LEMON Manuals: Even more car manuals for everyone
Home >> Mazda >> 2021 >> CX-30 Turbo Premium >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (Engine Mechanical System (VIN L)) >> Electric Variable Valve Timing Actuator, Hydraulic Variable Valve Timing Actuator Removal/Installation >> Hydraulic Variable Valve Timing Actuator and Exhaust Camshaft Component Removal Note

Hydraulic Variable Valve Timing Actuator and Exhaust Camshaft Component Removal 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.
CAUTION:
  • Keep the timing chain pulled up during and after the work in which it has been set aside from the sprocket. If the chain falls down, it may disengage from the sprocket on the crankshaft side and deviate, leading to valve timing deviation.
  • After servicing, always verify the valve timing.
  1. Leave the timing chain as it is, which was suspended after electric variable valve timing actuator removal.
  2. Temporarily install the cylinder head cover bolt to the position shown in the illustration to use it for suspending the timing chain.
    G13556391Courtesy of MAZDA MOTORS CORP.
  3. Loosen the exhaust-side camshaft cap bolts in two or three passes in the order shown in the illustration, and remove the camshaft caps.
    Fig 1: Exhaust-Side Camshaft Caps Bolts Loosening Sequence
    G11547063Courtesy of MAZDA MOTORS CORP.
  4. While setting the timing chain aside, remove the hydraulic variable valve timing actuator and the exhaust camshaft as a single unit.
    G11436563Courtesy of MAZDA MOTORS CORP.
  5. Pull up the timing chain and suspend it using a rope as shown in the illustration
    G11436564Courtesy of MAZDA MOTORS CORP.