Toyota 11302-AC010
Timing Cover, Lower

The first step for removing and changing the timing cover includes power steering link assembly disassembly followed by differential carrier assembly front removal. Starting with coolant and oil drainage the technician should remove battery components together with V-bank cover before proceeding. The removal process starts with removing the radiator support seal upper through unfastening its 11 retaining clips. Start by releasing the fan through fluid coupling until you can remove both the generator V belt and the fan with fluid coupling attached. The user should disconnect ventilation hose No.2 while removing the air cleaner assembly. Start by removing the oil level gauge guide after removing its bolt as well as the gauge and O-ring. Disassemble the vane pump unit and extract the generator unit after eliminating the water inlet. The first task is to separate the cooler compressor assembly before removing the V-ribbed belt tensioner assembly alongside the No.2 idler pulley sub-assembly and the No.1 idler pulley sub-assembly. The maintenance begins by removing the crankshaft pulley followed by No.2 oil pan sub-assembly and oil strainer sub-assembly and oil pan sub-assembly. The service engineer should detach the intake air surge tank followed by the ignition coil assembly and each one of the right and left cylinder head cover sub-assemblies. Uninstall the camshaft timing oil control valve assembly by disconnecting its two connectors then removing the two bolts and valves. First disconnect the VVT sensor along with the oil filter bracket sub-assembly through removal of three bolts and two nuts and a gasket. First complete the timing chain cover removal by extracting the 24 bolts and two nuts before gently separating the cover with care toward shield contact surfaces while taking out the O-ring from the left-hand cylinder head. The technician should extract the timing chain cover oil seal using a screwdriver but should protect the oil pump assembly by wrapping the screwdriver tip with tape.

Special Service Tool 09226-10010 coupled with a hammer needs to be used for installing the timing chain cover oil seal properly before greening the lip of the seal with MP grease. Begin by clearing all old packing (FIPG) materials while maintaining contact surfaces of the timing chain cover along with cylinder head and cylinder block free from contamination. The LH cylinder head requires a new O-ring while continuous threads of Toyota Genuine Seal Packing Black or Three Bond 1207B and equivalent materials run at specified locations. Seal Packing 1282B and Three Bond 1282B or equivalent must be used when working on the water pump part. Apply the seal packing on the timing chain cover only within three minutes before installation then secure the fasteners within 15 minutes while avoiding packing at the designated area. Attach the oil pump drive rotor to the crankshaft timing gear before using 24 bolts along with 2 nuts to fasten it securely with a 23 Nm (235 kgf-cm, 17 ft-lbf) torque specification. The oil filter bracket sub-assembly requires new gasket installation before securing it with 3 bolts and 2 nuts, torque should be set to 19 Nm (194 kgf-cm, 14 ft-lbf). Install the VVT sensor as well as the camshaft timing oil control valve assembly before positioning both cylinder head cover sub-assemblies (LH and RH). Finish the installation by tightening the ignition coil assembly to 10 Nm (102 kgf-cm, 7 ft-lbf) followed by the intake air surge tank then add the oil sub-assembly and strainer sub-assembly of No.2 oil before securing the crankshaft pulley and sub-assemblies of No.2 idler pulley along with the V-ribbed belt tensioner and cooler compressor assembly but retain the generator assembly and vane pump based on need. Install the water inlet followed by the oil level gauge guide and air cleaner assembly and connect the ventilation hose No.2. Fully tighten all components after you install the fan with fluid coupling and the fan and generator V belt. Secure the radiator support seal upper while installing the battery together with the differential carrier assembly front and power steering link assembly. End your task by adding engine oil and coolant while inspecting for leaks before installing the V-bank cover along with its two nuts tightened to 7.5 Nm (76 kgf-cm, 66 in-lbf).

Align the oil pump drive rotor with the crankshaft timing gear, install the cover with 24 bolts and 2 nuts, and torque them to 23 Nm (235 kgf-cm, 17 ft. lbs.).

Loosen the fan with fluid coupling, remove the fan and generator V belt, and then the fan with fluid coupling.

Remove the power steering link assembly, differential carrier assembly front (4WD drive type), drain the engine coolant and oil, and then remove the battery, V-bank cover, and radiator support seal upper by taking out the 11 clips.

Connect ventilation hose No.2, install the fan with fluid coupling, and the fan and generator V belt, fully tightening the fan with fluid coupling.