Timing Cover: Service and Repair
Service Data Update
Date: August 19, 2010
ARMADA AND TITAN; REVISED UPPER OIL PAN AND TIMING CHAIN CASE PROCEDURES
APPLIED VEHICLES:
2004-2010 Armada (TA6O)
2004-2010 Titan (A60)
SERVICE INFORMATION
Removal and installation procedures for the upper oil pan and timing chain case have been updated to no longer require engine removal and installation.
Nissan Service Data for 2004-2010 Armada and Titan vehicles will be updated with these new procedures. Updated Service Data will be distributed to the field as quickly as possible.
The standard Flat Rate Times will be adjusted to reflect the new procedures.
Until the updated Service Data is made available, please use the procedures shown below for any upper oil pan and timing chain case-related repairs on an Applied Vehicle.
OIL PAN AND OIL STRAINER
Exploded View
Removal and Installation
REMOVAL
1. Disconnect battery negative terminal.
2. Remove the air dam and necessary undercovers if equipped.
3. Drain engine oil.
WARNING:
To avoid the danger of being scalded, never drain the engine oil when the engine is hot.
4. Remove the oil cooler.
5. Disconnect A/T cooler hoses from radiator.
6. Remove lower radiator hose and pipe assembly.
7. Remove RH and LH front wheel and tire using power tool.
8. Remove the power steering pump without disconnecting the power steering hoses and position aside.
9. Remove air duct and resonator assembly.
10. Remove upper radiator hose.
11. Disconnect coolant reservoir hose from radiator.
12. Remove crankshaft driven type cooling fan.
13. Disconnect the following connectors.
- Harness ground
- Power steering switch
- A/C compressor
- Oil pressure switch
14. Remove generator and generator bracket.
15. Remove A/C compressor without disconnecting the A/C pipes and position aside.
16. Remove front frame crossmember using power tool.
17. Remove the front final drive (4WD only).
18. Remove the steering gear.
19. Remove the oil pressure switch.
20. Remove the oil pan (lower). Using the following steps.
a. Remove the oil pan (lower) bolts in the reverse order as shown using power tool.
b. Insert Tool between the oil pan (lower) and the oil pan (upper).
Tool number: KVIOIIIIOO (J-37228)
CAUTION:
- Be careful not to damage the mating surface.
- Do not insert a screwdriver, this will damage the mating surfaces.
c. Tap (1) Tool to insert it then slide (2) Tool by tapping its side with a hammer to remove the oil pan (lower) from the oil pan (upper).
21. Remove the oil strainer from the oil pan (upper).
22. Remove the oil pan (upper) using the following steps.
a. Remove the oil pan (upper) bolts in the reverse order as shown.
b. Remove the oil pan (upper) from the cylinder block by prying it at the points shown using suitable tool.
CAUTION:
Do not damage mating surface.
23. Remove the O-rings from the oil pump and front cover.
CAUTION:
Do not reuse O-rings.
INSPECTION AFTER REMOVAL
Clean the oil strainer.
INSTALLATION
1. Install the oil pan (upper) using the following steps.
a. Using a scraper to remove old liquid gasket from mating surfaces.
- Also remove old liquid gasket from mating surface of oil pan (upper).
- Remove old liquid gasket from bolt holes and threads.
CAUTION:
Do not scratch or damage the mating surfaces when cleaning off old liquid gasket.
b. Apply a continuous bead of liquid gasket as shown using Tool.
Tool number: WS39930000 ( - )
Use Genuine RTV Silicone Sealant or equivalent.
CAUTION:
- Apply liquid gasket to outside of bolt hole for the hole shown by *.
Installation should be done within 5 minutes after applying liquid gasket.
c. Install new O-rings to the oil pump and front cover side.
d. Tighten the bolts to the specified torque in numerical order as shown.
M6 x 30 mm (1.18 in): No.15,16
M8 x 25 mm (0.98in): No.1,3,5,7, 11,13
M8 x 45 mm (1.77 in): No.2,4,6,8, 10, 14
M8 x 123 mm (4.84in): No.9, 12
2. Install the oil strainer to the oil pan (upper).
3. Install the oil pan (lower).
a. Using a scraper to remove old liquid gasket from mating surfaces.
- Also remove old liquid gasket from mating surface of oil pan (upper).
- Remove old liquid gasket from bolt holes and thread.
CAUTION:
Do not scratch or damage the mating surfaces when cleaning off old liquid gasket.
b. Apply a continuous bead of liquid gasket using Tool as shown.
Tool number: WS39930000 ( - )
Use Genuine RTV Silicone Sealant or equivalent. Refer to Service Manual GI Section.
CAUTION:
Installation should be done within 5 minutes after applying liquid gasket.
c. Tighten the oil pan (lower) bolts to the specified torque in numerical order as shown.
4. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
- Check fluid levels and add as needed if necessary.
- Start the engine and check for fluid leaks of any type.
- Stop engine and wait for 10 minutes.
- Check all fluid levels again.
