Gasoline engines 4G9 of car Mitsubishi Space Star

Technical data
Working volume, cm³ — 1834 Cylinder diameter x piston stroke mm — 81.0x89.0 Compression ratio - 12.0 Combustion chamber type - Pentroof+tent type Camshaft arrangement -...

Checking and adjusting the tension of the generator drive belt
Examination Check the alternator drive belt tension as follows: Generator drive belt tension: oscillation frequency: 143-185 Hz tension: 294-490 N deflection (set...

Checking and adjusting the tension of the power steering pump and air conditioning compressor drive belt
Examination 1. Check the belt tension as follows: Using the MUT-II device Warning: Before connecting or disconnecting the MUT-II, turn off the ignition. For detailed...

Checking the ignition timing angle
1. Prepare the vehicle for testing (warm up the engine to operating temperature). 2. Turn off the ignition and connect the MUT-II device to the diagnostic connector. 3....

Checking the engine crankshaft speed at idle speed
1. Prepare the vehicle for testing (warm up the engine to operating temperature). 2. Turn off the ignition and connect the MUT-II device to the diagnostic connector. 3....

Checking the composition of the air-fuel mixture
1 Prepare the vehicle for testing (warm up the engine to operating temperature). 2. Turn off the ignition and connect the MUT-II device to the diagnostic connector. 3....

Compression check
1. Before checking, make sure that the engine oil level is normal, the battery is charged and the starter is working properly. Also prepare the car for checking (warm up...

Checking the vacuum in the intake manifold
Measuring vacuum is a reliable and relatively cheap way to diagnose an engine. The vacuum gauge readings can provide information on the condition of the cylinder-piston...

Checking and bleeding hydraulic valve clearance compensators
Examination If a characteristic abnormal noise appears after starting the engine and does not disappear after the engine warms up, the hydraulic valve clearance...

Crankshaft pulley for poly V-belt drive
Fig. 2.14. Crankshaft pulley for poly-pin belt drive: 1 - Power steering pump drive frame; 2 - generator drive belt; 3 - bolt, 177-186 Nm; 4 - washer; 5 - crankshaft...

Camshafts and camshaft seals
Fig. 2.16. Camshafts and camshaft seals of the engine since 1999: 1 - Fuel injector wiring harness support bracket; 2 - crankcase ventilation hose; 3-hose PCV; 4 -...

Oil pan
Removal Disconnect the cable from the negative terminal of the battery, Remove the lower engine splash shield. Remove the front exhaust pipe. Remove the plug and drain...

Crankshaft oil seals
Fig. 2.31. Crankshaft oil seals: 1 - crankshaft pulley; 2-segment key; 3 - crankshaft position sensor impeller; 4—crankshaft spacer sleeve; 5-front crankshaft oil seal;...

Cylinder head
Fig. 2.35. Cylinder head of the engine produced since 1999: 1- Electrical connectors of the injector wire harness; 2 - exhaust inlet pipe; 3 - exhaust manifold bracket;...

Toothed timing belt
Fig. 2.41. Timing drive toothed belt: 1 - generator tension bar; 2 - Upper front timing belt cover; 3 - Power steering pump support bracket; 4 - lower front toothed belt...

Removal and installation the engine
Fig. 2.60. Connection points for connectors and hoses to the engine since 1999: 1 - ignition coil connector; 2 - camshaft position sensor connector; 3 - coolant...

Intake manifold
The intake manifold is made of aluminum alloy, and its shape ensures optimal air flow during engine operation in all operating modes. If there are leaks in the intake...

Intake manifold of the 4G93-GCH engine since 2000
Removal Disconnect the cable from the negative battery terminal. Drain the coolant from the engine cooling system. Remove the air filter. Remove the ignition coils....

Exhaust manifold
Removal Disconnect the cable from the negative battery terminal. Remove the exhaust pipe. Loosen the bolt and remove the engine oil dipstick guide tube (Fig. 2.69). Fig....

Lubrication system
General information The lubrication system is a mixed type, under pressure and splashing, full-flow. The engine is lubricated under pressure, created by a pump driven by...

Motor oil
Use SG motor oil certified by the American Petroleum Institute (API). Motor oil with this trademark symbol meets all performance standards and fuel economy requirements...

Checking the engine oil level
The engine oil level is checked by the oil level indicator (dipstick) located on the front side of the engine. The oil level indicator (dipstick) passes through the...

Engine oil change
Periodic oil and oil filter changes are the most important preventative maintenance procedure. As motor oil ages, it becomes thin and contaminated, leading to premature...

Notice the oil filter
To ensure proper engine operation, only high-quality filters should be used. When replacing the filter, make sure that the rubber gasket from the old oil filter is...

Exhaust gas system.
Fig. 2.75. Exhaust system: 1 - smooth muffler; 2 - rear oxygen concentration sensor, 54 Nm; 3 - central exhaust pipe; 4 - catalytic converter; 5 - front oxygen...

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