Toyota Tundra. Manual — part 2273

1. Using a screwdriver and wooden block, pry out the oil seal.

HINT:

Tape the screwdriver tip before use.

Fig. 23: Prying Out Oil Seal
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

DISASSEMBLY

1. REMOVE OIL PUMP OUTLET PIPE

a. Remove the 3 bolts and outlet pipe.

Fig. 24: Identifying Outlet Pipe Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Remove the 2 O-rings.

2. REMOVE OIL PUMP COVER

a. Remove the 7 bolts, oil pump cover, drive rotor and driven rotor.

NOTE:

Do not damage the surface of the oil seal press fit hole and
crankshaft.

2009 Toyota Tundra

2009 ENGINE Lubrication (1GR-FE) - Tundra

Fig. 25: Identifying Oil Pump Cover Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3. REMOVE OIL PUMP RELIEF VALVE

a. Remove the plug, spring and relief valve.

INSPECTION

1. INSPECT OIL PUMP RELIEF VALVE

a. Coat the valve with engine oil, then check that it falls smoothly into the valve hole by its own

weight. If it does not, replace the relief valve. If necessary, replace the oil pump assembly.

Fig. 26: Inspecting Oil Pump Relief Valve
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2. INSPECT OIL PUMP ROTOR SET

a. Place the drive and driven rotors into the timing chain cover with the matchmarks facing upward.

2009 Toyota Tundra

2009 ENGINE Lubrication (1GR-FE) - Tundra

Fig. 27: Placing Drive And Driven Rotors Into Timing Chain Cover With Matchmarks
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Check the rotor tip clearance.

1. Using a feeler gauge, measure the clearance between the drive and driven rotor tips.

Standard tip clearance:

0.06 to 0.16 mm (0.00236 to 0.00630 in.)

Maximum tip clearance:

0.16 mm (0.00630 in.)

If the clearance is greater than the maximum, replace the timing chain cover sub-assembly.

Fig. 28: Measuring Clearance Between Drive And Driven Rotor Tips
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c. Check the rotor side clearance.

1. Using a feeler gauge and precision straightedge, measure the clearance between the rotors

and precision straightedge.

Standard side clearance:

0.03 to 0.09 mm (0.00118 to 0.00354 in.)

2009 Toyota Tundra

2009 ENGINE Lubrication (1GR-FE) - Tundra

Maximum side clearance:

0.09 mm (0.00354 in.)

If the clearance is greater than the maximum, replace the timing chain cover sub-assembly.

Fig. 29: Measuring Clearance Between Rotors And Precision Straightedge
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

d. Check the rotor body clearance.

1. Using a feeler gauge, measure the clearance between the driven rotor and body.

Standard body clearance:

0.250 to 0.325 mm (0.00984 to 0.0128 in.)

Maximum body clearance:

0.325 mm (0.0128 in.)

If the clearance is greater than the maximum, replace the timing chain cover sub-assembly.

Fig. 30: Measuring Clearance Between Driven Rotor And Body
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

REASSEMBLY

2009 Toyota Tundra

2009 ENGINE Lubrication (1GR-FE) - Tundra