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Remove the water pump access plate from the front cover.
Remove the right hand fender liner.
Important: A drain plug has been provided at the bottom of the water pump assembly for additional coolant drainage from the engine block and water pump.
Drain the coolant from the water pump using the plug at the bottom of the pump.
mportant: The water pump holding tool supports the sprocket and chain during water pump service. The tool must be used or the balance shaft must be re-timed.
Install the J 43651 into position.
Tighten the bolts on the water pump holding tool into the threads on the water pump sprocket.
Install the access cover bolts that were removed earlier to secure the water pump holding tool to the front cover assembly.
Remove the 3 inner water pump sprocket to water pump blots.
Important: Be sure to remove both water pump bolts from the front of the engine block.
Remove the 2 water pump bolts. Remove the rear 2 water pump bolts.
Remove the water pump.
Remove and discard the water pump O-ring seal.
Installation Procedure
Important: Prior to installing the water pump, read the entire procedure. This will help avoid balance shaft chain re-timing and ensure proper sealing.
Install a NEW water pump O-ring seal.
Important: A guide pin can be created to aid in water pump alignment. Use a M 6 m x 6 mm stud. Thread the pin into the water pump sprocket.
Using the guide pin, align the pin with the water pump holding tool.
Position the water pump against the engine block and hand tighten the water pump bolts.
Notice: Refer to Fastener Notice.
Install the inner water pump sprocket bolts. After 2 are snug, remove the guide pin and install the 3rd bolt. Tighten the bolts to 25 Nm (18 ft. lbs.).
Tighten the water pump sprocket bolts last. Tighten the bolts to 10 Nm (89 inch lbs.).
Remove the J 43651.
Install the water pump access plate and bolts. Tighten the bolts to 10 Nm (89 inch lbs.).
TO REPLACE WATER PUMP.FIRST YOU HAVE TO DRAIN THE COOLANT SYSTEM. REMOVE AIR INTAKE DUCT AND RESONATOR. REMOVE THE RADIATOR SHROUD AND FAN CLUTCH ASSEMBLY REMOVE THE DRIVE BELT. REMOVE WATER PUMP PULLEY.YOU NEED A PIN SPANNER WRENCH OR STRAP WRENCH TO HOLD WATER PUMP PULLEY WHILE LOOSEN WATER PUMP PULLEY BOLTS .YOU CAN BUY STRAP WRENCH OR RENT PIN SPANNER WRENCH AT AUTO ZONE PARTS STORES OR OTHER STORES HAS TOOLS CAN BE RENT. ONCE WATER PUMP PULLEY REMOVED. REMOVE THE WATER PUMP MOUNTING BOLTS. REMOVE WATER PUMP. IF WATER PUMP STUCK YOU CAN TAP WITH SOFT FACE HAMMER OR A LONG PIECE OF ROUND WOOD.WHEN WATER REMOVED.YOU NEED TO CLEAN THE SEALING SURFACE CAREFUL DONT SCRATCH SEALING SURFACE. YOU CAN BUY CAN OF SPRAY GASKET REMOVER.CLEAN SURFACE GOOD THEN WIPE WITH LACQUER THINNER OR ACETONE.THEN GET WATER PUMP NEW GASKET MATCH HOLES UP WITH GASKET TO WATER PUMP. ONCE HOLES MATCH UP APPLY RTV SEALANT ON BOTH SIDES WATER PUMP GASKET. THEN PUT GASKET ON WATER PUMP THEN INSTALL WATER PUMP TO VECHICLE.TORQUE WATER PUMP BOLTS TO 89 INCH LBS .TIGHTEN WATER PUMP PULLEY BOLTS TO 18 FT LBS THEN PUT EVERY THING BACK VISA VERSA.
It takes near to 1.5 hours to replace the water pump on Pontiac Aztec.
The procedure to replace the water pump is as follows:---
Water Pump Replacement --------- Removal Procedure :
Drain the cooling system until the coolant is below the level of the water pump.
Remove the drive belt guard.
Loosen the water pump pulley bolts.
Remove the drive belt.
Remove the water pump pulley bolts.
Remove the water pump pulley.
Remove the water pump bolts.
Remove the water pump.
Remove the water pump gasket.
Clean the water pump mating surfaces
Installation Procedure
Install the water pump gasket.
Install the water pump. Notice: Refer to Fastener Notice in Service Precautions.
Install the water pump bolts.
Tighten the bolts to 10 Nm (89 inch lbs.) .
Install the water pump pulley. Loosely install the mounting bolts.
