The VVT-i system section explains how the camshaft timing oil control valve operates and provides inspection procedures. Chain tensioner inspection is also covered—the manual details how to check timing chain tension and replace tensioner components.
: The manual uses clear illustrations to show the exact sequence for removing components like the timing chain and cylinder head, which is vital for preventing the common "stripped thread" issue in these blocks. 1az fse engine toyota repair manual
These procedures use the "plastic region" method, requiring an initial torque followed by a specific angle turn. Cylinder Head Bolts Tighten to 79 Nm (58 ft-lb) starting from the center and working outward. Mark the bolt heads at the 12 o'clock position with paint. Turn all bolts clockwise. Main Bearing Caps Initial torque: 40 Nm (29.5 ft-lb) Turn all bolts Connecting Rods : Tighten to , then turn 4. Specialized D-4 Fuel System The VVT-i system section explains how the camshaft
: Generally 9.8:1 to 11.0:1 depending on the specific model year and market. Camshaft Timing Gear Torque : 78 N·m (790 kgf·cm, 58 ft·lbf). Common Repair & Maintenance Procedures These procedures use the "plastic region" method, requiring
Unlike the 1AZ-FE, the FSE variant injects fuel directly into the combustion chamber. This provides better fuel economy and power but introduces unique challenges: carbon buildup on intake valves, high-pressure fuel pump failures, and specialized injector servicing.
Follow the torque steps: Torque all to 79 Nm (58 ft-lbs), then mark the bolt heads and turn each bolt exactly 90° clockwise. 6. Fluid and Maintenance Capacities Fluid Type Recommended Specification With Filter Change 4.2 Liters (4.4 US qts) API SM/SN, SAE 5W-30 or 0W-20 Engine Oil Without Filter Change 4.0 Liters (4.2 US qts) API SM/SN, SAE 5W-30 or 0W-20 Cooling System Total Capacity Approx. 6.5 Liters Toyota Super Long Life Coolant (Pink)