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Home >> Mazda >> 2021 >> CX-30 Turbo Premium >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (Engine Mechanical System (VIN L)) >> Hydraulic Lash Adjuster (HLA) Removal/Installation >> HLA Installation Note

HLA Installation Note

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
  1. 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.
      G11436748Courtesy 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.
  2. Visually inspect the HLA surface where it contacts the rocker arm for wear or damage.
    • If there is any malfunction, replace the HLA.
    G11436749Courtesy of MAZDA MOTORS CORP.
  3. Assemble the HLAs to their original positions.
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