Disassembly And Assembly: Disassembly

NOTE:

The following procedures explain how to disassemble the engine with the engine stand fastened to the bell housing. Some steps may be different if using a different type of engine stand.

Remove cylinder head. Refer to EXPLODED VIEW .
Remove knock sensor.
CAUTION:
Carefully handle knock sensor avoiding shocks.

Remove the crankshaft position sensor cover (3), and then crankshaft position sensor (POS) (2).

Fig 1: Crankshaft Position Sensor Cover (3), And Crankshaft Position Sensor (POS) (2)

Courtesy of NISSAN NORTH AMERICA, INC.

(1)	O - ring
(4)	Cylinder block
	: Engine front

CAUTION:

Avoid impacts such as a dropping.
Do not disassemble.
Keep sensor away from metal particles.
Do not place the sensor in a location where it is exposed to magnetism.
Do not reuse O-ring.

Remove oil pan (upper and lower). Refer to EXPLODED VIEW .
Remove piston and connecting rod assembly:
- Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer to INSPECTION .
1. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
2. Remove connecting rod cap.
3. Using a hammer handle or similar tool, push piston and connecting rod assembly out through the cylinder head side.
  
  Fig 2: Removing Piston And Connecting Rod Assembly
  Courtesy of NISSAN NORTH AMERICA, INC.
  CAUTION:
  - Be careful not to damage mating surface with connecting rod cap.
  - Be careful not to damage the cylinder wall or crankshaft pin.
Remove connecting rod bearings.
CAUTION:
Identify original positions for installation, and store the bearings without mixing them up.
Remove piston rings from piston.
- Before removing piston rings, check the piston ring side clearance. Refer to INSPECTION .
- Use a suitable tool) (A) as shown.
  
  Fig 3: Removing Piston Rings
  Courtesy of NISSAN NORTH AMERICA, INC.
  CAUTION:
  - When removing piston rings, be careful not to damage the piston.
  - Be careful not to damage piston rings by expanding them excessively.

Remove piston from connecting rod.

Use a Tools (A, B, C) and a press to remove the piston pin.

Fig 4: Removing Piston From Connecting Rod

Courtesy of NISSAN NORTH AMERICA, INC.

Tool Number (A)	: KV10109730
(B)	: KV10110310
(C)	: ST13030020

CAUTION:

Do not damage the piston and connecting rod.
Do not reuse piston and piston pin after removing piston pin from connecting rod.
The connecting rod is reusable.

NOTE:

The joint between the connecting rod and the piston pin is a press fit.

Remove the main bearing cap.
- Measure crankshaft end play before loosening main bearing cap bolts. Refer to INSPECTION .
1. Loosen and remove bolts in several steps in reverse of the numerical order as shown.
  
  Fig 5: Main Bearing Cap (Reverse For Loosening)
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  : Engine front
  
  NOTE:
  When removing or installing signal plate, use socket (size T40).
2. Remove the main bearing cap from the cylinder block while tapping lightly with a plastic hammer.
Remove crankshaft (2).

Fig 6: Identifying Signal Plate And Crankshaft
Courtesy of NISSAN NORTH AMERICA, INC.
CAUTION:
- Be careful not damage or deform signal plate (1) mounted on crankshaft.
- When setting crankshaft on a flat floor surface, use a block of wood to avoid interference between signal plate and the floor surface.
- Do not remove signal plate unless it is necessary to do so.
NOTE:
When removing or installing signal plate, use socket (size T40).
Pull rear oil seal out from rear end of crankshaft.
Remove main bearing (upper and lower) and thrust bearings from cylinder block and main bearing caps.
CAUTION:
Identify original installation positions, and store the bearings without mixing them up.
Remove oil jets.
CAUTION:
Insert the dowel pin of oil jet into the cylinder block dowel pin hole to loosen the bolt.