Toyota Pick-ups, Land Cruiser, and 4 Runner 1997-00

Oil Pump

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REMOVAL & INSTALLATION



2RZ-FE and 3RZ-FE Engines

The oil pump assembly is mounted in the timing chain cover. To properly service the oil pump, the timing chain cover must be removed from the cylinder block.

This is a difficult and lengthy procedure requiring removal of many components including the front differential assembly and the cylinder head, which also requires removal of the timing chain assembly. This procedure can also be performed with the engine out of the vehicle, which may be an option, depending on the equipment and facilities available. If other heavy engine work is required (for example, a failed oil pump may have caused crankshaft and bearing damage or other engine damage) it may just be easier to remove the engine as an assembly and perform the work on a suitable engine stand.

The following procedure is based on Toyota's in-frame procedure.



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Fig. Numerous engine components must be removed to service the oil pump2RZ-FE and 3RZ-FE engines



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Fig. The oil pump uses two rotary gears turning inside a bore in the timing chain cover2RZ-FE and 3RZ-FE engines



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Fig. Top: Removing and installing the crankshaft front oil seal with the pump cover off the engine; Bottom: Removing and installing the crankshaft front oil seal with the pump cover still on the engine2RZ-FE and 3RZ-FE Engines

  1. Disconnect the negative battery cable.
  2.  
  3. Drain the engine oil and cooling system.
  4.  
  5. Raise and safely support the vehicle.
  6.  
  7. Remove the engine undercover.
  8.  
  9. If equipped with 4WD, remove the front differential and halfshaft assembly.
  10.  
  11. On California vehicles with 3RZ-FE engine, remove the two bolts and disconnect the air pipe.
  12.  
  13. Disconnect the upper hose from the radiator.
  14.  
  15. Remove the oil dipstick guide by removing the bolt.
  16.  
  17. If equipped with power steering, remove the drive belt by loosening the lock bolt and adjusting bolt.
  18.  
  19. Remove the fan shrouds.
  20.  
  21. If equipped with A/C, loosen the idler pulley nut and adjusting bolt, then remove the drive belt from the engine.
  22.  
  23. Remove the alternator drive belt, fan (with fan clutch), water pump pulley, and the fan shroud as follows:
    1. Loosen the water pump pulley mounting nuts.
    2.  
    3. Loosen the lock, pivot and adjusting bolts for the alternator and remove the alternator drive belt from the engine.
    4.  
    5. Remove the four water pump pulley mounting nuts.
    6.  
    7. Remove the fan (with fan clutch) and the water pump pulley.
    8.  

  24.  
  25. Remove the cylinder head from the engine.
  26.  
  27. If equipped with A/C, disconnect the compressor and bracket as follows:
    1. Remove the four mounting bolts and disconnect the compressor from the bracket. Do NOT disconnect the A/C pressure lines from the compressor. Suspend the compressor away from the engine.
    2.  
    3. Remove the A/C compressor bracket by removing the four bolts.
    4.  

  28.  
  29. Remove the alternator, adjusting bar and bracket as follows:
    1. Loosen the lock bolt, pivot bolt, nut and adjusting bolt at the alternator.
    2.  
    3. After loosening the adjusting bolt, remove the alternator drive belt from the engine.
    4.  
    5. Disconnect the alternator wiring.
    6.  
    7. Remove the nut, and then disconnect the alternator wire.
    8.  
    9. Disconnect the wire harness with the clip.
    10.  
    11. Remove the lock bolt, pivot bolt, nut, and the alternator from the engine.
    12.  
    13. Unbolt and remove the adjusting bar.
    14.  
    15. Unbolt and remove the bracket.
    16.  

  30.  
  31. Unbolt and remove the crankshaft position sensor.
  32.  
  33. If equipped with 2WD, remove the stiffener plates by removing the eight bolts.
  34.  
  35. Remove the flywheel housing undercover and dust seal.
  36.  
  37. Remove the oil pan by removing the 16 mounting bolts and two nuts.
  38.  

Be careful not to damage the flanges of the oil pan and cylinder block.

  1. Remove the two bolts, two nuts, oil strainer, and gasket.
  2.  
  3. Remove the crankshaft pulley:
    1. If equipped with A/C, remove the No. 2 and No. 3 crankshaft pulleys by removing the four bolts.
    2.  
    3. Using SST 0921354015 and 0933000021 or equivalents, remove the crankshaft pulley bolts.
    4.  
    5. Remove the crankshaft pulley.
    6.  

