Nissan Pick-ups and Pathfinder 1989-1995

Oil Pan

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REMOVAL & INSTALLATION



Z24i Engine
  1. Remove the engine under cover and drain the engine oil.
  2.  


CAUTION
The EPA warns that prolonged contact with used engine oil may cause a number of skin disorders, including cancer! You should make every effort to minimize your exposure to used engine oil. Protective gloves should be worn when changing the oil. Wash your hands and any other exposed skin areas as soon as possible after exposure to used engine oil. Soap and water, or waterless hand cleaner should be used.

  1. On 2wd models, remove the front crossmember.
  2.  
  3. On 4wd models:
    1. Remove the bolt from the front differential carrier member on 4wd models.
    2.  
    3. Position a floor jack under the front differential carrier and remove the mounting bolts.
    4.  
    5. Remove the transmission-to-rear engine mount bracket nuts.
    6.  
    7. Remove the engine mount nuts and bolts.
    8.  
    9. Attach an engine hoist and raise the engine slightly.
    10.  

  4.  
  5. Remove the oil pan mounting bolts. Insert a seal cutter tool between the cylinder block and the oil pan, then tap it around the circumference of the pan with a hammer. Remove the oil pan.
  6.  

Be careful not to drive the seal cutter into the oil pump or rear oil seal retainer as you will damage the aluminum mating surface.

To install:
  1. Remove all traces of gasket material from the pan and block mating surfaces.
  2.  
  3. Apply a continuous 0.14-0.18 in. (3.5-4.5mm) thick bead of sealant to the oil pan mating surface. Be sure to run the sealant bead to the inside of the bolt holes where there is no groove.
  4.  
  5. Install the pan and tighten all bolts to 4-5 ft. lbs. (6-7 Nm).
  6.  
  7. On 2wd models, install the crossmember.
  8.  
  9. On 4wd models, lower the engine and fasten the engine mount nuts/bolts. Then, install the transmission-to-rear engine mount bracket nuts and differential carrier mounting bolts. Remove the floor jack.
  10.  
  11. Wait at least 30 minutes, then refill the engine with oil. Run the engine until it reaches normal operating temperature, then check for leaks.
  12.  
  13. Once you are sure there are no leaks, install the engine under cover.
  14.  

KA24E Engine

See Figure 1

  1. Raise the front of the vehicle and support it with safety stands.
  2.  
  3. Drain the engine oil into a suitable container.
  4.  


CAUTION
The EPA warns that prolonged contact with used engine oil may cause a number of skin disorders, including cancer! You should make every effort to minimize your exposure to used engine oil. Protective gloves should be worn when changing the oil. Wash your hands and any other exposed skin areas as soon as possible after exposure to used engine oil. Soap and water, or waterless hand cleaner, should be used.

  1. Remove the front stabilizer bar mounting nuts and bolts from the side member.
  2.  



Click image to see an enlarged view

Fig. Fig. 1: Oil pan tightening sequence-KA24E engine

  1. Carefully position a floor jack and a piece of wood under the engine, then raise the engine in its mounts.
  2.  
  3. Loosen the oil pan bolts in the illustrated sequence. Insert a seal cutter tool between the cylinder block and oil pan, then tap it around the circumference of the pan with a hammer. Remove the oil pan, pulling it out from the front side.
  4.  

Be careful not to drive the seal cutter into the oil pump or rear oil seal retainer, as this would damage the aluminum mating surface.

To install:
  1. Remove all traces of gasket material from the pan and block mating surfaces.
  2.  
  3. Apply a continuous 0.14-0.18 in. (3.5-4.5mm) thick bead of sealant to the oil pan mating surface. Be sure to run the sealant bead to the inside of the bolt holes where there is no groove.
  4.  
  5. Install the pan and tighten all bolts to 4-5 ft. lbs. (6-7 Nm) in the reverse order of removal.
  6.  
  7. Lower the engine to its normal position, then remove the floor jack and piece of wood.
  8.  
  9. Attach the front stabilizer bar mounting nuts and bolts to the side member.
  10.  
  11. Remove the jackstands and lower the front of the vehicle.
  12.  
  13. Wait at least 30 minutes, then refill the engine with oil. Run the engine until it reaches normal operating temperature, then check for leaks.
  14.  

VG30i and VG30E Engines

See Figures 2, 3, 4, 5, 6 and 7

  1. Remove the engine under cover and drain the engine oil.
  2.  


CAUTION
The EPA warns that prolonged contact with used engine oil may cause a number of skin disorders, including cancer! You should make every effort to minimize your exposure to used engine oil. Protective gloves should be worn when changing the oil. Wash your hands and any other exposed skin areas as soon as possible after exposure to used engine oil. Soap and water, or waterless hand cleaner should be used.

  1. On 2wd models, remove the stabilizer bar bracket bolts, then remove the front crossmember.
  2.  
  3. On 4wd models, remove the front driveshaft and disconnect the halfshafts at the transfer case. Position a floor jack under the front differential carrier and remove the mounting bolts.
  4.  
  5. Remove the idler arm.
  6.  
  7. Remove the starter motor.
  8.  
  9. On 4wd models, remove the transmission-to-rear engine mount bracket nuts. Then, remove the engine mount nuts and bolts.
  10.  
  11. Remove the engine gussets.
  12.  
  13. On 4wd models, attach an engine hoist and raise the engine slightly.
  14.  
  15. Remove the oil pan mounting bolts in the order shown. Insert a seal cutter tool between the cylinder block and the oil pan, then tap it around the circumference of the pan with a hammer. Remove the oil pan.
  16.  

Be careful not to drive the seal cutter into the oil pump or rear oil seal retainer as this would damage the aluminum mating surface.

To install:
  1. Remove all traces of gasket material from the pan and block mating surfaces.
  2.  



Click image to see an enlarged view

Fig. Fig. 2: Oil pan loosening sequence-VG30i and VG30E engines



Click image to see an enlarged view

Fig. Fig. 3: Carefully install the seal cutter like this



Click image to see an enlarged view

Fig. Fig. 4: Slide the cutter by tapping its side with a hammer



Click image to see an enlarged view

Fig. Fig. 5: Apply liquid sealer like this



Click image to see an enlarged view

Fig. Fig. 6: Removing the oil pan retaining bolts evenly



Click image to see an enlarged view

Fig. Fig. 7: Removing the oil pan from the engine

  1. Apply sealant to the oil pump and oil seal retainer gasket.
  2.  
  3. Apply a continuous 0.14-0.18 in. (3.5-4.5mm) thick bead of sealant to the oil pan mating surface. Be sure to run the sealant bead to the inside of the bolt holes where there is no groove.
  4.  
  5. Install the pan and tighten all bolts to 4-5 ft. lbs. (6-7 Nm). Lower the engine assembly.
  6.  
  7. Install the engine gussets.
  8.  
  9. On 4wd models, install the engine mounts nuts and bolts. Install the transmission-to-rear engine mount bracket nuts.
  10.  
  11. Install the starter motor and engage all electrical connections.
  12.  
  13. Install the idler arm with a new cotter pin.
  14.  
  15. On 2wd models, install the front crossmember and stabilizer bar bracket bolts (reposition stabilizer bar if necessary).
  16.  
  17. On 4wd models, position a floor jack under the front differential carrier and install the mounting bolts. Reconnect the halfshafts at the transfer case. Install the front driveshaft. Remember to remove the floor jack.
  18.  
  19. Wait at least 30 minutes and then refill the engine with oil. Run the engine until it reaches normal operating temperature and then check for leaks.
  20.  

 
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