Page 2849 of 4323
B02608
x 10 Driven Rotor
Drive Rotor Oil Pump Body
Compression SpringOil Pump Body Cover
Non±reusable partRelief Valve Crankshaft
Front Oil Seal
Plug
49 (500, 36)
x 10
N´m (kgf´cm, ft´lbf) : Specified torque
10 (105, 8)
± LUBRICATIONOIL PUMP
LU±7
2841 Author: Date:
2005 SEQUOIA (RM1146U)
Page 2850 of 4323

LU08Q±10
B05837
Pull O±Ring
B05838
LU±8
± LUBRICATIONOIL PUMP
2842 Author: Date:
2005 SEQUOIA (RM1146U)
REMOVAL
HINT:
When repairing the oil pump, the oil pan and strainer should be
removed and cleaned.
1. REMOVE ENGINE FROM VEHICLE
(2WD: See page EM±79)
(4WD: See page EM±92)
2. INSTALL ENGINE TO ENGINE STAND FOR DIS-
ASSEMBLY
3. REMOVE TIMING BELT (See page EM±16)
4. REMOVE NO.1 IDLER PULLEY (See page EM±16)
5. REMOVE NO.2 IDLER PULLEY (See page EM±16)
6. REMOVE CRANKSHAFT TIMING PULLEY
(See page EM±16)
7. REMOVE CRANKSHAFT POSITION SENSOR
(See page IG±11)
8. REMOVE OIL DIPSTICK AND GUIDE
(a) Remove the bolt holding the oil dipstick to the LH cylinder
head.
(b) Pull out the dipstick guide together with the dipstick from
the No.1 oil pan.
(c) Remove the O±ring from the dipstick guide.
9. REMOVE OIL FILTER, OIL COOLER AND FILTER
BRACKET ASSEMBLY
(a) Disconnect the oil pressure switch connector.
(b) Take out the vinyl tape, and disconnect the wire from the
clamp.
(c) Turn the clamp counterclockwise, and remove the clamp
from the oil filter bracket.
(d) Disconnect the oil cooler hose from the oil cooler.
(e) Remove the 2 bolts, nut, the oil filter, oil cooler and filter
bracket assembly.
(f) Remove the gasket from the filter bracket.
Page 2851 of 4323
Z02375
SST
SST
B05839
B05840
B05841
Pry
RH Side LH Side
± LUBRICATIONOIL PUMP
LU±9
2843 Author: Date:
2005 SEQUOIA (RM1146U)
10. REMOVE NO.2 OIL PAN
(a) Remove the 24 bolts and 2 nuts.
(b) Insert the blade of SST between the No.1 and No.2 oil
pans, cut off applied sealer and remove the No.2 oil pan.
SST 09032±00100
NOTICE:
Be careful not to damage the No.2 oil pan contact sur-
face of the No.1 oil pan.
Be careful not to damage the No.2 oil pan flange.
11. REMOVE OIL PAN BAFFLE PLATE
Remove the 7 bolts, 2 nuts and baffle plate.
12. REMOVE NO.1 OIL PAN
(a) Remove the 18 bolts and 2 nuts.
(b) Using a screwdriver, remove the No.1 oil pan by prying
between the oil pan and cylinder block in the sequence
shown.
NOTICE:
Be careful not to damage the contact surface of the cylin-
der block and No.1 oil pan.
Page 2852 of 4323
B05842
B01044
B00951
LU±10
± LUBRICATIONOIL PUMP
2844 Author: Date:
2005 SEQUOIA (RM1146U)
13. REMOVE OIL STRAINER
Remove the 2 bolt, 2 nuts, oil strainer and gasket.
14. REMOVE OIL PUMP
(a) Remove the 8 bolts.
HINT:
Use a 6 mm hexagon wrench for the hexagon head bolt.
(b) Using a screwdriver, remove the oil pump by prying the
portions between the oil pump and cylinder block.
NOTICE:
Be careful not to damage the contact surface of the cylin-
der block and oil pump.
(c) Remove the O±ring from the cylinder block.
