Water pump replacement

To be able to replace the bybass hose on the water pump, you must first make room to gain access to the hose clamps that attach to the water pump. To make room you must first remove the fan clutch, fan and fan shroud all of them simultaneously.
To do that, start by loosening the tensioner roller with a rathcet and removing the serpentine belt. Then loosen the fan cluthc nut using a 32 mm spaner and loosen the bolts of the fan shroud. Then pull the three things upwards (fan shroud, fan, and fan clutch).

TO REPLACE WATER PUMP.REMOVE THE RADIATOR SHROUD HALVES.REMOVE FAN CLUTCH AND FAN.YOU NEED FAN CLUTCH WRENCH AND A FAN CLUTCH PULLEY HOLDER.YOU CAN RENT TOOLS AT AUTO ZONE OR BUY THEM AT A AUTO PARTS STORE.THE FAN CLUTCH BOLTS ARE LEFT HAND THREAD. REMOVE THEM BY TURNING CLOCKWISE.BEFORE INSTALLING NEW WATER PUMP COAT BOTH SIDES OF WATER PUMP GASKET WITH GASKET SEALER.TORQUE WATER PUMP BOLTS 18 FT LBS.

To replace water pump on Chevrolet s-10. You need take of the top half of the fan shroud, pop off the hoses to the water pump and the take out the bolts to the water pump.To get the fan off, you need a special tool called a half h tool, The half H tool holds the bolts in place so you have leverage to then twist the fan off.Before removing parts to replace water pump first drain the antifreeze.Place the drain pan under the radiator, open the drain on the bottom of the radiator and allow the antifreeze to drain into the pan.Remove the upper fan shroud using a 10-mm socket. Remove the four 13-mm nuts securing the radiator fan to the water pump pulley, using a wrench.Pull the water pump pulley off the water pump. Remove all hoses from the water pump, including the lower radiator hose and upper heater hoses. Remove the four bolts securing the water pump to the block, using a 15-mm socket and ratchet with the 3-inch extension. lift the water pump off the block. Clean all the remaining gasket material off the block passages using the gasket scraper. Lay the new water pump face down with the outlet ports up.And complete the procedure of fitting the new water pump in reverse of how you removed the old one.---------------- Thank you.

Assuming this is a 460 Ford Big Block:

REMOVAL

-Drain cooling system.
-Remove drive belts.
-Remove bolts attaching fan shroud to radiator.
-Remove fan blade from fan clutch and remove fan shroud.
-Remove fan clutch and water pump pulley from water pump.
-Remove four bolts and one nut attaching A/C compressor mounting bracket to cylinder head and water pump. Do not remove A/C compressor or power steering pump from A/C compressor mounting bracket.
-Pull A/C compressor mounting bracket forward to remove from stud on water pump.
-Remove bolt attaching generator adjusting arm to water pump. Remove four bolts attaching generator mounting bracket to cylinder head, cylinder block and water pump.
-Remove remaining water pump attaching bolts and remove water pump from engine front cover.
-Remove water pump cover from water pump. Discard water pump housing gasket and water pump cover gasket.
INSTALLATION
-Remove any gasket material from water pump cylinder front cover and separator plate mating surfaces.
-Position new water pump housing gasket and water pump cover gasket coated on both sides with Perfect Seal Sealing Compound B5A-19554-A or equivalent water-resistant sealer meeting Ford specification ESE-M4G115-A.
-Position water pump and water pump cover onto engine front cover. Install bolts and tighten to16-24 Nm (12-18 ft. lbs.).
-Install generator mounting bracket to cylinder head, cylinder block and water pump with four attaching bolts. Install generator adjusting arm to water pump with one attaching bolt. Tighten 7/16-inch bolts to 54-71 Nm (40-53 ft. lbs.) and 3/8-inch bolts to 41-54 Nm (30-40 ft. lbs.).
-Position A/C compressor mounting bracket over water pump stud and secure to cylinder head with four bolts tightened to 54-71 Nm (40-53 ft. lbs.) and secure nut to water pump to 41-54 Nm (30-40 ft. lbs.).
-Install water pump pulley and fan clutch to water pump hub with four bolts. Install fan blade to fan clutch with four bolts. Tighten water pump pulley, fan clutch hub bolts, and fan-to-fan clutch hub bolts to 16-24 Nm (12-18 ft. lbs.). Install fan shroud.
-Install drive belts.
-Fill and bleed the cooling system.
-Start the engine and check for leaks

This is for the 3.9 v6 you did not specify motor size.
Hope this helps, it it does please leave feedback Thank You and Good Luck


The water pump can be removed and installed without discharging the air conditioning system (if equipped).

