Toyota Prius: Oil Pump

Toyota Prius (XW60) 2023-2025 Service Manual / Engine/Hybrid System / 2zr-fxe (lubrication) / Oil Pump

Removal
Disassembly
Inspection
Reassembly
Installation

Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during oil pump assembly removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
: Even when not replacing the part, it is necessary to perform the specified necessary procedures after installation. 1: Also necessary after performing a tire rotation. *2: It is not necessary to perform this procedure if the tire pressure warning valve and transmitters are installed to the same location.
Replacement of ECM	Update ECU security key	Toyota Prius Vehicle Control History (RoB) are stored
	ECU configuration	-
	Perform Toyota Prius Vehicle Identification Number (VIN) registration	DTC is output
Replacement of throttle body assembly Replacement of cylinder head sub-assembly Replacement of camshaft (for intake or exhaust camshaft) Replacement of camshaft timing gear assembly Replacement of fuel injector assembly Replacement of ignition coil assembly Replacement of EGR valve assembly Gas leak from exhaust system is repaired	Inspection after repair	Poor idle, etc. Engine start function, etc.
Replacement of inverter with converter assembly	ECU configuration	-
Replacement of inverter with converter assembly	Resolver learning	DTCs are stored Slight vibration at a Toyota Prius vehicle speed of 5 km/h (3 mph) or less Shock or vibration during acceleration
Replacement of hybrid vehicle transaxle assembly	Resolver learning Initialize resolver	DTCs are stored Slight vibration at a Toyota Prius vehicle speed of 5 km/h (3 mph) or less Shock or vibration during acceleration
Suspension parts	Rear television camera assembly optical axis (Back camera position setting)	Parking Assist Monitor System
	Parking assist ECU initialization	Panoramic View Monitor System
	Parking assist ECU initialization	Advanced Park
Tires	Initialization12 Tire Position Identification12	Tire Pressure Warning System	Refer to Procedures Necessary When Replacing Parts (for Tire Pressure Warning System) table below
	Rear television camera assembly optical axis (Back camera position setting)	Parking Assist Monitor System
	Parking assist ECU initialization	Panoramic View Monitor System
	Parking assist ECU initialization	Advanced Park
Replacement of front bumper assembly*	Front television camera view adjustment	Panoramic View Monitor System
Replacement of front bumper assembly*	Front television camera view adjustment	Advanced Park

HINT:

When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.

Learning completes when Toyota Prius vehicle is driven

Effect/Inoperative Function When Necessary Procedures are not Performed	Necessary Procedures	Link
Front Camera System	Drive the Toyota Prius vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more.

Learning completes when vehicle is operated normally

Effect/Inoperative Function When Necessary Procedures are not Performed	Necessary Procedures	Link
1: w/o Power Back Door System 2: w/ Power Back Door System
Power Door Lock Control System*1 Back door opener	Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.
Power Back Door System*2	Reset back door close position
Air Conditioning System	After the ignition switch is turned to ON, the servo motor standard position is recognized.	-

CAUTION / NOTICE / HINT

COMPONENTS (REMOVAL)

Procedure		Part Name Code
1	CHAIN SUB-ASSEMBLY	13506	-	-	-
2	CRANKSHAFT TIMING SPROCKET	13521	-	-	-
3	CHAIN TENSIONER PLATE	13549	-	-	-
4	NO. 2 CHAIN SUB-ASSEMBLY	13507		-	-

Procedure		Part Name Code
5	NO. 2 OIL PAN SUB-ASSEMBLY	12102A		-	-
6	OIL PUMP ASSEMBLY	15100	-	-	-

PROCEDURE

1. REMOVE CHAIN SUB-ASSEMBLY

Click here

2. REMOVE CRANKSHAFT TIMING SPROCKET

Click here

3. REMOVE CHAIN TENSIONER PLATE

Click here

4. REMOVE NO. 2 CHAIN SUB-ASSEMBLY

Click here

5. REMOVE NO. 2 OIL PAN SUB-ASSEMBLY

Click here

6. REMOVE OIL PUMP ASSEMBLY

Disassembly

DISASSEMBLY

CAUTION / NOTICE / HINT

COMPONENTS (DISASSEMBLY)

Procedure		Part Name Code
1	OIL PUMP RELIEF VALVE PLUG	-		-	-
2	OIL PUMP RELIEF VALVE SPRING	-	-	-	-
3	OIL PUMP RELIEF VALVE	-	-	-	-
4	OIL PUMP COVER SUB-ASSEMBLY	-	-	-	-
5	OIL PUMP DRIVE ROTOR	-	-	-	-
6	OIL PUMP DRIVEN ROTOR	-	-	-	-

OIL PUMP BODY

PROCEDURE

1. REMOVE OIL PUMP RELIEF VALVE PLUG

(1) Using a 27 mm socket wrench, remove the oil pump relief valve plug from the oil pump body.

