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Re: remove water pump
Sometimes those bolts are hard to get off. just keep trying and be sure not to strip them. put a big screwdriver or a pry bar between two of the bolts as you loosen one. then do the same all the way around the fan. and be sure to take out the radiator shroud to have more clearance
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special tools you need EN 48543 FAN CLUTCH HOLDING TOOL. J41240 FAN CLUTCH REMOVER AND INSTALLER. TORQUE FOR FAN CLUTCH NUT 41 LB FT. FOUR BOLTS TO FAN BLADE TORQUE 20 LB FT.WATER PUMP BOLTS TORQUE TO 11 LB FT. DONT NEED SPECIAL TOOLS REMOVE WATER PUMP.
You have to purchase or make a tool to hold the pully stationary as you unscrew the fan from the water pump shaft. I bought a strap of steel 1/8" thick and 1 1/2" wide and 24" long at the hardware store. I then drilled two holes in it close to one end, and close to one side of the strap. The hole diameter is just big enough to fit over the heads of the 10 mm bolts that hold the pulley in place. Note that the bolts are in a rectangular pattern. It is best to space your holes to fit two bolts that are the long side of the rectangle. Then I had to grind a half-moon shape into the side of the strap between the holes to allow for the shaft so the tool would get close enough for my little holes to fit over the bolt heads. If this is unclear, you should be able fine a picture of the tool on an automotive tool website.
Then I use a crescent wrench with extra narrow jaws to turn the nut on the fan clutch that screws onto the water pump shaft. This is a lot easier if you remove the air filter box so you can get to that nut easily.
Most important - that nut that holds the fan clutch on the water pump shaft is LEFT HANDED THREAD. Turn it clockwise to unscrew it.
since u removed the pump and fan assembly already place the pump carefully in a vice or some thing that will hold pump than use a strap wrench to hold the pulley and than unbolt the large nut it is a reverse thread so clockwise to loosen and counter clockwise to tighten
Hi. Here's the proceudere on how to replace the water pump of your 97 Chevy Cavalier.
•1 Drain the cooling system. Place a large oil drain container under the drain fitting located on the bottom of the radiator. Turn the drain fitting counterclockwise until fluid is draining from the radiator. Use a pair of pliers to turn the drain fitting if you cannot turn it by hand. Turn the fitting clockwise to tighten it after all of the fluid has drained from the radiator.
•2 Remove the cooling fan. Disconnect the electrical connection from the fan motor. Remove the bolts holding the fan assembly to the radiator support with a ratchet wrench. Pull the fan assembly up from the engine compartment and remove it.
•3 Remove the serpentine belt. Place a wrench over the belt tensioner and rotate the tensioner to release the tension on the belt. Pull the belt off the pulleys and remove it from the vehicle.
•4 Remove the water pump pulley. Place a screwdriver behind the pulley to lock it in place while removing the pulley mounting bolts with a ratchet wrench.
•5 Disconnect the coolant hoses running to the water pump.
•6 Remove the water pump mounting bolts with a ratchet wrench or wrench and remove the water pump from the vehicle.
•7 Clean the mating surfaces of the engine block and new water pump with a towel saturated with lacquer thinner.
•8 Apply a thin layer of RTV sealer to both sides of the new water pump gasket and place the gasket on the new water pump.
•9 Place the water pump against the engine block and finger tighten the water pump mounting bolts to hold the pump in place. Tighten the bolts with a torque wrench to 18 foot-pounds.
•10 Place the pulley on the water pump and install the water pump pulley mounting bolts with a ratchet wrench.
•11 Attach any hoses previously disconnected from the water pump.
•12 Install the serpentine belt. Route the belt over the pulleys according to the routing diagram in the engine compartment. Place a wrench over the belt tensioner and rotate the tensioner to tighten the tension on the belt.
•13 Install the cooling fan. Gently lower the cooling fan in position and install the mounting bolts attaching the fan assembly to the radiator support with a ratchet wrench. Attach the electrical connection to the fan motor.
•14 Refill the cooling system to the appropriate level, start the vehicle and check for leaks around the water pump.
how do you remove the fan and fan clutch from 1998 f150 4.2 liter engine. i am trying to replace the water pump but i cannot get the fan to break loose . i cannot figure how to stop pump from turning while trying to loosen the bolt or nut that holds the fan clutch on the water pump shaft . is there a special tool to help me with this
Locate water pump.. It's where the bottom radiator hose goes from the radiator. Remove any brackets or parts that are in your way. Remove water pump! Reverse procedure for installation.You have to remove the fan clutch from the water pump shaft and lift the shroud, fan and clutch all out together. remove two bolts in the center radiator support which let the radiator move forward an inch or so, loosen the fan from the clutch for a little more wiggle room to get it out. The shroud will have rubber splash shields hooked to the lower sides too, so be sure to unhook them or you will tear out the holes in the rubber shields.The fan clutch has to come off anyway because it's attached to the water pump. You don't need to remove the fan shroud. Just take out two bolts on the fan clutch and loosen the other two so you can push the clutch back a little (DON'T let the fan clutch fall). Then remove the water pump. It's a little tight, but much easier than removing the fan shroud.the only specialty tool that you will need is the water pumpt "grab" tool and the fan clutch wrench. These two items come together in one kit that you can rent from the Auto Parts store. The "grab" tool holds the water pumpt pully firmly while you rotate the fan clutch retainer using the fan clutch wrench.
DO NOT attempt to use a break over bar or some other home-grown tool to hold the water pump pully while attempting to break the fan clutch free - you will mess up the heads of the four retainer bolts holding the pully to the water pump face.this will help.thanks.
SPECIAL SERVICE TOOL(S) REQUIRED
Fan Clutch Holding Tool
Fan Clutch Nut Wrench
CAUTION: The large clutch assembly nut has a right-hand thread and must be rotated counterclockwise to remove it.
Remove the fan clutch (8A616) from the water pump (8501) by turning the large nut, which is part of the fan clutch, using Fan Clutch Holding Tool T84T-6312-C and Fan Clutch Nut Wrench T93T-6312-B.
Remove two screws retaining fan shroud.
Remove the fan blade (8600), fan clutch and shroud.
If the fan blade and fan clutch have to be separated, remove the remaining bolts attaching the fan blade to the fan clutch
5.0L, 5.8L and 7.5L Engines Removal
Remove screws retaining fan shroud (8146) to radiator (8005).
Remove four screws retaining clutch on water pump hub.
Pull fan clutch and fan blade off water pump pilot and remove fan clutch, fan blade and shroud from vehicle.
Remove four screws and separate fan clutch from fan blade.
Water Pump Pulley
Screw and Washer Assembly, 5/16-18 x .62 Hex
Fan Blade (5.0 and 5.8L)
Fan Blade (7.5L)
Screw and Washer Assembly, 5/16-24 x .88 Hex
16-24 Nm (12-18 Lb-Ft)