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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (Engine Mechanical - 2.5L - (Hybrid)) >> In-Vehicle Repair >> Engine Front Cover >> Removal

Engine Front Cover: Removal

WARNING: This page is about a different variant/trim than selected.
NOTE: Do not loosen or remove the crankshaft pulley bolt without first installing the special tools as instructed in this procedure. The crankshaft pulley and the crankshaft timing sprocket are not keyed to the crankshaft. The crankshaft, the crankshaft sprocket and the pulley are fitted together by friction, using diamond washers between the flange faces on each part. For that reason, the crankshaft sprocket is also unfastened if the pulley bolt is loosened. Before any repair requiring loosening or removal of the crankshaft pulley bolt, the crankshaft and camshafts must be locked in place by the special service tools, otherwise severe engine damage can occur.
NOTE: During engine repair procedures, cleanliness is extremely important. Any foreign material (including any material created while cleaning gasket surfaces) that enters the oil passages, coolant passages or the oil pan can cause engine failure.
  1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING & LIFTING .
  2. Remove the accessory drive belt and tensioner. For additional information, refer to ACCESSORY DRIVE - HYBRID .
  3. Remove the crankshaft pulley. For additional information refer to CRANKSHAFT PULLEY .
  4. Remove the engine mount. For additional information, refer to ENGINE MOUNT .
  5. NOTE: Use care not to damage the engine front cover or the crankshaft when removing the seal.
    Fig 1: Removing Crankshaft Front Seal
    G06094867Courtesy of FORD MOTOR CO.
  6. Using the Oil Seal Remover, remove the crankshaft front seal.
  7. Remove the 3 bolts and the coolant pump pulley.
  8. Disconnect the Crankshaft Position (CKP) sensor electrical connector.
  9. Remove the 2 bolts and the CKP sensor.
    Fig 2: Locating Bolts And CKP Sensor
    G06096795Courtesy of FORD MOTOR CO.
  10. Remove the bolts and the engine front cover.
    Fig 3: Locating Engine Front Cover Bolts
    G06094884Courtesy of FORD MOTOR CO.