1. Disconnect battery negative cable.
2. Drain cooling system.
3. Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse.

WARNING: CONSTANT TENSION HOSE CLAMPS ARE USED ON MOST COOLING SYSTEM HOSES. WHEN REMOVING OR INSTALLING, USE ONLY TOOLS DESIGNED FOR SERVICING THIS TYPE OF CLAMP, SUCH AS SPECIAL CLAMP TOOL (NUMBER 6094). SNAP-ON CLAMP TOOL (NUMBER HPC-20) MAY BE USED FOR LARGER CLAMPS. ALWAYS WEAR SAFETY GLASSES WHEN SERVICING CONSTANT TENSION CLAMPS.

CAUTION: A number or letter is stamped into the tongue of constant tension clamps. If replacement is necessary, use only an original equipment clamp with matching number or letter.

1. Remove upper radiator hose clamp and hose at radiator.

Fan Blade And Viscous Fan Drive-3.9L/5.2L/5.9L Engines

1. The thermal viscous fan drive is attached (threaded) to the water pump hub shaft. Remove fan/viscous fan drive assembly from water pump by turning mounting nut counterclockwise as viewed from front. Threads on viscous fan drive are RIGHT HAND. A Snap-On 36 MM Fan Wrench (number SP346 from Snap-On Cummins Diesel Tool Set number 2017DSP) can be used. Place a bar or screwdriver between water pump pulley bolts to prevent pulley from rotating. Do not attempt to remove fan/viscous fan drive assembly from vehicle at this time.
2. If water pump is being replaced, do not unbolt fan blade assembly from thermal viscous fan drive.
3. Remove fan shroud attaching hardware (two bolts at bottom-two clips at top).
4. Remove fan shroud and fan blade/viscous fan drive assembly from vehicle as a complete unit.
5. After removing fan blade/viscous fan drive assembly, do not place thermal viscous fan drive in horizontal position. If stored horizontally, silicone fluid in viscous fan drive could drain into its bearing assembly and contaminate lubricant.
6. Do not remove water pump pulley bolts at this time.

Automatic Belt Tensioner Assembly-3.9L/5.2L/5.9L Engines

1. Remove accessory drive belt as follows: The drive belt is equipped with a spring loaded automatic tensioner. Relax tension from belt by rotating tensioner clockwise (as viewed from front). When all belt tension has been relaxed, remove accessory drive belt.
2. Remove four water pump pulley-to-water pump hub bolts and remove pulley from vehicle.
3. Remove lower radiator hose clamp and remove lower hose at water pump.
4. Remove heater hose clamp and heater hose from heater hose coolant return tube.

Coolant Return Tube-3.9L/5.2L/5.9L Engines-Typical

1. Loosen heater hose coolant return tube mounting bolt and remove tube from water pump. Discard the old tube O-ring.

Water Pump Bolts-3.9L/5.2L/5.9L Engines

1. Remove seven water pump mounting bolts.
2. Loosen clamp at water pump end of bypass hose. Slip bypass hose from water pump while removing pump from vehicle. Discard old gasket.

CAUTION: Do not pry water pump at timing chain case/cover. The machined surfaces may be damaged resulting in leaks.


Belt Routing-3.9L/5.2L/5.9L Engines

I'll assume you have a 4.0l

The 4.0L engine is equipped with a reverse rotation (counterclockwise) water pump. The word REVERSE is stamped or imprinted on the cover of the viscous fan drive and on the inner side of t he fan. The letter R is stamped onto the water pump impeller. When replacing water pump, ensure proper pump is installed. Installation of the wrong water pump will cause engine overheating.