  4.  
  5. Remove the timing chain cover as follows:
    1. Remove the two water bypass pipe mounting nuts.
    2.  
    3. Remove the two timing chain cover mounting bolts.
    4.  
    5. Remove the nine mounting bolts and two mounting nuts from the timing chain cover.
    6.  
    7. Using a rubber hammer, loosen the chain cover, timing chain cover and three gaskets.
    8.  

  6.  
  7. Disassemble the oil pump from the front cover, pump cover, drive rotor, driven rotor and O-ring.
  8.  
  9. Remove the relief valve as follows:
    1. Using snapring pliers, remove the snapring for the relief valve.
    2.  
    3. Remove the retainer, spring(s) and relief valve from the front cover.
    4.  

  10.  

To install:

  1. Install the relief valve as follows:
    1. Install the relief valve, spring(s) and retainer to the valve cover.
    2.  
    3. Using snapring pliers, install the snapring to hold the relief valve.
    4.  

  2.  

Pack petroleum jelly between the oil pump gears. This will prime the pump during initial startup. DO NOT use chassis grease, as it will plug up the system. Ordinary petroleum jelly will seal the gear cavity long enough so the pump will prime and start drawing oil as soon as the crankshaft begins to turn, then dissolve as the engine warms.

  1. Install the drive and driven rotors as follows:
    1. Place the drive and driven rotors into the pump body.
    2.  
    3. Place a new O-ring to the pump body.
    4.  
    5. Install the pump cover with the nine screws.
    6.  

  2.  
  3. Install the timing chain cover.
  4.  
  5. Install the two rear timing chain cover mounting bolts and water bypass pipe mounting nuts. Tighten the bolts and nuts to 13 ft. lbs. (18 Nm).
  6.  
  7. Align the pulley set key with the key groove of the pulley and slide on the pulley. Install and tighten the pulley bolt to 193 ft. lbs. (260 Nm).
  8.  
  9. If equipped with A/C, install the crankshaft pulleys with the four bolts. Tighten the bolts to 18 ft. lbs. (25 Nm).
  10.  
  11. Install the oil strainer, and then tighten the fasteners to 13 ft. lbs. (18 Nm).
  12.  
  13. Clean the oil pan and cylinder block mating surfaces. Apply Formed In-Place Gasket (FIPG) sealer to the oil pan. Install the oil pan and tighten the fasteners to 9 ft. lbs. (13 Nm).
  14.  
  15. Install the flywheel housing undercover and dust seal.
  16.  
  17. If equipped with 2WD, install the stiffener plates. Tighten the eight bolts to 27 ft. lbs. (37 Nm).
  18.  
  19. Using a new O-ring, install the crankshaft position sensor; tighten to 74 inch lbs. (9 Nm).
  20.  
  21. Install the alternator to the engine as follows:
    1. Attach the alternator to the engine, then install the nut, pivot bolt, and the lock bolt. Do NOT tighten the bolts or nut at this time.
    2.  
    3. Connect the wire harness with the clip to the alternator.
    4.  
    5. Install the alternator wire with the nut.
    6.  
    7. Connect the alternator harness.
    8.  
    9. Install the drive belt to the engine.
    10.  
    11. Tighten the drive belt with the adjusting bolt. Belt tension should be as follows:

      New belt: 155175 lbs. (689778 N)
       
      Old belt: 75125 lbs. (334556 N)
       

    12.  
    13. Once the belt is tight, tighten the pivot bolt to 43 ft. lbs. (59 Nm); lock bolt to 21 ft. lbs. (29 Nm).
    14.  

  22.  
  23. If equipped with A/C, install the compressor as follows:
    1. Install the A/C compressor bracket with the four bolts; tighten to 32 ft. lbs. (44 Nm).
    2.  
    3. Connect the A/C compressor to the bracket with the four bolts, tighten to 18 ft. lbs. (25 Nm).
    4.  

  24.  
  25. Install the cylinder head.
  26.  
  27. Install the water pump pulley, fan shroud, fan (with fan clutch), and the alternator drive belt as follows:
    1. Place the fan (with the fan clutch), water pump pulley and fan shroud in position.
    2.  
    3. Install the water pump pulley mounting nuts, but do not tighten the nuts at this time.
    4.  
    5. Install the alternator drive belt to the engine.
    6.  
    7. Stretch the alternator belt tight, and then tighten the fan nuts to 16 ft. lbs. (21 Nm).
    8.  
    9. Adjust the drive belt for the alternator.
    10.  

