General Information When diagnosing lubrication system malfunctions, check all obvious items related to oil pressure, such as: gauges, high and low oil level, excessive oil contamination, oil viscosity, etc.
The main bearings and the valve train are lubricated by pressurized oil directly from the main oil rifle. The other power components, connecting rods, pistons, and camshaft receive pressurized oil indirectly from the main oil rifle. The drillings in the crankshaft supply oil to the connecting rod bearings. The oil is supplied to the camshaft… Read More »
The turbocharger receives filtered, cooled and pressurized lubricating oil through a supply line from the filter head. A drain line connected to the bottom of the turbocharger housing returns the lubricating oil to the lubricating oil pan through a fitting in the cylinder block.
Lubricating Oil Pump The engine uses a gerotor type lubricating oil pump (1). The machined cavity in the block is the same for all engines. A wider gerotor is used in the six cylinder engine to increase the lubricating pump capacity. Consequently, the 4 cylinder and 6 cylinder lubricating pumps are not interchangeable. Pressure Regulating… Read More »
Remove the expansion plugs from the coolant passages as shown. Apply a bead of Loctite 277 to the coolant passage expansion plugs.
Preparatory Steps: • Drain the coolant. • Remove the drive belt. • Disconnect negative battery cable. • Disconnect the upper radiator hose. 13 mm, 16 mm Remove the alternator mounting capscrew, loosen the alternator link capscrew and lower the alternator. 10 mm Remove the thermostat housing, lifting bracket, thermostat and thermostat seal. Clean the mating… Read More »
Preparatory Steps: • Drain the coolant. • Remove the drive belt. 13 mm Remove the two capscrews and water pump, and complete the following steps. Clean the sealing surface on the cylinder block. Install the new sealing ring into the pump groove. 13 mm Install the water pump. Torque Value: 24 N®m [18 ft-lb]
Caution: Never use water alone for coolant. Damage from corrosion can be the result of using water alone for coolant. NOTE: A 50 percent mixture of antifreeze and water must be premixed before filling the system. The ability of anti freeze to remove heat from the engine is not as good as water, so pouring… Read More »
Warning: Wait until the temperature is below 50°C [122°F] before removing the coolant system pressure cap. Failure to do so can cause personal injury from heated coolant spray. Drain the cooling system by opening the drain valve on the radiator and removing the plug in the bottom of the water inlet. A drain pan with… Read More »