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 MANUALSMITSUBISHI2009LANCER L4-2.4L (4B12)REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCOMPRESSOR HVACSERVICE AND REPAIROVERHAUL
2009 Mitsubishi Lancer L4-2.4L (4B12)
Overhaul
2009 Mitsubishi Lancer L4-2.4L (4B12)SECTION Overhaul
DISASSEMBLY AND ASSEMBLY
Disassembly Steps 1-11:
Required Special Tools:
- MB991367: Special Spanner
- MB991386: Pin
DISASSEMBLY SERVICE POINT
>>A<
ASSEMBLY SERVICE POINTS
>>A<< A/C COMPRESSOR HIGH PRESSURE RELIEF VALVE INSTALLATION
CAUTION:
Be careful not to damage the O-ring when installing the high-pressure relief valve. Apply the specified refrigerating machine oil the high-pressure relief valve mounting hole before installation.
Check that O-ring is installed to the high-pressure relief and use the adjust torque wrench to install the high-pressure relief valve to the main body of the compressor.
>>B<
Line up the pin hole on the compressor unit with the field core projection and attach.
>>C<
Using snap ring pliers, fit the snap ring so that the snap ring s tapered part is on the outside.
>>D<
Using a special tool, as when removing the nut, secure the armature and tighten the self-locking nut.
>>E<
Check whether or not the air gap of the clutch is within the standard value.
Standard value: 0.3 - 0.5 mm (0.012 - 0.020 inch)
NOTE: If there is a deviation of the air gap from the standard value, make the necessary adjustment by adjusting the number of shims.
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:
- • 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.