  28.  
  29. Install the fan shrouds.
  30.  
  31. Install and adjust the power steering drive belt.
  32.  
  33. Install the oil dipstick guide with the bolt.
  34.  
  35. Connect the upper hose to the radiator.
  36.  
  37. If removed, attach the air pipe.
  38.  
  39. If equipped with 4WD, install the front differential and halfshaft assembly.
  40.  
  41. Install the engine undercover.
  42.  
  43. Lower the vehicle.
  44.  
  45. Fill the cooling system and engine oil.
  46.  
  47. Connect the negative battery cable.
  48.  
  49. Start the engine and check for leaks.
  50.  
  51. Recheck and top off all fluid levels.
  52.  
  53. Adjust ignition timing. Road test the vehicle for proper operation.
  54.  

5VZ-FE Engine


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Fig. Remove the oil pump screen bolts



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Fig. After you have removed all of the fasteners, remove the oil pump screen and pick up tube

  1. Disconnect the negative battery cable.
  2.  
  3. Raise and safely support the vehicle.
  4.  
  5. Remove the crankshaft timing pulley.
  6.  
  7. Drain the engine oil.
  8.  
  9. If equipped with 4WD, remove the front differential.
  10.  
  11. On A/T remove the oil cooler tube and clamp.
  12.  
  13. Remove the stiffener plate.
  14.  
  15. Unbolt the flywheel housing dust cover.
  16.  
  17. Disconnect the starter wire clamp.
  18.  
  19. Remove the crankshaft position sensor.
  20.  
  21. Unbolt and lower the oil pan.
  22.  
  23. Remove the oil strainer and gasket.
  24.  
  25. Unbolt the oil pan baffle plate.
  26.  
  27. Remove the eight bolts, ground strap and oil pump from the engine. Using a plastic head hammer, carefully tap the pump body. Remove the O-ring from the block.
  28.  



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Fig. Remove the bolts securing the oil strainer5VZ-FE engine



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Fig. Remove the three bolts retaining the oil pan baffle5VZ-FE engine



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Fig. Remove the bolts securing the oil pump body to the engine5VZ-FE engine

To install:

  1. Use a razor blade or equivalent to scrape the cylinder block and oil pan mating surfaces of any old sealing material. All traces of the old gasket and sealer must be removed.
  2.  
  3. Clean the pan thoroughly, using solvent if necessary. If the pan has a magnet in it, examine the shavings closely; excess metal is a sign of engine wear. A few slivers are normal. Use good judgment in relating the amount of debris to the amount of time the pan has been in place.
  4.  
  5. Apply multi-purpose grease to the oil seal lip. Using a special service tool 0930637010 or equivalent, along with a hammer, tap in the oil seal until its surface is flush with the pump body edge.
  6.  



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Fig. Place a bead of sealant as shown5VZ-FE engine



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Fig. Place the new O-ring into the groove of the block5VZ-FE engine

Pack petroleum jelly between the oil pump gears. This will prime the pump during initial startup. DO NOT use chassis grease as it will plug up the system. Ordinary petroleum jelly will seal the gear cavity long enough so the pump will prime and start drawing oil as soon as the crankshaft begins to turn. Then the jelly will dissolve as the engine warms.

  1. Remove any old sealant from the surface of the pump and apply new sealant to the oil pump. Place the new O-ring into the groove of the block. Place the pump on the crankshaft with the spline teeth of the drive rotor engaged with the large teeth of the crankshaft.
  2.  
  3. Tighten fasteners A to 15 ft. lbs. (20 Nm) and B to 31 ft. lbs. (42 Nm).
  4.  



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Fig. Place the pump on the crankshaft as shown5VZ-FE engine



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Fig. A and B bolt locations5VZ-FE engine

  1. Install the crankshaft position sensor.
  2.  
  3. Install the oil pan baffle plate.
  4.  
  5. Apply Formed In-Place Gasket (FIPG) sealer to the oil pan and install the pan to the cylinder block. Tighten the nuts and bolts to 66 inch lbs. (8 Nm). If parts are not assembled within five minutes of applying time, the sealer starts to skin over, the effectiveness of the sealer is lost and the sealer must be removed and reapplied.
  6.  
  7. Attach the flywheel housing under and cover dust.
  8.  
  9. Install the stiffener plate.
  10.  
  11. Connect the starter wire clamp.
  12.  
  13. On A/T install the oil cooler tube and clamp.
  14.  
  15. Reinstall the crankshaft timing pulley.
  16.  
  17. On the 4WD, install the front differential.
  18.  
  19. Install the engine undercover.
  20.  
  21. Lower the vehicle.
  22.  
  23. Fill with engine oil.
  24.  
  25. Connect the negative battery cable.
  26.  
  27. Start the engine and check for leaks.
  28.  