Page 2853 of 4323
LU08R±09
B02610
B02611
± LUBRICATIONOIL PUMP
LU±11
2845 Author: Date:
2005 SEQUOIA (RM1146U)
DISASSEMBLY
1. REMOVE RELIEF VALVE
Remove the plug, compression spring and relief valve.
2. REMOVE DRIVE AND DRIVEN ROTORS
Remove the 10 screws, pump body cover, the drive and driven
rotors.
Page 2854 of 4323

LU08S±07
B02609
B02613
B02614
B02615
LU±12
± LUBRICATIONOIL PUMP
2846 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT RELIEF VALVE
Coat the valve with engine oil and check that it falls smoothly
into the valve hole by its own weight.
If it doesn't, replace the relief valve. If necessary, replace the oil
pump assembly.
2. INSPECT DRIVE AND DRIVEN ROTORS
(a) Place the drive and driven rotors into the oil pump body.
(see page LU±14)
(b) Inspect the rotors for the body clearance.
Using a feeler gauge, measure the clearance between
the drive and driven rotor tips.
Standard tip clearance:
0.060 to 0.180 mm (0.0024 to 0.0071 in.)
Maximum tip clearance: 0.18 mm (0.0071 in.)
If the tip clearance is greater than maximum, replace the rotors
as a set.
(c) Inspect the rotors for the side clearance.
Using a feeler gauge and precision straight edge, mea-
sure the clearance between the rotors and precision
straight edge.
Side clearance:
0.030 to 0.090 mm (0.0012 to 0.0035 in.)
Maximum body clearance: 0.09 mm (0.0035 in.)
If the side clearance is greater than maximum, replace the ro-
tors as a set. If necessary, replace the oil pump assembly.
(d) Inspect the rotor for the body clearance.
Using a feeler gauge, measure the clearance between
the driven rotor and body.
Standard body clearance:
0.250 to 0.325 mm (0.0098 to 0.0128 in.)
Maximum body clearance: 0.325 mm (0.0128 in.)
If the body clearance is greater than maximum, replace the ro-
tors as a set. If necessary, replace the oil pump assembly.
(e) Remove the drive and drive rotors.
Page 2855 of 4323
LU0GX±05
A04865
A04866
SST
A04863Cut Position
A04864
SST
± LUBRICATIONOIL PUMP
LU±13
2847 Author: Date:
2005 SEQUOIA (RM1146U)
REPLACEMENT
REPLACE CRANKSHAFT FRONT OIL SEAL
HINT:
There are 2 methods ((a) and (b)) to replace the oil seal.
(a) If the oil pump is removed from the cylinder block:
(1) Using a screwdriver, pry out the oil seal.
(2) Using SST and a hammer, tap in a new oil seal until
its surface is flush with the oil pump body edge.
SST 09316±60011 (09316±00011)
(3) Apply MP grease to the oil seal lip.
(b) If the oil pump is installed to the cylinder block:
(1) Using a knife, cut off the oil seal lip.
(2) Using a screwdriver, pry out the oil seal.
NOTICE:
Be careful not to damage the crankshaft. Tape the screw-
driver tip.
(3) Apply MP grease to a new oil seal lip.
(4) Using SST and a hammer, tap in the oil seal until its
surface is flush with the oil pump body edge.
SST 09316±60011 (09316±00011)
Page 2856 of 4323
LU08U±07
B02612
B02611
B02610
LU±14
± LUBRICATIONOIL PUMP
2848 Author: Date:
2005 SEQUOIA (RM1146U)
REASSEMBLY
1. INSTALL DRIVE AND DRIVEN ROTORS
(a) Place the drive and driven rotors into pump body with the
marks facing the pump body cover side.
(b) Install the pump body cover with the 10 screws.
Torque: 10 N´m (105 kgf´cm, 7 ft´lbf)
2. INSTALL RELIEF VALVE
(a) Insert the relief valve and compression spring into the oil
pump body hole.
(b) Install the plug.
Torque: 49 N´m (500 kgf´cm, 36 ft´lbf)