- Check if steering wheel turns smoothly when it is turned several times fully to the left and right lock positions.
TIMING CHAIN COVER
Exploded View
Removal and Installation
REMOVAL
1. Remove the upper oil pan. Refer to the updated Oil Pan and Oil Strainer procedure above.
2. Remove variable timing control solenoids.
3. Remove intake valve timing control sensors.
4. Remove the crankshaft driven fan pulley and pulley bracket.
5. Remove the drive belt auto tensioner and idler pulley.
6. Remove the intake valve timing control solenoid valve cover (RH) (A) and intake valve timing control solenoid valve cover (LH) (B) as follows:
a. Loosen and remove the bolts in the reverse of order as shown.
b. Cut the liquid gasket and remove the covers using Tool.
Tool number: KVIOIIIIOO (J-37228)
CAUTION:
Do not damage mating surfaces.
7. Obtain compression TDC of No.1 cylinder as follows:
a. Turn the crankshaft pulley clockwise to align the TDC identification notch (without paint mark) with the timing indicator on the front cover.
8. Remove access cover
9. Loosen the crankshaft pulley bolts using Tool to secure the crankshaft.
Tool number: ( - ) J47245
a. Remove the crankshaft pulley from the crankshaft using suitable tool.
- Set the bolts in the two bolt holes [M6 x 1.0 mm (0.04 in)] on the front surface.
NOTE:
The dimension between the centers of the two bolt holes is 61 mm (2.40 in).
10. Remove the front cover.
a. Loosen and remove the bolts in the reverse of order as shown.
b. Cut the liquid gasket and remove the covers using Tool.
Tool number: KVIOIIIIOO (J-37228)
CAUTION:
Do not damage mating surfaces.
11. Remove the front oil seal using suitable tool.
CAUTION:
Do not damage front cover.
12. Remove chain tensioner cover using Tool (if necessary).
Tool number: KVIOIIIIOO (J-37228)
INSTALLATION
1. Install the front oil seal using suitable tool.
CAUTION:
Do not scratch or make burrs on the circumference of the oil seal.
2. Install the chain tensioner cover (if removed).
- Apply liquid gasket as shown.
Use Genuine RTV Silicone Sealant or equivalent.
3. Install the front cover as follows:
a. Install a new O-ring on the cylinder block.
b. Apply liquid gasket as shown.
Use Genuine RTV Silicone Sealant or equivalent.
c. Check again that the timing alignment marks on the timing chain and on each sprocket are aligned. Then install the front cover.
d. Install the bolts in the numerical order as shown.
M6 x 50 mm (1.97 in): No.1,20,25,26,27
M6 x 80 mm (3.15 in): No.4, 5, 7
M6 x 20 mm (0.79 in): All except the above
e. After tightening re-tighten to the specified torque.
CAUTION:
Be sure to wipe off any excessive liquid gasket leaking onto surface mating with oil pan.
4. Install the intake valve timing control solenoid valve cover (RH) (A) and intake valve timing control solenoid valve cover (LH) (B) as follows:
- Cross mark (C) that cannot be seen after assembly
a. Apply liquid gasket (D) as shown.
D: 2.6 - 3.6 mm (0.102 - 0.142 in) dia.
Use Genuine RTV Silicone Sealant or equivalent.
CAUTION:
The start and end of the liquid gasket application should be crossed at a position (C) that cannot be seen after attaching the cover.
b. Install the bolts in the numerical order as shown.
- A: Intake valve timing control solenoid valve cover (RH)
- B: Intake valve timing control solenoid valve cover (LH)
5. Install the crankshaft pulley.
- Install the key of the crankshaft.
- Insert the pulley by lightly tapping it.
CAUTION:
Do not tap pulley on the side surface where the belt is installed (outer circumference).
6. Tighten the crankshaft pulley bolt.
- Lock the crankshaft using suitable tool then tighten the bolt.
- Perform the following steps for angular tightening:
a. Apply engine oil onto the threaded parts of the bolt and seating area.
b. Select the one most visible notch of the four on the bolt flange. Corresponding to the selected notch put a alignment mark (such as paint) on the crankshaft pulley.
Crankshaft pulley bolt torque
Step 1: 93.1 N-m (9.5 kg-m, 69 ft-lb)
Step 2: additional 90° (angle tightening)
7. Rotate the crankshaft pulley in normal direction (clockwise when viewed from engine front) to check for parts interference.
8. Installation of the remaining components is in the reverse of order of removal.
INSPECTION AFTER INSTALLATION
- Before starting the engine check oil/fluid levels including engine coolant and engine oil. If the levels are lower than required quantity fill to the specified level.
- Run engine to check for unusual noise and vibration.
- Warm up engine thoroughly to make sure there is no leakage of any oils/fluids including engine oil and engine coolant.
- Bleed air from passages in lines and hoses such as in cooling system.
- After cooling down the engine again check oil/fluid levels including engine oil and engine coolant. Refill to specified level if necessary.