NOTE:On models with 4.0 L engine, front grill must be removed to access radiator draincock. Draining cooling system can be accomplished by removing drain plug from side of block as well as by loosening radiator draincock. Drain plug is located on lower left side of engine block.

Disconnect negative battery cable. Drain cooling system. Disconnect electric cooling fan connector. Remove electric cooling fan and electric fan shroud assembly (if equipped).
Loosen, but do not remove, 4 water pump pulley-to-water pump hub bolts and 4 viscous fan-to-idler pulley nuts. Remove accessory drive belt. Remove 4 viscous fan to idler pulley nuts, and remove fan and shroud together.
Remove 4 water pump pulley bolts and remove pulley. Remove power steering pump and bracket. Disconnect heater hoses and lower radiator hose at water pump. Remove 4 water pump retaining bolts. Remove water pump.

to install just reverse procedures

The water pump can be removed and installed without discharging the air conditioning system (if equipped).

1. Disconnect battery negative cable.
2. Drain cooling system. Refer to Draining and Filling found under Cooling System, Service and Repair.
3. Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse. WARNING: CONSTANT TENSION HOSE CLAMPS ARE USED ON MOST COOLING SYSTEM HOSES. WHEN REMOVING OR INSTALLING, USE ONLY TOOLS DESIGNED FOR SERVICING THIS TYPE OF CLAMP, SUCH AS SPECIAL CLAMP TOOL (NUMBER 6094). SNAP-ON CLAMP TOOL (NUMBER HPC-20) MAY BE USED FOR LARGER CLAMPS. ALWAYS WEAR SAFETY GLASSES WHEN SERVICING CONSTANT TENSION CLAMPS. CAUTION: A number or letter is stamped into the tongue of constant tension clamps. If replacement is necessary, use only an original equipment clamp with matching number or letter.
4. Remove upper radiator hose clamp and hose at radiator.
5. The thermal viscous fan drive is attached (threaded) to the water pump hub shaft. Remove fan/viscous fan drive assembly from water pump by turning mounting nut counterclockwise as viewed from front. Threads on viscous fan drive are RIGHT HAND. A Snap-On 36 MM Fan Wrench (number SP346 from Snap-On Cummins Diesel Tool Set number 2017DSP) can be used. Place a bar or screwdriver between water pump pulley bolts to prevent pulley from rotating. Do not attempt to remove fan/viscous fan drive assembly from vehicle at this time.
6. 6. If water pump is being replaced, do not unbolt fan blade assembly from thermal viscous fan drive.
7. Remove fan shroud attaching hardware (two bolts at bottom-two clips at top).
8. Remove fan shroud and fan blade/viscous fan drive assembly from vehicle as a complete unit.
9. After removing fan blade/viscous fan drive assembly, do not place thermal viscous fan drive in horizontal position. If stored horizontally, silicone fluid in viscous fan drive could drain into its bearing assembly and contaminate lubricant.
10. Do not remove water pump pulley bolts at this time.
11. Remove accessory drive belt as follows: The drive belt is equipped with a spring loaded automatic tensioner. Relax tension from belt by rotating tensioner clockwise (as viewed from front). When all belt tension has been relaxed, remove accessory drive belt.
12. 12. Remove four water pump pulley-to-water pump hub bolts and remove pulley from vehicle.
13. Remove lower radiator hose clamp and remove lower hose at water pump.
14. Remove heater hose clamp and heater hose from heater hose coolant return tube.
15. Loosen heater hose coolant return tube mounting bolt and remove tube from water pump. Discard the old tube O-ring.
16. Remove seven water pump mounting bolts.
17. Loosen clamp at water pump end of bypass hose. Slip bypass hose from water pump while removing pump from vehicle. Discard old gasket. CAUTION: Do not pry water pump at timing chain case/cover. The machined surfaces may be damaged resulting in leaks.

