How to replace the water pump - 1990 Toyota Camry

Water Pump
REMOVAL & INSTALLATION
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.

2S-ELC Engines

1. Drain the cooling system.
   
2. Remove the timing belt as described in this section.
   
3. Remove the alternator adjusting bar.
   
4. Disconnect the lower radiator hose from the water inlet housing.
   
   
   
   
   
   Fig. 1: Exploded view of the water pump mounting
   
   
   
   
   
5. Disconnect the water temperature switch from the water inlet housing.
   
6. Disconnect the water by-pass hose from the water pump.
   
7. Remove the two heater pipe clamp bolt. Remove the two nuts and heater pipe
   with gasket. Replace the gasket.
   
8. Loosen the three water pump mounting bolts in the indicated sequence.
   
   
   
   
   
   Fig. 2: Water pump bolt loosening sequence for 2S-ELC and 3S-FE
   engines
   
   
   
   
   
9. Remove the water pump and O-ring. If the water pump is stubborn, tap it a
   few times with a rubber mallet.
   
10. Installation is the reverse of removal. Make sure all the water pump and
    engine contact surfaces are clean and install the new O-ring into the pump cover
    groove.
    
11. Install the water pump with the three bolts. Tighten the bolts in sequence
    to 82 inch lbs. (9 Nm).
    
12. Fill the cooling system to the proper level with a good brand of ethylene
    glycol based coolant. Start the engine and inspect for leaks.

1. Drain the cooling system.
   
2. Disconnect the water temperature switch connector from the water inlet
   housing.
   
3. Disconnect the lower radiator hose from the water inlet housing.
   
4. Remove the timing belt and timing belt pulleys as described in this section.
   
   
5. Remove the two nuts attaching the water by-pass pipe to the water pump
   cover.
   
6. Remove the three water pump-to-engine attaching bolts.
   
7. Pull the water pump and the water pump cover out from the engine.
   
8. Remove the two O-rings and gasket. Discard them and replace with new.
   
9. Installation is the reverse of removal. Secure the water pump onto the
   engine and install the three bolts. Tighten the bolts in an alternate pattern to
   82 inch lbs. (9 Nm). Install the by-pass pipe attaching nuts and tighten them to
   82 inch lbs. (9 Nm) also.
   
10. Fill the cooling system to the proper level with coolant.
    
11. Start the engine and check for leaks.

1. Drain the engine coolant.
   
2. Remove the timing belt.
   
3. Remove the No. 1 idler pulley and tension spring. Remove the No. 2 idler
   pulley.
   
4. Disconnect the lower radiator hose at the water inlet.
   
5. Remove the alternator belt adjusting bar.
   
6. Loosen the two nuts and disconnect the water by-pass pipe.
   
7. Remove the three pump mounting bolts in sequence (middle, top, bottom) and
   then pull out the water pump and cover. Remove the gasket and two O-rings.
   
   
   
   
   
   Fig. 3: Bolt removal sequence for 5how to replace the water pump - 89553g46.gif
   
   
   To install:
   
   
8. Replace the two O-rings and gasket with new ones, coat the by-pass O-ring
   with soapy water and then connect the pump cover to the by-pass pipe. Do not
   install the nuts yet!
   
9. With the pump loosely connected to the pipe, install the pump and tighten
   the three bolts to 82 inch lbs. (9 Nm), in sequence (top, bottom, middle).
   Install the two by-pass pipe nuts and tighten them to 78 inch lbs. (9 Nm).
   
10. The remainder of installation is the reverse of removal. Tighten each
    component to specifications.

1. Drain the engine coolant.
   
2. Disconnect the lower radiator hose at the water inlet.
   
3. Disconnect the timing belt from the water pump pulley.
   
4. Remove the bolt holding the inlet pipe to the alternator belt adjusting bar
   and then remove the inlet pipe and O-ring.
   
5. Remove the water inlet and thermostat.
   
6. Remove the seven bolts and then pry off the water pump.
   To install:
   
   
7. Scrape any remaining gasket material off the pump mating surface. Apply a
   0.08-0.12 inch (2-3mm) bead of sealant to the groove in the pump and then
   install the pump. Tighten the bolts to 14 ft. lbs. (20 Nm).
   
   
   
   
   
   Fig. 4: Apply sealant on how to replace the water pump - 89553g47.gifof the water pump as shown
   
   
   
   
   
   
8. The remainder of installation is the reverse of removal. Tighten each
   component to specifications. Connect the radiator hose and fill the engine with
   coolant.

1. Drain the engine coolant.
   
2. Remove the timing belt.
   
3. Mark the left and right camshaft pulleys with a touch of paint. Using a
   spanner wrench, remove the bolts to the right and left camshaft pulleys.
   Separate the pulleys from the engine. Be sure not to mix up the pulleys.
   
4. Remove the No. 2 idler pulley by removing the bolt.
   
5. Disconnect the three clamps and engine wire from the rear timing belt cover.
   
   
6. Remove the six bolts holding the No. 3 timing belt cover to the engine
   block.
   
   
   
   how to replace the water pump - 89553p75.jpgr /> Fig. 5: Unbolt the No. 3 timing belt cover from the engine
   
   
   
   
   
7. Remove the bolts and nuts to the extract thhow to replace the water pump - 89553p76.jpg.
   
   
   
   
   
   Fig. 6: Water pump mounting bolt and nut locations
   
   
   
   
   
8. Raise the engine slightly and remove the water pump and the gasket from thhow to replace the water pump - 89553p77.jpgne.
   
   
   
   
   
   Fig. 7: Pull the water pump from the engine and remove it from
   the vehihow to replace the water pump - 89553p78.jpgmg src="/uploads/images/89553p77.jpg" alt="89553p77.jpg" class="h_mi" />
   
   
   
   
   
   
   Fig. 8: Always discard the old gasket
   
   
   To install:
   
   
9. Check that the water pump turns smoothly. Also check the air hole for
   coolant leakage.
   
10. Using a new gasket, apply liquid sealer to the gasket, water pump and engine
    block.
    
11. Install the gasket and pump to the engine and install the four bolts and two
    nuts. Tighten the nuts and bolts to 53 inch lbs. (6 Nm).
    
12. The remainder of installation is the reverse of removal. Tighten each
    component to specifications.
    
    
    
    • Rear timing belt cover - 74 inch lbs. (9 Nm).
      
    • No. 2 idler pulley - 32 ft. lbs. (43 Nm)
    
    
13. Fill the engine chow to replace the water pump - prev.gifConnect the negative battery cable to the battery
    and start thhow to replace the water pump - next.gif.
    
14. Top off the engine coolant and check for leaks.