Toyota 13054-50020
Camshaft Sub-Assembly

When installing the No. 1 camshaft hold it at a level position to protect the cylinder head. Together with the timing mark (1-dot mark) of the camshaft timing gear line up the mark link (yellow). After applying new engine oil to the thrust portions and journals place the No. 1 chain briefly on the No. 2 chain. Then use the knock pin hole to position the knock pin of the No. 1 camshaft into the camshaft timing gear. Start by fitting the camshaft timing gear set bolt temporarily before placing the No. 1 camshaft to the cylinder head RH with cam lobes oriented downward. Then add the 4 bearing caps to their correct spots. First cover bearing cap bolt threads and their undersurface with light engine oil before equally installing all 8 bearing cap bolts at 9.0 Nm for 10 mm heads or 24 Nm for 12 mm heads. The No. 1 camshaft should get rotated clockwise until the timing marks align before using a wrench to grip its hexagonal portion. Then tighten the camshaft timing gear set bolt to 100 Nm. Working on the No. 2 chain tensioner assembly requires first pushing the tensioner and inserting a 1.0 mm pin to secure it. Next, temporarily add the camshaft timing gear and No. 2 chain tensioner before tightening the No. 2 chain tensioner bolt to 19 Nm. The installation process for the No. 2 camshaft begins by placing it onto the right-hand cylinder head with upward-facing cam lobes then adding the bearing caps followed by engine oil distribution to the bolts before installing all 8 pieces with matching torque specifications from the No. 1 camshaft. After aligning the knock pin by turning the No. 2 camshaft clockwise you should hold it with a wrench before installing the camshaft timing gear set bolt to 100 Nm while removing the pin from the No. 2 chain tensioner. To install the No. 1 chain tensioner assembly first push the plunger while rotating the stopper plate counter-clockwise then fix the stopper with a 3.5 millimeter bar before installing the tensioner using two 10 Nm torque bolts but keep the bar in position. Finally dismantle the 3.5 millimeter bar. Apply a new gasket following installation of the timing chain cover plate with 4 bolts torqued to 9.0 Nm as you fully rotate the crankshaft pulley twice before verifying the timing mark alignment. To install the cylinder head cover sub-assembly LH start by removing old packing material and using Toyota Genuine Seal Packing Black or Three Bond 1207B equivalent and installing the sub-assembly with torques specified for the 10 bolts and 2 nuts. First bolt down the ignition coil with 10 Nm torque values then put on the intake air surge tank with new gasket and 4 bolts at 28 Nm. Finish the installation with the nuts receiving 28 Nm torque. First install necessary hoses and clamps before torquing the two V-bank cover nuts to 7.5 Nm then check for any engine coolant leaks after adding the coolant.

Keep it level during removal, raise the No. 2 chain tensioner, and insert a 1.0 mm pin to fix it.

Push in the tensioner, insert a 1.0 mm pin to fix it, and temporarily install the camshaft timing gear and No. 2 chain tensioner.

Ensure not to rotate the crankshaft with the tensioner removed, and push in the plunger while fixing the stopper plate with a 3.5 mm bar.

Remove old packing, apply seal packing (Part No. 08826-00080), install seal washers, and tighten with 10 bolts and 2 nuts.

Begin by installing the camshaft sub gear, which involves placing the gear spring, sub gear, and wave washer, ensuring the pins on the gears attach to the gear spring ends, followed by using snap ring pliers to install the snap ring.

Hold the camshaft with a wrench while removing the 4 bolts.

Apply MP grease to the lip of a new oil seal and insert two new oil seals into the camshaft timing tube until they reach the stopper.

They can prevent more significant issues and extend the engine's lifespan.

09960-10010.

Remove the No. 1 chain and the No. 1 chain vibration damper.

Remove the timing chain cover sub-assembly.