Mitsubishi Galant/Mirage/Diamante 1990-2000

Engine

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REMOVAL & INSTALLATION



In the process of removing the engine, you will come across a number of steps which call for the removal of a separate component or system, such as "disconnect the exhaust system" or "remove the radiator." In most instances, a detailed removal procedure can be found elsewhere in this guide.

It is virtually impossible to list each individual wire and hose which must be disconnected, simply because so many different model and engine combinations have been manufactured. Careful observation and common sense are the best possible approaches to any repair procedure.

Removal and installation of the engine can be made easier if you follow these basic points:



If you have to drain any of the fluids, use a suitable container.
 
Always tag any wires or hoses and, if possible, the components they came from before disconnecting them.
 
Because there are so many bolts and fasteners involved, store and label the retainers from components separately in muffin pans, jars or coffee cans. This will prevent confusion during installation.
 
After unbolting the transmission or transaxle, always make sure it is properly supported.
 
If it is necessary to disconnect the air conditioning system, have this service performed by a qualified technician using a recovery/recycling station. If the system does not have to be disconnected, unbolt the compressor and set it aside.
 
When unbolting the engine mounts, always make sure the engine is properly supported. When removing the engine, make sure that any lifting devices are properly attached to the engine. It is recommended that if your engine is supplied with lifting hooks, your lifting apparatus be attached to them.
 
Lift the engine from its compartment slowly, checking that no hoses, wires or other components are still connected.
 
After the engine is clear of the compartment, place it on an engine stand or workbench.
 
After the engine has been removed, you can perform a partial or full teardown of the engine using the procedures outlined in this guide.
 

  1. Relieve fuel system pressure.
  2.  


CAUTION
Observe all applicable safety precautions when working around fuel. Whenever servicing the fuel system, always work in a well ventilated area. Do not allow fuel spray or vapors to come in contact with a spark or open flame. Keep a dry chemical fire extinguisher near the work area. Always keep fuel in a container specifically designed for fuel storage; also, always properly seal fuel containers to avoid the possibility of fire or explosion.

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the engine undercover if equipped.
  4.  
  5. Matchmark the hood and hinges and remove the hood assembly.
  6.  
  7. Remove the air cleaner assembly and all adjoining air intake duct work.
  8.  
  9. Drain the engine coolant, remove the radiator hoses, and remove the radiator assembly, coolant reservoir, and intercooler, as equipped.
  10.  


CAUTION
Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.

  1. Remove the transaxle and transfer case as equipped.
  2.  
  3. Tag and detach the following electrical connections:
  4.  
  5. Accelerator cable
  6.  
  7. Heater hoses
  8.  
  9. Brake booster vacuum hose
  10.  
  11. Vacuum hoses
  12.  
  13. Fuel lines
  14.  
  15. Engine ground cables
  16.  
  17. Any applicable sensors
  18.  
  19. Coolant temperature and oil pressure sending units
  20.  
  21. Exhaust Gas Recirculation (EGR) temperature sensor
  22.  
  23. Connection for the idle speed control motor
  24.  
  25. Fuel injectors
  26.  
  27. Power transistor
  28.  
  29. Ignition coil and any applicable distributor connections
  30.  
  31. The connections for the alternator
  32.  
  33. Power steering pressure switch
  34.  
  35. A/C compressor
  36.  
  37. Refrigerant temperature switch
  38.  
  39. Condenser
  40.  
  41. Remove the air conditioner drive belt and the air conditioning compressor. Leave the hoses attached. Do not discharge the system. Place the compressor aside and secure it using a suitable device.
  42.  
  43. Remove the power steering pump and place the pump aside and secure it using a suitable device.
  44.  
  45. Remove the exhaust manifold-to-exhaust pipe nuts. Discard the gasket.
  46.  
  47. Install the engine hoist equipment and make certain the attaching points on the engine are secure.
  48.  
  49. Raise the hoist enough to support the engine.
  50.  
  51. Remove the front and rear engine roll stoppers.
  52.  
  53. Remove the left engine mount and support bracket.
  54.  


WARNING
Double check that all cables, hoses, harness connectors, etc., are disconnected from the engine.

  1. Slowly lift the engine and remove it from the vehicle.
  2.  

To install:

  1. Install the engine and secure all control brackets and mounts.
  2.  
  3. Install the transaxle, and transfer case if equipped.
  4.  
  5. The balance of the installation is the reverse of removal with the addition of the following notes:
  6.  

  1. Use new clamps or O-rings to connect the high pressure fuel line and the fuel return line.
  2.  
  3. Use new gaskets to connect the exhaust system to the engine.
  4.  
  5. Fill the engine with the proper amount of engine oil and coolant.
  6.  
  7. Start the engine, allow it to reach normal operating temperature.
  8.  
  9. Check for leaks.
  10.  
  11. Check the ignition timing and adjust if necessary.
  12.  
  13. Road test the vehicle and check all fluid levels and functions for proper operation.
  14.  



Click image to see an enlarged view

Fig. Alignment of the engine mount stopper bracket-Diamante shown

 
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