1. Drain the cooling system until the coolant is below the level of the water pump. 2. Remove the drive belt guard. 3. Loosen the water pump pulley bolts. 4. Remove the drive belt. 5. Remove the water pump pulley bolts. 6. Remove the water pump pulley. 7. Remove the water pump bolts. 8. Remove the water pump. 9. Remove the water pump gasket. 10. Clean the water pump mating surfaces. Installation Procedure 1. Install the water pump gasket. 2. Install the water pump Notice: Refer to Fastener Notice in Service Precautions. 3. Install the water pump bolts. Tighten the bolts to 10 Nm (89 inch lbs.). 4. Install the water pump pulley. 5. Install the water pump pulley bolts. 6. Install the drive belt. Tighten the water pump pulley bolts to 25 Nm (18 inch lbs.). 7. Install the drive belt guard. 8. Fill the cooling system
1. Drain the cooling system until the coolant is below the level of the water pump. 2. Remove the drive belt guard. 3. Loosen the water pump pulley bolts. 4. Remove the drive belt. 5. Remove the water pump pulley bolts. 6. Remove the water pump pulley. 7. Remove the water pump bolts. 8. Remove the water pump. 9. Remove the water pump gasket. 10. Clean the water pump mating surfaces. Installation Procedure 1. Install the water pump gasket. 2. Install the water pump Notice: Refer to Fastener Notice in Service Precautions. 3. Install the water pump bolts. Tighten the bolts to 10 Nm (89 inch lbs.). 4. Install the water pump pulley. 5. Install the water pump pulley bolts. 6. Install the drive belt. Tighten the water pump pulley bolts to 25 Nm (18 inch lbs.). 7. Install the drive belt guard. 8. Fill the cooling system Visit my Blog here
CAUTION
Never open, service or drain the radiator or cooling system when
hot; serious burns can occur from the steam and hot coolant.
Drain the engine cooling system.
Raise and safely support the vehicle.
Remove the lower radiator hose from the water pump.
If the lower radiator hose is hard to reach on the back of the water
pump, remove the hose at the radiator and after the water pump is ready
to be removed, pull the water pump away from the engine block until
there is enough room to remove the hose from the pump.
Lower the vehicle.
Remove the accessory drive belt.
Remove the timing belt covers and the timing belt as outlined in
this Section.
Remove the four water pump retaining bolts.
Remove the water pump.
To install:
Thoroughly clean all sealing surfaces.
Install a new water pump gasket and the water pump onto the
cylinder block.
Tighten the retaining bolts to 12-15 ft. lbs. (16-20 Nm).
Reinstall the timing belt and the timing belt covers as outlined
in this Section.
Reinstall the accessory drive belt.
Raise and safely support the vehicle.
Reinstall the lower radiator hose.
Lower the vehicle.
Fill the engine cooling system.
Reconnect the negative battery cable.
Start the engine and top off the coolant as necessary. Check for
leaks.
2.5L Engine
Before continuing with this procedure, be sure three new water pump
retaining bolts (W701544) are available. Due to their torque-to-yield
design, the bolts stretch and cannot be reused.
Disconnect the negative battery cable.
CAUTION
Never open, service or drain the radiator or cooling system when
hot; serious burns can occur from the steam and hot coolant.
Drain the engine cooling system.
Remove the water pump pulley shield.
Remove the water pump drive belt.
Remove the water pump inlet and outlet hoses from the water pump.
Remove the three water pump to left cylinder head retaining bolts.
Remove the water pump and water pump housing from the vehicle.
Remove the water pump to water pump housing retaining bolts and
separate the water pump from the water pump housing.
To install:
Thoroughly clean all sealing surfaces.
Install the water pump to the water pump housing using a new
gasket and install the retaining bolts. Tighten the retaining bolts to
16-18 ft. lbs. (22-25 Nm).
Position the water pump and water pump housing and install three
new torque-to-yield retaining bolts into the left cylinder head.
Tighten the new retaining bolts to 11-13 ft. lbs. (15-18 Nm), then
rotate the retaining bolts 85-95 degrees.
Reinstall the water pump inlet and outlet hoses to the water pump.
Reinstall the water pump drive belt.
Reinstall the water pump shield.
Fill the engine cooling system.
Reconnect the negative battery cable.
Start the engine and top off the coolant as necessary. Check for
leaks.
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Remove the A/C compressor suction pipe bracket (if equipped).
Loosen four water pump pulley bolts. Do not remove the bolts.
Raise the vehicle. Support the vehicle. Remove the right lower splash shield.
Remove the right lower splash shield.
Remove the A/C compressor drive belt (if so equipped) by releasing the tensioner pulley and removing the belt from the crankshaft and compressor pulleys.
Loosen the generator adjusting bolt (1), pivot the generator and remove the water pump/generator drive belt.
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