CYLINDER BLOCK DISASSEMBLY

CAUTION / NOTICE / HINT

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

Necessary Procedure After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
Battery terminal is disconnected/reconnected	Perform steering sensor zero point calibration	Lane departure alert system (w/ Steering Control)	Click here
	Perform steering sensor zero point calibration	Pre-collision system	Click here
	Memorize steering angle neutral point	Parking assist monitor system	Click here
Replacement of ECM	Vehicle Identification Number (VIN) registration	MIL comes on	Click here
Replacement of ECM	Perform code registration (Immobiliser system)	Engine start function	See Service Bulletin for the registration method.
Replacement of throttle body with motor assembly Cleaning the deposits from the throttle body with motor assembly Replacement of cylinder head sub-assembly Replacement of camshaft (for intake or exhaust camshaft) Replacement of camshaft timing gear assembly Replacement of camshaft timing exhaust gear assembly Replacement of piston or piston ring Replacement of fuel injector assembly (for port injection) Replacement of fuel injector assembly (for direct injection) Replacement of fuel pump assembly (for high pressure side) Replacement of engine coolant temperature sensor Replacement of spark plug Replacement of ignition coil assembly Air leaks from intake system Gas leak from exhaust system is repaired Replacement of knock control sensor	Inspection after repair	Poor idle, etc. Engine start function, etc.	Click here
Replacement of automatic transaxle assembly	Reset Memory Input transaxle compensation code into ECM Perform road test to allow ECM to learn	Large shift shock Deterioration of fuel efficiency	Click here for Initialization Click here for Registration
Replacement of ECM (If possible, read the transaxle compensation code from the previous ECM)	Reset memory*1 Transfer transaxle compensation code Perform road test to allow ECM to learn
Replacement of ECM (If impossible, read the transaxle compensation code from the previous ECM)	Reset memory*1 Reset transaxle compensation code Perform road test to allow ECM to learn
Replacement of ECM	Perform code registration (Immobiliser function)	Wireless door lock control system Smart Entry and Start System (for Entry Function) Smart Entry and Start System (for Start Function) Steering lock function	See Service Bulletin for the registration method.
Suspension, tires, etc. (The vehicle height changes because of suspension or tire replacement)	Rear television camera assembly optical axis (Back camera position setting)	Parking assist monitor system	Click here for Initialization Click here for Calibration
	Perform headlight ECU sub-assembly LH initialization	Lighting system (EXT)	Click here
Front wheel alignment adjustment	Perform system variant learning and acceleration sensor zero point calibration.	VSC disabled or malfunctioning DTCs are output Slip indicator light illuminated ABS warning light illuminated	Click here

*1: When the ECM is replaced with a new one, reset memory is unnecessary.

PROCEDURE

REMOVE CYLINDER BLOCK WATER JACKET SPACER
1. Remove the cylinder block water jacket spacer and cylinder block water jacket spacer LH from the cylinder block sub-assembly.
REMOVE PISTON SUB-ASSEMBLY WITH CONNECTING ROD
1. Check that the matchmarks on the connecting rod sub-assembly and connecting rod cap are aligned.
  
  Tech Tips
  
  The matchmarks on the connecting rod sub-assembly and connecting rod cap are guides for correct reassembly.
2. Front of Engine
  
  Remove the 2 connecting rod bolts.
3. Using the 2 removed connecting rod bolts, remove the connecting rod cap and lower connecting rod bearing by wiggling the connecting rod cap right and left.
  
  Tech Tips
  
  Keep the lower connecting rod bearing installed to the connecting rod cap.
4. *a Ridge Reamer
  
  Using a ridge reamer, remove all of the carbon from the top of the cylinder.
5. Push the piston, connecting rod sub-assembly and upper connecting rod bearing through the top of the cylinder block sub-assembly.
  Tech Tips
  - Keep the connecting rod bearing, connecting rod sub-assembly and connecting rod cap together.
  - Arrange the removed parts in such a way that they can be reinstalled to their original locations.
REMOVE CONNECTING ROD BEARING
1. Remove the connecting rod bearings from the connecting rod sub-assembly and connecting rod cap.
  
  Tech Tips
  
  Arrange the removed parts in such a way that they can be reinstalled to their original locations.
REMOVE PISTON RING SET
1. *a Piston Ring Expander
  
  Using a piston ring expander, remove the No. 1 compression ring and No. 2 compression ring.
2. Remove the oil ring expander and 2 side rails by hand.
  
  Tech Tips
  
  Arrange the removed parts in such a way that they can be reinstalled to their original locations.
REMOVE PISTON
1. Check the fitting condition between the piston and piston pin.
  1. Try to move the piston back and forth on the piston pin.
    
    Tech Tips
    
    If abnormal movement is felt, replace the piston and piston pin as a set.
2. Remove the connecting rod sub-assembly from the piston.
  1. Using a screwdriver, pry out the piston pin hole snap ring (front side).
    
    Note
    
    Do not remove the piston pin hole snap ring (rear side) unless it has to be replaced.
    
    Be careful not to damage the piston when removing the piston pin hole snap ring (rear side).
  2. Gradually heat the piston to approximately 80°C (176°F).
    
    CAUTION:
    
    Be sure to wear protective gloves.
  3. Using a brass bar and a hammer, lightly tap out the piston pin and remove the connecting rod sub-assembly.
    
    Tech Tips
    
    The piston and piston pin are a matched set.
    
    Arrange the removed parts in such a way that they can be reinstalled to their original locations.
3. Using a gasket scraper, remove any carbon from the piston top.
  
  Note
  
  Be careful not to scratch the piston.
4. Using a groove cleaning tool or a broken ring, clean the piston ring grooves.
5. Using solvent and a brush, thoroughly clean the piston.
  
  Note
  
  Do not use a wire brush.

REMOVE CRANKSHAFT

Uniformly loosen and remove the 8 crankshaft bearing cap set bolts and 8 seal washers in several steps in the order shown in the illustration.
Uniformly loosen the 16 crankshaft bearing cap set bolts in several steps in the order shown in the illustration.

*1	Cylinder Block Sub-assembly
*2	Crankshaft Bearing Cap
*a	Protective Tape
*b	Contact Surface

Using a screwdriver with its tip wrapped with protective tape, pry out the crankshaft bearing caps. Remove the 4 crankshaft bearing caps and 4 lower crankshaft bearings as a set.

Note

Push up the crankshaft bearing cap slowly and evenly, alternating between the right and left side so that the crankshaft bearing cap can be removed.
Be careful not to damage the contact surfaces of the cylinder block sub-assembly and the crankshaft bearing cap.

Remove the crankshaft.

REMOVE CRANKSHAFT BEARING
1. Remove the upper crankshaft bearings and lower crankshaft bearings.
  
  Tech Tips
  
  Arrange the removed parts in such a way that they can be reinstalled to their original locations.
REMOVE CRANKSHAFT THRUST WASHER SET
1. Remove the crankshaft thrust washer set from the cylinder block sub-assembly.
REMOVE NO. 1 OIL NOZZLE SUB-ASSEMBLY
1. Using a 5 mm hexagon socket wrench, remove the 3 bolts and 3 No. 1 oil nozzle sub-assemblies.
2. Check the 3 No. 1 oil nozzle sub-assemblies for damage or clogging.
  
  Tech Tips
  
  If there is damage or clogs, replace the No. 1 oil nozzle sub-assembly.