1FZ-FE Engine
  1. Drain the engine oil.
  2.  
  3. Remove the engine undercover.
  4.  
  5. Drain the engine coolant.
  6.  
  7. Remove the radiator.
  8.  
  9. Disconnect the A/C compressor and bracket. Loosen the pulley nut and adjusting bolt, then remove the belt. Put the compressor aside, but do NOT disconnect any of the lines.
  10.  
  11. Disconnect the radiator hose from the inlet, then unbolt and remove the radiator pipe.
  12.  
  13. Remove the water pump.
  14.  
  15. Remove the cylinder head using the procedures found in this section.
  16.  
  17. Disconnect the oil cooler bracket from the No. 1 oil pan.
  18.  
  19. Remove the oil level sensor and gasket.
  20.  
  21. Unbolt the No. 1 oil pan (upper pan) from the transmission housing.
  22.  
  23. Remove the No. 2 oil pan (lower pan), this is the pan with 17 mounting bolts. Insert a blade, or SST 0903200100, between the No. 1 and No. 2 oil pans. Remove the sealer and lower the No. 2 pan.
  24.  



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Fig. Remove the oil level sensor and gasket1FZ-FE engine



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Fig. Remove the bolts securing the No. 2 oil pan1FZ-FE engine



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Fig. A special tool is available to cut through the sealant of the oil pan1FZ-FE engine



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Fig. Use a prybar to pry portions A between the block and the No. 1 pan1FZ-FE engine

  1. Remove the 21 bolts retaining the No. 1 oil pan. Pry portions "A" between the block and the No. 1 pan.
  2.  
  3. Remove the oil pan baffle plate.
  4.  
  5. Remove the oil strainer.
  6.  
  7. Unbolt the crankshaft pulley, then remove the drive belt idler pulley.
  8.  
  9. Unbolt the oil pump (timing chain cover), timing chain and camshaft gear.
  10.  

To install:

  1. Turn the crankshaft until the set key on the crankshaft faces downwards.
  2.  
  3. Install the timing chain and camshaft gear.
  4.  
  5. Attach the oil pump (timing chain cover).
  6.  



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Fig. Apply sealant to the areas shown1FZ-FE engine



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Fig. Install the new gasket to the engine1FZ-FE engine

  1. Install the drive belt idler pulley, and then the crankshaft pulley.
  2.  
  3. Install the oil strainer to the block with a new gasket; tighten to 14 ft. lbs. (20 Nm).
  4.  
  5. Install the oil baffle plate, tighten to 78 inch lbs. (9 Nm).
  6.  
  7. Remove any old sealant from the No. 1 oil pan. Clean all the components with a non-residue solvent. Apply sealant to the No. 1 pan as shown. Install the pan within 5 minutes of application.
  8.  
  9. Install a new gasket into position. Pour approximately a few ounces of engine oil into the oil pump hole to help prime the pump. Install the No. 1 pan; tighten the 14mm heads to 31 ft. lbs. (44 Nm) and the 12mm heads to 14 ft. lbs. (20 Nm).
  10.  
  11. Apply sealant to the No. 2 pan, assemble within 5 minutes before the sealant starts to cure. Tighten the bolts to 69 inch lbs. (8 Nm) and the nuts to 78 inch lbs. (9 Nm).
  12.  



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Fig. Add a few ounces of engine oil to prime the pump1FZ-FE engine



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Fig. Apply sealant to the No. 2 pan as shown1FZ-FE engine

  1. Attach the bolts retaining the No. 1 pan to the transmission housing, tighten to 53 ft. lbs. (73 Nm).
  2.  
  3. Install the oil level sensor; tighten to 48 inch lbs. (5 Nm).
  4.  
  5. Connect the oil cooler pipe bracket to the No. 1 pan.
  6.  
  7. Install the cylinder head using a new gasket.
  8.  
  9. Install the water pump, with new gaskets, on the engine.
  10.  
  11. Connect the radiator hose to the inlet; tighten to 15 ft. lbs. (21 Nm).
  12.  
  13. Install the A/C compressor and bracket; tighten the bracket to 27 ft. lbs. (37 Nm) and the compressor to 18 ft. lbs. (25 Nm).
  14.  
  15. Install the radiator.
  16.  
  17. Attach the engine undercover.
  18.  
  19. Lower the vehicle. Fill the engine with oil and coolant.
  20.  
  21. Start the engine and check for leaks. Add any fluid as necessary.
  22.  

2UZ-FE Engine

Toyota specifies that the engine must be removed from the vehicle to service the oil pump. The oil pan and strainer should also be removed and cleaned at the same time.



