Attention! Wait until the engine has completely cooled down before starting this work.
Withdrawal
1. Disconnect a wire from the negative plug of the storage battery.
2. Drain the coolant (see chapter 1, section 29). If the coolant is relatively fresh or in good condition, save it for later use. Remove the drive belt (see chapter 1, section 21).
3. To perform disassembly, proceed as shown in a series of photographs, trying not to miss anything and reading all accompanying photo captions.
8.3a. Disconnect the electrical connector above the drive belt cover for easy access | 8.3b. Remove the upper radiator hose, vacuum tubes; unscrew the bolts of the drive belt cover and remove the cover (3.1 L engine shown; on a 3.8 liter engine, the device is similar): 1 - upper radiator hose, 2 - vacuum tubes, 3 - pulley bolts |
8.3c. Clamp the hose clamp, slide it back on the hose and separate the lower radiator hose from the coolant pump | 8.3y. Keep the pulley from rotating by wedging a screwdriver between the hub and one of the pulley bolts, then loosen the pulley bolts one at a time. When all the bolts are loosened, unscrew them and remove the pulley (the photo shows an example with a 3.1 l engine) |
8.3d. Unscrew the fixing bolts located around the perimeter of the pump (3.1L engine shown) | 8.Ze. Details of fastening of the pump of a cooling liquid (engine 3.8 l): 1 - coolant pump, 2 - gasket, 3 - short bolts, 4 - long bolts |
8.3g. Remove the coolant pump. If he "burnt", carefully pry it out using a screwdriver or a pry bar placed between the casing and the molded protrusion on the pump. Do not lean on the sealing surfaces, otherwise there will be a leak in this place later
4. Clean the threads of the fasteners and all threaded holes in the motor, removing any traces of corrosion and seals.
5. Compare the two pumps to make sure the old and new pumps are identical.
6. Remove all traces of the old gasket material from the engine with a scraper.
7. Clean mating surfaces of engine and coolant pump with paint thinner or acetone.
Assembly
8. Apply a thin coat of room temperature curing sealant to the new engine side gasket.
9. Apply a thin coat of room temperature curing sealant to the gasket contact surface of the new water pump, then carefully align the gasket and pump. Insert a couple of bolts through the pump mounting holes to hold the gasket in place (see illustration).
8.9. Insert a couple of bolts through the pump mounting holes to hold the new gasket in place when reassembling the pump
10. Carefully connect the pump and gasket to the motor and begin to tighten the bolts and nuts by hand.
11. Tighten the bolts 1/4 turn until the torque specified in section "Technical data" at the beginning of the chapter. Do not overtighten the bolts to avoid damaging the pump.
12. Reinstall all parts removed to gain access to the pump.
13. Fill the system with coolant (see chapter 1, section 29). Start the engine, let it run and check for leaks.