Toyota 13050-22011 Gear Assy, Camshaft Timing

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For this procedure, special tools are needed hence once you go through the whole process, it's time to get the necessary tools and equipment. First of all, unwind the cable on the minus terminal of the battery then, unwind the drivebelt of the car and the alternator. Then, you should remove the windshield washer reservoir and the valve cover. Park the car and set the parking brake, move the shifter to Park or turn the transmission to gear, then unscrew the lug nuts on the right front wheel, lift the car and put it on jack stands. Disconnected the right front wheel and splash shield, and drain the cooling system as well. As the coolant is draining, unbolt the power steering pump from the engine but do not take off the fluid lines and then secure it to the body. The piston nearest to the timing belt, the first piston, must be located at top dead center on the compression stroke, aligning the timing marks. Loosen the bolts of the crankshaft pulley /vibration damper carefully and take it off in such a way that there is no shifting of the engine from TDC. Climb up and support the engine from above then drop down and support it from below then the next things to be removed are the passenger side engine mount, the drivebelt tensioner, the engine mount bracket and crankshaft position sensor bolted to the timing chain cover. Loosen the water pump and timing chain tensioner bolts, then the cover bolts securing the timing chain cover to the engine block, and lift the cover up. Remove the crankshaft position sensor reluctor ring by sliding it off the crankshaft, take off the timing chain tensioner pivot arm/chain guide and lift the timing chain off the camshaft sprockets and timing chain and crankshaft sprocket both will removed together. Visually examine all components for signs of wear and or damage, including the timing chain as well as the chain sprockets. Scrape off any remnants of the previous sealant on the timing chain cover and mating surfaces; also, put the camshaft sprockets on the places where they were previously located and tighten the bolts with thread locking compound. Turn the camshafts in order to have two TDC marks to be aligned and if needed turn the crankshaft in order to have keyway to be vertical. Place the slot of the stationary timing chain guide on the corresponding cylinder head dowel pin and fit the timing chain on to the crankshaft sprocket with the No.1 coloured link adjacent to the sprocket mark. Insert the timing chain into the guide and around the teeth of the camshaft sprockets ensuring that the rest of the links are colored. Take out slack through the chain and then put in the timing chain tensioner pivot arm/chain guide and fasten the bolt for the arm. Make sure that the #1 piston is at the TDC and the marks are lined properly. Align the crankshaft position sensor reluctor ring with the arrow and insert it in a manner that has the 'F' marked towards the outside, apply the RTV silicone sealant on the mating surfaces of the timing chain cover and bolt the cover while tightly torquing the bolts with equal force. Fit the new water pump O-ring, water pump and engine mount bracket having put sealer on the bolts threads of the bracket. Bolt and lock the timing chain tensioner then re-oil the O-ring and insert the tensioner back into the timing chain cover compartment. Match-mark the crankshaft pulley/vibration damper and apply a new chain by rotating the engine clockwise until the plunger applies tension to the timing chain. Turn the engine over several revolutions to get the number one piston at the top dead center and ensure that timing marks are in position. This leaves the rest of the installation as the mirror opposite of removal.

If the resistance is acceptable, remove the oil control valve and check the operation of the control valve plunger by applying battery voltage to the terminals. The plunger should move outward when voltage is applied and inward when it is not.

Remove slack from the left side of the chain and install the timing chain tensioner pivot arm/chain guide.

The VVT (Variable Valve Timing) system is used on all models to vary intake camshaft timing.