CAUTION: Incorrect removal or installation of the timing chain can result in damage to internal engine components.
For service information relating to this component, please refer to Engine; Service and Repair; Overhaul for additional information. See: Service and Repair
CAMSHAFT TIMING GEARS AND NO. 2 CHAIN (for Bank 1)
a. Align the mark plate (yellow) with the timing marks (1-dot mark) of the camshaft timing gears as shown in the illustration. b. Apply a light coat of engine oil to the bolt threads and bolt-seating surface. c. Align the knock pin of the camshaft with the pin hole of the camshaft timing gear. Install the camshaft timing gear and camshaft timing exhaust
gear RH with the No. 2 chain installed.
d. Hold the hexagonal portion of the camshaft with a wrench, and tighten the 2 bolts.
Lexus Is250 Engine
Torque: 100 Nm (1,020 kgf-cm, 74 ft. lbs.)
Lexus Is 250 Manual Pdf
e. Remove the pin from the chain tensioner.
CAMSHAFT TIMING GEARS AND NO. 2 CHAIN (for Bank 2)
a. Align the mark plate (yellow) with the timing marks (2-dot mark) of the camshaft timing gears as shown in the illustration. b. Apply a light coat of engine oil to the bolt threads and bolt-seating surface. c. Align the knock pin of the camshaft with the pin hole of the camshaft timing gear. Install the camshaft timing gear and camshaft timing exhaust