INSTALLATION

1. Clean gasket mating surfaces.
2. Using a new gasket, install water pump to engine as follows: Guide water pump nipple into bypass hose as pump is being installed. Install water pump bolts. Tighten water pump mounting bolts to 40 Nm (30 ft. lbs.) torque.
3. Position bypass hose clamp to bypass hose.
4. Spin water pump to be sure that pump impeller does not rub against timing chain case/cover.
5. Install a new O-ring to the heater hose coolant return tube. Coat the new O-ring with antifreeze before installation.
6. Install coolant return tube and its mounting bolt to engine. Be sure the slot in tube bracket is bottomed to mounting bolt. This will properly position return tube.
7. Connect radiator lower hose to water pump.
8. Connect heater hose and hose clamp to coolant return tube.
9. Install water pump pulley. Tighten bolts to 27 Nm (20 ft. lbs.) torque. Place a bar or screwdriver between water pump pulley bolts to prevent pulley from rotating.
10. Relax tension from belt tensioner. Install accessory drive belt.
11. CAUTION: When installing the serpentine accessory drive belt, the belt must be routed correctly. If not, engine may overheat due to water pump rotating in wrong direction. Refer to Illustration above for correct belt routing. The correct belt with correct length must be used.
12. Position fan shroud and fan blade/viscous fan drive assembly to vehicle as a complete unit.
13. Install fan shroud.
14. Install fan blade/viscous fan drive assembly to water pump shaft.
15. Fill cooling system.
16. Connect battery negative cable.
17. Start and warm the engine. Check for leaks.

The text below is from the GM Service manual 4.3L V6 Engine
Water Pump Replacement (4.3L)
Removal Procedure
Drain the cooling system. Refer to Draining and Filling Cooling System .
Loosen the water pump pulley bolts.
Remove the cooling fan and clutch assembly.

Tools Required
J 46406 Fan Clutch Wrench

Removal Procedure
Remove the upper fan shroud.
Remove the fan clutch from the water pump in a counterclockwise direction using the J 46406 .
Remove the fan clutch assembly.
Remove the drive belt. Refer to Drive Belt Replacement Remove the water pump pulley mounting bolts.
Remove the water pump pulley.
Remove the radiator outlet hose clamp from the water pump.
Remove radiator outlet hose from the water pump.
Remove the water pump mounting bolts.
Remove the water pump from the engine.
Remove the water pump gaskets.
Clean the water pump gasket mating surfaces.
Installation Procedure
Install the water pump gaskets.
Install the water pump to the engine.
Apply a sealer (GM P/N 12346004) to the bolt threads.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Install the water pump mounting bolts.
Tighten
Tighten the mounting bolts to 41 N·m (30 lb ft).
Install the radiator outlet hose to the water pump.
Install the water pump pulley.
Install the water pump pulley bolts.
Tighten
Tighten the water pump pulley bolts to 25 N·m (18 lb ft).
Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 4.3L.
Install the fan clutch assembly.
Fill the radiator cooling system. Refer to Draining and Filling Cooling System .
Inspect the cooling system for leaks.

Please RATE ME
This IS EXACT Procedure Bu The BOOK
REMOVAL

1. Drain cooling system.
2. Loosen fan clutch attaching bolts.
3. Remove fan shroud attaching bolts and remove shroud and fan.
4. Remove drive belt.
5. Disconnect lower radiator hose, heater hose and bypass hose from water pump.
6. Remove fan, spacer, water pump pulley and fan shroud.
7. Remove A/C compressor/power steering pump bracket and accessories to clear water pump stud bolt.
8. Remove water pump attaching bolts and the water pump.

INSTALLATION

1. Reverse procedure to install. Tighten water pump retaining bolts to 12-18 ft. lbs.

NOTE: All water pumps have a sealed bearing integral with the water pump shaft. The bearing requires no lubrication. A bleed hole in the pump housing allows water that may leak past the seal to be thrown out by the slinger. This is not a lubrication hole. If the pump is damaged and requires repair, replace it with a new pump or a rebuilt one.
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WATER PUMP
The water pump is bolted directly to the engine timing chain case/cover.

A gasket is used as a seal between the water pump and timing chain case/cover.

