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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - Overhaul - SKYACTIV-G - 2.5L >> Timing Chain Disassembly >> Oil Pump Chain Disassembly Note

Oil Pump Chain Disassembly Note

  1. Hold the crankshaft using the SST  .
  2. Slightly loosen the balancer shaft sprocket and oil pump driven sprocket Bolts.
    NOTE:
    • At this stage, only loosen the Bolts, do not remove them. Remove the bolts after removing the oil pump chain tensioner.
    Fig 1: Identifying Balancer Shaft Sprocket And Oil Pump Driven Sprocket Bolts
    G09757178Courtesy of MAZDA MOTORS CORP.
  3. Set a cloth wrapped flathead screwdriver in the gap between the oil pump drive sprocket and the oil pump chain as shown in the figure.
    Fig 2: Setting Screwdriver In Gap Between Oil Pump Drive Sprocket And Oil Pump Chain
    G09757179Courtesy of MAZDA MOTORS CORP.
  4. Move the screwdriver in the direction of the arrow and press the oil pump chain, and then press on the plunger of the oil pump chain tensioner.
    Fig 3: Pressing Plunger Of Oil Pump Chain Tensioner
    G09757180Courtesy of MAZDA MOTORS CORP.
  5. Insert a wire with an approx. diameter of 1.4 mm {0.055 in} or a paper clip into the body hole of the oil pump chain tensioner with the plunger pressed.
    NOTE:
    • The wire or paper clip secures the plunger, and the tension can be released.
  6. Remove the oil pump chain tensioner.
  7. Remove the oil pump chain and balancer shaft sprocket as a single unit.
  8. Remove the oil pump driven sprocket.
    Fig 4: Identifying Wire And Paper Clip
    G09757181Courtesy of MAZDA MOTORS CORP.
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