Removal and Replacement

Oil Pump Assembly Removal and Installation

Oil Pump Assembly Components

Removal

1) Remove oil pan, oil strainer and oil pan baffle plate. Oil Pan and Oil Pump Strainer Removal and Installation
2) Remove oil pump sprocket cover (1).





3) Slacken tension of oil pump chain according to the following procedure.
a) Raise latch (4) of oil pump chain adjuster (1) in direction of arrow to disengage latch from plunger teeth.
b) Push plunger (2) into oil pump chain adjuster (1) and install retainer (3) (3 mm wire) to hold plunger in place.





4) Remove oil pump assembly according to the following procedure.
a) Remove oil pump bolts (4).
b) Remove oil pump chain (3) from oil pump sprocket (2).
c) Remove oil pump assembly (1) from lower crank case.






Installation

Oil Pump Inspection
1) Make sure dowel pins (1) are installed.





2) Align balancer shaft No.1 (2) at specified position according to the following procedure.
a) Insert special tool into aligning hole (1) in oil pump housing.
b) Turn balancer shaft No.1 (2) by hand and insert special tool into aligning hole (3) in balancer shaft.
Special Tool

(A): 09922-85811













3) Rotate crankshaft so that it is positioned as follows.
- Threaded holes line on crankshaft pulley (1) and lower crank case contact surface are set in parallel.
- Connecting rod cap (3) in cylinder No.1 is positioned close to exhaust manifold side (4).











4) Install oil pump chain to oil pump sprocket.
5) Install oil pump assembly to lower crank case.

Tightening torque
Oil pump bolt (M10) (a): 55 Nm (5.6 kgf-m, 40.5 lbf-ft)
Oil pump bolt (M8) (b): 25 Nm (2.5 kgf-m, 18.5 lbf-ft)





6) Remove retainer (3 mm wire) from oil pump chain adjuster.
7) Remove special tool from oil pump housing and rotate crankshaft clockwise to be positioned as follows.
- Threaded holes (2) on crankshaft pulley (1) and lower crank case contact surface are aligned parallel.
- Connecting rod cap (3) in cylinder No.1 is positioned close to exhaust manifold side (4).





8) Insert special tool to aligning hole (1) on oil pump housing and make sure the position of aligning hole (3) on balancer shaft No.1 (2) is proper.
Special Tool

(A): 09922-85811













9) Remove special tool from oil pump assembly, and then install oil pump sprocket cover (1).

Tightening torque
Oil pump sprocket cover bolt (a): 11 Nm (1.1 kgf-m, 8.5 lbf-ft)





10) Install oil pan, oil strainer and oil pan baffle plate. Oil Pan and Oil Pump Strainer Removal and Installation