If water pump is replaced because of bearing/shaft damage, or leaking shaft seal, the mechanical cooling fan assembly should also be inspected. Inspect for fatigue cracks, loose blades, or loose rivets that could have resulted from excessive vibration. Replace fan if any of these conditions are found. Also check condition of the thermal viscous fan drive. Refer to Viscous Fan Drive in this group.

The water pump can be removed without discharging the air conditioning system (if equipped)

REMOVAL
Disconnect negative battery cable from battery.
Drain cooling system. Refer to Draining Cooling System in this group.
Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse.

The thermal viscous fan drive is attached (threaded) to the water pump hub shaft. Remove fan/viscous fan drive assembly from water pump by turning mounting nut counterclockwise as viewed from front. Threads on viscous fan drive are RIGHT HAND. Using special tool spanner wrench 6958 with adapter pins 8346 and a suitable fan wrench loosen the fan drive Viscous Fan and Fan Drive Do not attempt to remove fan/viscous fan drive assembly from vehicle at this time.
WARNING: CONSTANT TENSION HOSE CLAMPS ARE USED ON MOST COOLING SYSTEM HOSES. WHEN REMOVING OR INSTALLING, USE ONLY TOOLS DESIGNED FOR SERVICING THIS TYPE OF CLAMP, SUCH AS SPECIAL CLAMP TOOL (NUMBER 6094) SNAP-ON CLAMP TOOL (NUMBER HPC-20) MAY BE USED FOR LARGER CLAMPS. ALWAYS WEAR SAFETY GLASSES WHEN SERVICING CONSTANT TENSION CLAMPS.

CAUTION: A number or letter is stamped into the tongue of constant tension clamps. If replacement is necessary, use only an original equipment clamp with matching number or letter.

If water pump is being replaced, do not unbolt fan blade assembly from thermal viscous fan drive.
Remove two fan shroud-to-radiator nuts Fan Shroud Mounting Hardware Do not attempt to remove fan shroud at this time.
Remove fan shroud and fan blade/viscous fan drive assembly from vehicle as a complete unit.
After removing fan blade/viscous fan drive assembly, do not place thermal viscous fan drive in horizontal position. If stored horizontally, silicone fluid in viscous fan drive could drain into its bearing assembly and contaminate lubricant.
Remove accessory drive belt as follows: The drive belt is equipped with a spring loaded automatic belt tensioner. Relax tension from belt by rotating tensioner clockwise (as viewed from front) Automatic Belt Tensioner - When all belt tension has been relaxed, remove accessory drive belt.
Remove lower radiator hose clamp and remove lower hose at water pump.
Remove seven water pump mounting bolts and one stud bolt
CAUTION: Do not pry water pump at timing chain case/cover. The machined surfaces may be damaged resulting in leaks.

Remove water pump and gasket. Discard gasket.
INSTALLATION
Clean gasket mating surfaces.
Using a new gasket, position water pump and install mounting bolts as shown. Water Pump Installation - Tighten water pump mounting bolts to 54 N·m (40 ft. lbs.) torque.
Spin water pump to be sure that pump impeller does not rub against timing chain case/cover.
Connect radiator lower hose to water pump.
Relax tension from belt tensioner Automatic Belt Tensioner - Install drive belt
CAUTION: When installing the serpentine accessory drive belt, belt must be routed correctly. If not, engine may overheat due to water pump rotating in wrong direction. Refer to Belt Routing for correct belt routing. Or, refer to the Belt Routing Label located in the engine compartment. The correct belt with correct length must be used.

Position fan shroud and fan blade/viscous fan drive assembly to vehicle as a complete unit.
Be sure the upper and lower portions of the fan shroud are firmly connected. All air must flow through the radiator.
Install two fan shroud-to-radiator nuts Fan Shroud Mounting Hardware
Be sure of at least 25 mm (1.0 inches) between tips of fan blades and fan shroud.
Install fan blade/viscous fan drive assembly to water pump shaft.
Fill cooling system. Refer to Refilling the Cooling System in this group.
Connect negative battery cable.
Start and warm the engine. Check for leaks