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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Mechanical - 4.6L (5 Of 5)) >> Off-Vehicle Repair Instructions (3 Of 3) >> Water Crossover Installation

Water Crossover Installation

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Idebtifying Water Pump Housing & Bolts
    GM1564216Courtesy of GENERAL MOTORS CORP.
  1. With the water crossover on the bench, install all eight crossover bolts in locations as shown.
    • Bolt (1) length 40.7 mm (1.6024 in)
    • Bolts (2) length 92.0 mm (3.6220 in)
    • Bolts (3) length 109.0 mm (4.2913 in)
    • Bolts (4) length 115.0 mm (4.5276 in)
    2. Fig 2: Removing/Installing Water Pump Housing Gaskets & Bolts
    GM1564217Courtesy of GENERAL MOTORS CORP.
  2. Slide the upper and lower water crossover gaskets onto the bolts with the crossover still on the bench.
    3. Fig 3: View Of Water Pump Housing
    GM1564115Courtesy of GENERAL MOTORS CORP.
  3. Place the water crossover in position and hand start the bolts to hold the crossover in place.
    4. Fig 4: Identifying Water Crossover Bolt Tightening Sequence
    GM1564219Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  4. Tighten the water crossover bolts in sequence (1-8).

    Tighten:  Tighten all water crossover bolts to 25 N.m (18 lb ft).

    5. Fig 5: Identifying Water Pump Drive Belt Tensioner
    GM1564113Courtesy of GENERAL MOTORS CORP.
  5. Place the water pump drive belt tensioner in position on the water pump housing.
  6. Install the water pump drive belt tensioner bolts.

    Tighten:  Tighten the drive belt tensioner bolts to 10 N.m (89 lb in).

    7. Fig 6: Rotating Water Pump Drive Belt Tensioner
    GM1564112Courtesy of GENERAL MOTORS CORP.
  7. Feed the water pump drive belt around the water pump pulley and the water pump drive belt tensioner.
  8. Compress the drive belt tensioner. Feed the drive belt around the drive pulley.
  9. Check the drive belt for proper seating in all the pulley grooves.
    10. Fig 7: Identifying Water Pump Drive Belt Shield Bolt & Nuts
    GM1564111Courtesy of GENERAL MOTORS CORP.
  10. Place the water pump drive belt shield in position.
  11. Hand start the water pump drive belt shield nuts on the studs.
  12. Hand start the water pump drive belt shield bolt.
  13. Tighten the water pump shield nuts and bolt.

    Tighten: 

    1. Tighten the water pump shield nuts to 10 N.m (89 lb in).
    2. Tighten the water pump shield bolt to 10 N.m (89 lb in).

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