HLA Installation Note

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

Perform HLA air bleeding using the following procedure.
1. Put the HLA in a container filled with engine oil.
  CAUTION:
  - Do not insert the round bar firmly because the check ball spring force is extremely weak.
2. While lightly pressing the check ball using a round bar (approx. 1.0 mm {0.039 in} diameter), bleed air by moving the plunger up and down.
  
  Fig 1: Pressing Check Ball Using Round Bar
  Courtesy of MAZDA MOTORS CORP.
3. Press the end of the plunger in the oil and verify that there is no rebounding feel.
  - If rebounding feel cannot be eliminated, replace the HLA.
Visually inspect the HLA surface where it contacts the rocker arm for wear or damage.

Fig 2: Identifying Rocker Arm Contact Surface
Courtesy of MAZDA MOTORS CORP.
- If there is any malfunction, replace the HLA.
Assemble the HLAs to their original positions.