Timing Chain: Service and Repair

-
TIMING DRIVE COMPONENTS REMOVAL/INSTALLATION - HYBRID

Removal

CAUTION: Do not loosen or remove the crankshaft pulley bolt without first installing the special tools as instructed in this procedure. The crankshaft pulley and the crankshaft timing sprocket are not keyed to the crankshaft. The crankshaft, the crankshaft sprocket and the pulley are fitted together by friction, using diamond washers between the flange faces on each part. For that reason, the crankshaft sprocket is also unfastened if you loosen the pulley bolt. Before any repair requiring loosening or removal of the crankshaft pulley bolt, the crankshaft and camshafts must be locked in place by special service tools, otherwise severe engine damage can occur.

CAUTION: During engine repair procedures, cleanliness is extremely important. Any foreign material (including any material created while cleaning gasket surfaces) that enters the oil passages, coolant passages or the oil pan can cause engine failure.
1. With vehicle in NEUTRAL, position it on a hoist. See Lifting.

2. Remove the engine front cover. See - Service and Repair.






3. Remove the timing chain tensioner.
a. Compress the timing chain tensioner, and insert a paper clip into the hole to retain the tensioner.

b. Remove the bolts and timing chain tensioner.






4. Remove the RH timing chain guide.






5. Remove the timing chain.






6. Remove the bolts and the LH timing chain guide.






7. Remove the bolts and the camshaft sprockets.

- Use the flats on the camshaft to prevent camshaft rotation.

CAUTION: Do not rely on the camshaft alignment plate to prevent camshaft rotation. Damage to the tool or the camshaft can occur.

Installation





1. Install the camshaft sprockets and the bolts. Do not tighten the bolts at this time.






2. Install the LH timing chain guide and the bolts.

- Tighten to 10 Nm {1.0 kgf-m, 89 in-lbf}.






3. Install the timing chain.






4. Install the RH timing chain guide.






5. Install the timing chain tensioner and the bolts. Remove the paper clip to release the piston.

- Tighten to 10 Nm {1.0 kgf-m, 89 in-lbf}.






6. Using the flats on the camshaft to prevent camshaft rotation, tighten the bolts.

- Tighten to 72 Nm {7.3 kgf-m, 53 ft-lbf}.

CAUTION: The special tool 303-465 is for camshaft alignment only. Using this tool to prevent engine rotation can result in engine damage.
7. Install the engine front cover. See - Service and Repair.