Question about 1995 Nissan Maxima

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How do you change the water pump on a 1995 nissan maxima?

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Water Pump REMOVAL & INSTALLATION VG30E Engine The water pump is located in the front center of the engine. Fig. 1: The timing belt cover must be removed to fully access the water pump How do you change the water pump on a 1995 nissan - 89613g33.gif
NOTE: Be careful not to spill coolant on the timing belt when performing this procedure.

  1. Drain the cooling system through the drain plug at the bottom of the radiator, and the drain plugs on both sides of the block. CAUTION
    Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.
  2. Remove the upper radiator hose.
  3. Loosen and remove the drive belt(s) from the water pump pulley.
  4. To make the operation easier, remove the timing belt cover. If necessary, remove the thermostat housing and gasket for access.
  5. Remove the water pump-to-engine bolts (noting different lengths) and remove the pump. If the water pump has excessive end play or rough operation, replace it. To install:
  6. Clean the gasket mounting surfaces.
  7. Use a new gasket and coat the gasket with sealant. Reinstall the pump and torque the water pump-to-engine bolts evenly to 12–15 ft. lbs. (16–21 Nm).
  8. If the thermostat housing was removed, install it with a new gasket. Install the cruise control unit if removed.
  9. Install the tensioner, tensioner bracket, air conditioning belt and adjust the belt correctly.
  10. Install the upper radiator hose.
  11. Refill the cooling system. Connect the negative battery cable.
  12. Start the engine, run to normal operating temperature and check for the correct coolant level and for leaks.
VE30DE Engine The water pump is located in the front center of the engine. Fig. 2: Water pump location and torque specifications — VE30DE engine 89613g39.gif
  1. Remove the splash shield on the passenger side of the vehicle.
  2. Drain the cooling system. CAUTION
    Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.
  3. Remove the upper radiator hose to access the upper water pump bolts.
  4. Remove the small hose attached the upper part of the water pump. Fig. 3: Removing the upper radiator hose will allow better access to the upper bolts aHow do you change the water pump on a 1995 nissan - 89613pj7.jpg hose attached to the pump 89613pj7.jpg

  5. Remove the drive belts from the front of the engine.
  6. Remove the tensioner pulley for the air conditioning compressor belt. Fig. 4: Removing the A/CHow do you change the water pump on a 1995 nissan - 89613pk1.jpgner will allow more room to remove the pump once it's unbolted from the engine 89613pk1.jpg
    NOTE: It is recommended that the crankshaft damper be removed to make water pump removal and installation easier.
  7. Remove the water pump pulley-to-water pump bolts, followed by thHow do you change the water pump on a 1995 nissan - 89613pj5.jpg Fig. 5: Use a prybar with a square edge to hold the pulley in place while loosening the bolts; then unscrew them by hand 89613pj5.jpg

  8. Remove the water pump-to-engine bolts. Label each bolt, noting location, and bolt length. WARNING
    Failure to install the bolts of different lengths in their proper locations could result in a cracked timing chain cover, requiring time consuming and costly repair. Be sure to label each bolt and its location.

  9. Fig. 7: Use locking pliers and carefully twist out the timing pointer if pump removal is difficult 89613pk2.jpg
    To install:
  10. Clean the gasket mounting surfaces and grooves.
  11. Using liquid sealant, apply a continuous bead to the gasket mounting surfaces of the water pump.
  12. Install the water pump and torque water pump-to-engine bolts to 12–15 ft. lbs. (16–21 Nm).
  13. Install the water pump pulley and torque the water pump pulley-to-water pump bolts to 4.6–6.1 ft. lbs. (6.3–8.3 Nm).
  14. Install the tensioner pulley for the air conditioning compressor belt.
  15. Install the crankshaft damper, if removed.
  16. Install the timing pointer, if removed.
  17. Install the drive belts from the engine and set the proper tension.
  18. Install the splash shield on the passenger side of the vehicle.
  19. Attach the hoses to the upper water pump and the main inlet pipe.
  20. Refill the cooling system to the appropriate capacity.
  21. Start the engine, run to normal operating temperature and check for the correct coolant level and for leaks.

Posted on Jul 11, 2010

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