2. REMOVE OIL PUMP RELIEF VALVE SPRING

3. REMOVE OIL PUMP RELIEF VALVE

4. REMOVE OIL PUMP COVER SUB-ASSEMBLY

5. REMOVE OIL PUMP DRIVE ROTOR

6. INSTALL OIL PUMP DRIVEN ROTOR

Inspection

INSPECTION

PROCEDURE

1. INSPECT OIL PUMP RELIEF VALVE

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

(b) If the oil pump relief valve does not fall smoothly, replace the oil pump assembly.

2. INSPECT OIL PUMP ROTOR

(a) Check the side clearance.

(1) Using a feeler gauge and precision straightedge, measure the clearance between the oil pump drive rotor, oil pump driven rotor and precision straightedge.

Standard Side Clearance:

Maximum Side Clearance

Specified Condition

Result

0.16 mm

0.00630 in.

0.030 to 0.070 mm

0.00118 to 0.00276 in.

in.

(2) If the side clearance is greater than the maximum, replace the oil pump assembly.

(b) Check the tip clearance.

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

Standard Tip Clearance:

Maximum Tip Clearance

Specified Condition

Result

0.35 mm

0.0138 in.

0.04 to 0.16 mm

0.00157 to 0.00630 in.

in.

(2) If the tip clearance is greater than the maximum, replace the oil pump assembly.

(1) Using a feeler gauge, measure the clearance between the oil pump driven rotor and oil pump body.

Standard Body Clearance:

Maximum Body Clearance

Specified Condition

Result

0.325 mm

0.0128 in.

0.11 to 0.19 mm

0.00433 to 0.00748 in.

in.

(2) If the body clearance is greater than the maximum, replace the oil pump assembly.

Reassembly

REASSEMBLY

CAUTION / NOTICE / HINT

COMPONENTS (REASSEMBLY)

Procedure		Part Name Code
1	OIL PUMP DRIVE AND DRIVEN ROTORS	-		-	-
2	OIL PUMP COVER SUB-ASSEMBLY	-	-	-	-
3	OIL PUMP RELIEF VALVE	-		-	-
4	OIL PUMP RELIEF VALVE SPRING	-	-	-	-
5	OIL PUMP RELIEF VALVE PLUG	-	-	-	-

*1	OIL PUMP BODY	-	-
	Nm (kgfcm, ft.*lbf): Specified torque	-	-

PROCEDURE

1. INSTALL OIL PUMP DRIVE AND DRIVEN ROTORS

Mark

(1) Coat the oil pump drive rotor and oil pump driven rotor with engine oil, and place them into the oil pump body with the marks facing the oil pump cover sub-assembly side.

2. INSTALL OIL PUMP COVER SUB-ASSEMBLY

Torque:

8.8 N·m {90 kgf·cm, 78 in·lbf}

3. INSTALL OIL PUMP RELIEF VALVE

(1) Coat the oil pump relief valve with engine oil, and insert the oil pump relief valve into the oil pump body.

4. INSTALL OIL PUMP RELIEF VALVE SPRING

5. INSTALL OIL PUMP RELIEF VALVE PLUG

Torque:

49 N·m {500 kgf·cm, 36 ft·lbf}

Installation

INSTALLATION

CAUTION / NOTICE / HINT

COMPONENTS (INSTALLATION)

Procedure		Part Name Code
1	OIL PUMP ASSEMBLY	15100	-	-	-
2	NO. 2 OIL PAN SUB-ASSEMBLY	12102A		-	-

N*m (kgf*cm, ft.*lbf): Specified torque

Procedure		Part Name Code
3	NO. 2 CHAIN SUB-ASSEMBLY	13507		-	-
4	CHAIN TENSIONER PLATE	13549	-	-	-
5	CRANKSHAFT TIMING SPROCKET	13521	-	-	-
6	NO. 1 CYLINDER TO TDC (COMPRESSION)	-		-	-
7	CHAIN SUB-ASSEMBLY	13506	-	-	-