
| Exhaust valve | 8 | ||
| Compression ratio | 10.5 | ||
| Valve timing | Intake valve | Opens | 0°BTDC - 40°BTDC |
| Closes | 64°ABDC - 24°ABDC | ||
| Exhaust valve | Opens | 44°BBDC - 24°BBDC | |
| Closes | 0°ATDC - 20°ATDC | ||
| Fuel injection system type | Electronic control MPI | ||
| Ignition system type | Electronic spark-advance control type (4-coil type) | ||
| Generator type | Alternating current system (with built-in IC regulator) | ||
| Starter motor type | Reduction drive type | ||
Factory Service Tools
Use the Manual With the Right Hardware
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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.