Timing Component Alignment Marks: Locations

CAUTION: Incorrect removal or installation of the timing chain can result in damage to internal engine components.

For complete Timing Chain Removal and Installation information, please refer to Timing Chain; Service and Repair. Service and Repair

CHAIN SUB-ASSEMBLY (for Bank 2)





(a) Align the No. 1 chain's orange mark plates with the camshaft timing gear's timing mark, and attach the chain to the gear as shown in the illustration.





(b) Align the No. 1 chain's orange mark plate with the crankshaft timing gear's timing mark, and attach the chain to the gear as shown in the illustration.





(c) Align the No. 2 chain's mark plates (yellow) with the timing marks of the camshaft timing gear assembly and camshaft timing exhaust gear assembly, and attach the No. 2 chain to the gears as shown in the illustration.

HINT: The crankshaft timing gear and camshaft exhaust gear assembly will be installed with the No. 1 and No. 2 chains connected to the gears.

(d) Install the crankshaft timing gear to the crankshaft.
(e) Align and attach the knock pin of the No. 1 camshaft with the pin hole of the camshaft timing gear assembly.
(f) Using the hexagonal portion of the No. 2 camshaft, align and attach the knock pin of the No. 2 camshaft with the pin hole of the camshaft timing exhaust gear assembly.
(g) Remove the pin from the No. 2 chain tensioner.






CHAIN SUB-ASSEMBLY (for Bank 1)





(a) Align the No. 1 chain's orange mark plates with the camshaft timing gear's timing mark, and attach the chain to the gear as shown in the illustration.





(b) Align the No. 1 chain's orange mark plate with the crankshaft timing gear's timing mark, and attach the chain to the gear as shown in the illustration.





(c) Align the No. 2 chain's mark plates (yellow) with the timing marks of the camshaft timing gear assembly and camshaft timing exhaust gear assembly, and attach the No. 2 chain to the gears as shown in the illustration.

HINT: The crankshaft timing gear and camshaft exhaust gear assembly will be installed with the No. 1 and No. 2 chains connected to the gears.

(d) Install the crankshaft timing gear to the crankshaft.
(e) Align and attach the knock pin of the No. 3 camshaft with the pin hole of the camshaft timing gear assembly.
(f) Using the hexagonal portion of the No. 4 camshaft, align and attach the knock pin of the No. 4 camshaft with the pin hole of the camshaft timing exhaust gear assembly.

NOTICE: Because the gears' timing mark positions may shift due to looseness of the No. 1 chain, use the hexagonal portion of the camshaft to hold the No. 3 camshaft in place until the No. 1 chain tensioner is installed.

(g) Remove the pin from the No. 2 chain tensioner.