49. Oil Pump Drive Chain and Sprocket Installation

Oil Pump Drive Chain and Sprocket Installation




1. Set the crankshaft key (1) in the left horizontal position.
2. Turn the cutout (2) of the drive shaft so that it faces upward.




3. Align the yellow mark links (2, 5) with the timing marks (1, 4) of each gear as shown in the illustration.
4. Install the sprockets onto the crankshaft and oil pump shaft with the chain wrapped on the gears.
5. Temporarily tighten the oil pump drive shaft sprocket with the nut.





Caution: Refer to Fastener Caution (Fastener Caution).

6. Insert the damper spring (2) into the adjusting hole, and then install the chain tensioner plate (3) with the bolt (1).

Tighten the bolt to 12 Nm (9 lb ft).




7. Align the adjusting hole on the oil pump drive shaft sprocket with the groove on the oil pump.
8. Insert a 4 mm diameter bar (1) into the adjusting hole on the oil pump drive shaft gear to lock the gear in position, and then tighten the nut.

Tighten the nut to 30 Nm (22 lb ft).