The 2AZ engine is rather safe and its engine life comprises about 200,000 miles (300,000 km) of mileage, if thoroughly maintained. It may have a cylinder block thread stripped, vibration, jerking and so on, and so forth. The 2AZвЂ™s problems are also typical of the 1AZ, because of the same construction. Toyota 2AZВ engine problems andВ malfunctions The power of the motor is 150 HP at 6000 rpm and torque is 187 Nm (138 lb The motor operates by Atkinson cycle and is different for its camshafts and pistons of the other type with a 12.5-compression ratio, which is quite high. The 2AZ-FXE modification (2000 вЂ“ present) is a hybrid engine for Toyotas. Its compression ratio rose to 11, its power was 163 HP at 5800 rpm., its torque was 231 Nm (170 lb The 2AZ-FSE type (2000 вЂ“ 2009) resembled the 2AZFE one with a direct injection system. The engineвЂ™s power was 166 HP at 6000 rpm and torque was 224 Nm (165 lb In 2008 the engine got to be upgraded: its camshafts were replaced with a bit more aggressive ones, its compression ratio increased to 9.8. The 2AZ-FE modification (2000 вЂ“ present) is a basic motor having a compression rate of 9.6, capacity of over 160 horsepower at 5600 rpm with a torque of 220 Nm (162 lb Toyota 2AZВ engine modifications and differencesДЎ. In 2008 Toyota company introduced a successor of the 2AZ. Valve clearances are of the following sizes: 0.19 вЂ“ 0.29 mm for inlet valves and 0.30 вЂ“ 0.40mm for outlet valves. It results in regularly adjusting the valves each 60,000 miles (100,000 km) of mileage. The engine is very much similar to the 1AZ having a VVTi on the intake camshaft, electronic throttle body, timing chain, and possessing no hydraulic lifters. In the engineвЂ™s crankcase, there are two balancing shafts for decreasing vibrations and smooth motor work. Besides, the 2AZ cylinders were enlarged to 88.5 mm in diameter. The cylinder block was modified to fit the crankcase with 96 mm piston stroke. The 2AZ sort of engine was introduced in 2000 and replaced the Toyota 5S 2.2-liter engine. Toyota 2AZ-FE/FSE/FXE engine reliability, problems and repair Normal engine operating temperature, вЊ (F) Toyota Motor Manufacturing Kentucky, Inc.

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