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Fig. Exploded view of the oil pump2UZ-FE engine



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Fig. Crankshaft front oil seal service. Left: Pump removed; Right: Pump in place2UZ-FE engine



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Fig. Apply sealer where indicated and position the driven gear to engage the crankshaft teeth2UZ-FE engine



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Fig. There are five different length oil pump bolts. Use care to get all of the bolts in their proper locations2UZ-FE engine

  1. Remove the engine from the vehicle.
  2.  
  3. Mount the engine to a suitable engine stand.
  4.  
  5. Remove the timing belt.
  6.  
  7. Remove both timing belt idler pulleys.
  8.  
  9. Remove the crankshaft timing belt pulley.
  10.  
  11. Remove the crankshaft position sensor.
  12.  
  13. Remove the bolt holding the oil dipstick to the left side cylinder head and pull out the dipstick tube from the oil pan.
  14.  
  15. Remove the oil filer, oil cooler and filter bracket assembly noting the following:
    1. Detach the oil pressure switch connector.
    2.  
    3. Disconnect the oil cooler hose from the oil cooler.
    4.  
    5. Remove the bolts and nut, then separate the oil filter, oil cooler and filter bracket assembly from the front of the engine block.
    6.  

  16.  
  17. Remove the upper and lower oil pans using the procedures found in this section.
  18.  
  19. There are five different sizes of oil pump bolts. Take care to correctly identify each bolt, its length and location.
  20.  

It is good practice to punch holes in a piece of corrugated cardboard to closely resemble the bolt pattern of the oil pump. Insert the bolts in the cardboard in their corresponding locations as they are removed. A few minutes spent at removal will save much time at installation.

  1. Remove the eight bolts from oil pump and separate the pump from the engine block. Use care not to damage the sealing surfaces of the block or the pump. Discard the gasket.
  2.  

To install:

  1. Clean all parts well. It is recommended that the oil strainer be removed and cleaned.
  2.  
  3. Install the strainer with a new gasket and torque the fasteners to 66 inch lbs. (7.5 Nm).
  4.  
  5. The oil pump houses the front crankshaft seal. There are two methods of seal replacement.
    1. If the pump has been removed from the engine, simply pry out the old seal. Install a replacement using a seal driver or other suitable tool and tap in the new seal until surface is flush with the oil pump body edge.
    2.  
    3. If the oil pump is still on the engine, use a sharp knife to cut the oil seal lip. Insert a suitable prytool and pry out the seal. Use great care not to damage the crankshaft surface. Put tape over the removal tool to protect the crankshaft. Apply grease to the seal lip. Using a seal driver or other suitable tool and tap in the new seal until surface is flush with the oil pump body edge.
    4.  

  6.  
  7. If the pump was disassembled, install the drive and driver rotors into the pump body with the identification marks on the rotors facing the cover side (not the pump body side). Install the cover and tighten the ten screws to 84 inch lbs. (10 Nm).
  8.  
  9. The relief valve, if removed, should be cleaned. Coat the valve with engine oil and check that it falls smoothly into its bore by its own weight. If not, the valve and/or the pump body may have to be replaced. Install the relief valve, spring and retainer into the oil pump body bore. Use snapring pliers to install the retaining ring.
  10.  
  11. There is a small O-ring in the engine block above the crankshaft that must be replaced with a new O-ring. Examine the pump the spline teeth of the oil pump drive gear must align with the large teeth on the crankshaft. Position the pump drive gear, as required, so the pump will slide onto the crankshaft at assembly.
  12.  
  13. Make sure all old FIPG sealer is removed. The pump sealing flanges and the engine block sealing surfaces must be clean of all oil and grease or the new FIPG sealer wont work. Apply a 1 / 8 inch (3mm) bead of FIPG sealer to the oil pump sealing surface. Most sealers start to skin over in about five minutes so assemble the oil pump to the block without hesitation. Install the bolts just a few turns, making sure all bolt holes line up. Uniformly torque the bolts in several passes as follows:
    1. Tighten all bolts with a 14mm head to 22 ft. lbs. (30 Nm).
    2.  
    3. Tighten all other bolts 11 ft. lbs. (15 Nm).
    4.  

  14.  
  15. Install the oil pan components using the procedures found in this section.
  16.  
  17. Install the oil filter, oil cooler and filter bracket assembly. Torque the nuts and bolts to 13 ft. lbs. (18 Nm). Connect the oil cooler hose and attach the oil pressure switch connector.
  18.  
  19. Using a new O-ring, install the oil dipstick tube.
  20.  
  21. Install both timing belt idler pulleys.
  22.  
  23. Install the timing belt.
  24.  
  25. Install the engine in the vehicle. Refill with oil and coolant. Start the engine and verify correct oil pressure.
  26.  

 
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