What bolt?In the center of the pulley or one that mounts to the engine block?If it's in the pulley go to autozone and get a replacement.If it is broken off in the block you can grab it with vice grips if it is sticking out and try to unscrew it.If it is flush with or recessed into the block you will most likely have to drill it out then retap the hole to run a new bolt into it.WARNING! Drilling at an angle or drilling too wide or too deep can breech the oil galley or the water jacket or crack the block and all but ruin the engine! If you do it yourself BE CAREFUL of what you are doing! If you aren't sure about doing it yourself,take it to a reputable mechanic or machine shop to have done! Hope this helps.Good luck!
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Drain the coolant. Slightly loosen the water pump pulley bolts, but don't remove. Remove the serpentine belt, by inserting a 3/8" ratchet in the square hole of the tensioner, and turn counter-clockwise until belt can be removed. Remove the water pump pulley bolts, remove pulley. Remove the water pump mounting bolts to the engine. Remove the water pump. Carefully clean off all old gasket material, use course sandpaper the clean the engine side surface. Install water pump with new gasket, install bolts, tighten to 18 ft/lbs. install the pulley and snug bolts. Reinstall belt and retighten pulley bolts. Fill with coolant, open bleeder valve until coolant runs out. Close bleeder, Install rad cap, start engine until thermostat opens to get all the air out of the system. Let engine cool, recheck coolant level, and check for leaks.
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.
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
You need to Locate the Belt Tensioner. It will have a Large Pulley with a Bolt in the Middle above the Belt and a Smaller one Below the Belt that keeps Tension on the Belt. You will need a Wratchet, Socket and Cheater Bar. Turn the Bolt in the Middle of the Large Pulley with the Wratchet and Cheater Bar. It will lower the Smaller Pulley so that you can Remove the Belt. Please Rate My Response! Thanks!