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Water Crossover Installation

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
    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: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
  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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