DISASSEMBLY ■ CAUTION ■ Never remove/install liquid gasket-applied oil pans (lower and upper) more than once. Replace them with new ones for a second or further removal/installation.

1.Remove oil pan (lower).

- Loosen mounting bolts in the reverse order as shown in the figure with power tool.

  | : Engine front

- Insert the seal cutter [SST: KV10111100 (J-37228)] between oil pan (upper) and oil pan (lower).

■ CAUTION ■
Never allow the mounting surface of oil pan (upper) to get scratched because it is surface-treated.
NOTE：
The figure shows downward gaze.

2.Remove oil strainer.

3.Remove front timing chain case, timing chain (primary) and oil pump drive chain. Refer to Exploded View (GT-R certified NISSAN dealer).

4.Remove oil pump. Refer to Exploded View (GT-R certified NISSAN dealer).

5.Remove oil pan (upper) as follows:

(1)Loosen mounting bolts in the reverse order as shown in the figure with power tool.

| : Engine front

(2)Pry off the notch (B) located at the rear of oil pan (upper) (2) with a suitable tool (A) to separate the liquid gasket.

1 | : Lower cylinder block
| : Engine front

■ CAUTION ■

- Never allow the mounting surface of oil pan (upper) to get scratched because it is surface-treated.
- Never use the seal cutter.

6.Remove O-rings (2).

1 | : Rear timing chain case
3 | : Lower cylinder block
| : Engine front

7.Remove axle pipe, if necessary.

- Remove axle pipe from oil pan (upper) using a suitable drift (A) [outer diameter: φ37 mm (1.46 in)].

ASSEMBLY

1.Install axle pipe (3) to oil pan (upper), if removed.

- Lubricate O-ring groove of axle pipe, O-rings, and O-ring joint of oil pan with new engine oil.

  Unit: mm (in)
  Items | O-ring inner diameter
  Front final drive side (right side) O-ring (2) | φ31.4 (1.236)
  Axle pipe flange side (left side) O-ring (1) | φ33.6 (1.323)

- Install axle pipe (1) to oil pan (upper) from axle pipe flange side (left side) using a suitable drift (A) [outer diameter: 43 to 57 mm (1.69 to 2.24 in)].
  ■ CAUTION ■
  Insert it with care to prevent O-ring from sliding.

2.Install oil pan (upper) as follows:

(1) Apply gasket remover (commercial service tool) on old liquid gasket adhered to the oil pan (upper).

(2)Remove gasket with a resin gasket scraper [SST: KV10119100 (J-49360) (A).
■ CAUTION ■
The mounting surface of oil pan (upper) is surface-treated. Be sure to use a resin gasket scraper so as not to damage the surface-treated.

(3)Install new O-rings (2) on the bottom of lower cylinder block (3).

1 | : Rear timing chain case
| : Engine front

(4)Apply a continuous bead of liquid gasket with the cartridge gun (commercial service tool) to the oil pan (upper) as shown in the figure.

a | : 1.5 mm (0.059 in)
b | : φ4.5 mm (0.177 in)
| : Engine front

Use Genuine RTV Silicone Sealant or equivalent. Refer to Recommended Chemical Products and Sealants.
■ CAUTION ■

- For bolt holes with marks (3 locations), apply liquid gasket outside the holes.
- Attaching should be done within 5 minutes after coating.

(5)Tighten mounting bolts in numerical order as shown in the figure.

| : Engine front

■ CAUTION ■
Install avoiding misalignment of O-rings.

- There are four types of mounting bolts. Refer to the following for locating bolts.

  M8×30 mm (1.18 in) | : 5, 6, 13, 14
  M8×40 mm (1.57 in) | : 10
  M8×60 mm (2.36 in) | : 1, 2, 3, 4, 7, 8, 11, 12
  M8×75 mm (2.95 in) | : 9

(6)After installing oil pan (upper) (2), check the front timing chain case mounting surface.

1 | : Rear timing chain case

Standard | : Less than 0.14 mm (0.006 in)

- If not within the standard, repeat the installation procedure.

3.Install oil pump. Refer to Exploded View (GT-R certified NISSAN dealer).

4.Install front timing chain case, timing chain (primary) and oil pump drive chain. Refer to Exploded View (GT-R certified NISSAN dealer).

5.Install oil strainer.

6.Install oil pan (lower) as follows:

(1)Apply a continuous bead of liquid gasket with the cartridge gun (commercial service tool) to the oil pan (lower) as shown in the figure.

a | : 8.5 mm (0.335 in)
b | : φ4.5 mm (0.177 in)

Use Genuine RTV Silicone Sealant or equivalent. Refer to Recommended Chemical Products and Sealants.
■ CAUTION ■
Attaching should be done within 5 minutes after coating.

(2)Tighten mounting bolts in numerical order as shown in the figure.

| : Engine front

NOTE：
The figure shows downward gaze.

7.Install oil pan drain plug.

- Refer to the figure of components of former page for installation direction of drain plug washer. Refer to Exploded View (GT-R certified NISSAN dealer).

8.Install in the reverse order of removal after this step.
NOTE：
At least 30 minutes after oil pan is installed, pour engine oil.