Hydraulic Lash Adjuster (HLA) Removal/Installation: Notes
WARNING: This page is about a different car, the 2016 Mazda CX-3. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
- A hot engine can cause severe burns. Turn off the engine and wait until it is cool before servicing.
CAUTION:
- If the camshaft is rotated with the timing chain removed and the piston at the top dead center position, the valve may contact the piston and the engine could be damaged. When rotating the camshaft with the timing chain removed, rotate it after lowering the piston from the top dead center position.
- When rotating the camshaft using a wrench on the cast hexagon, the wrench may contact the rocker arm and damage the rocker arm. To prevent damage to the rocker arm when holding the camshaft on the cast hexagon, use a wrench on the rear side of the engine as shown in the figure to secure a clearance between the cam.
NOTE:
- Width at the cast hexagon of the camshaft is 22-24 mm {0.87-0.94 in} .
- Disconnect the negative battery cable. (Refer to NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
- Remove the plug hole plate. (Refer to PLUG HOLE PLATE REMOVAL/INSTALLATION .)
- Remove the ignition coil/ion sensors. (Refer to IGNITION COIL/ION SENSOR REMOVAL/INSTALLATION .)
- Remove the cylinder head cover. (Refer to TIMING CHAIN REMOVAL/INSTALLATION .)
- Remove the electric variable valve timing motor/driver. (Refer to ELECTRIC VARIABLE VALVE TIMING MOTOR/DRIVER REMOVAL/INSTALLATION .)
- Remove the vacuum pump. (Refer to VACUUM PUMP REMOVAL/INSTALLATION .)
- Remove the high pressure fuel pump and rear housing. (Refer to HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION .)
- Remove in the order indicated in the table.
- Install in the reverse order of removal.
- Start the engine and inspect the following:
- Ignition timing, idle speed and idle mixture. (Refer to ENGINE TUNE-UP .)COMPONENT DESCRIPTION
1 Oil shower pipe
(See Oil Shower Pipe Installation Note .)2 Timing chain
(See Timing Chain Removal Note .)
(See Timing Chain Installation Note .)3 Chain guide (No. 1) 4 Electric variable valve timing actuator
(See Electric Variable Valve Timing Actuator Removal Note .)
(See Electric Variable Valve Timing Actuator Installation Note .)5 OCV 6 Camshaft
(See Camshaft Removal Note .)
(See Camshaft Installation Note .)7 OCV oil filter 8 Rocker arm
(See Rocker Arm Removal Note .)
(See Rocker Arm Installation Note .)9 HLA
(See HLA Removal Note .)
(See HLA Installation Note .)
- Ignition timing, idle speed and idle mixture. (Refer to ENGINE TUNE-UP .)