The water pump on the 2002 Volvo C70, regardless of which engine you have, is contained within the timing belt cover. The timing belt drives the water pump pulley. When you change the timing belt at the recommended interval, you should also replace the water pump, as this saves you money in the long run, since the same labor is involved for both the timing belt and the water pump.
Instructions
1. Slide the drain pan under the radiator petcock. Loosen the petcock and allow the coolant to drain. Tighten the petcock. Fit the appropriate socket on the bolt in the center of the tensioner pulley. If there is a square hole, just use the square end of the ratchet. Rotate the pulley away from the belt.
2. Lift the belt off the pulley. If your particular engine uses more than one belt, and the belts are not serpentine belts, loosen the lock nuts on the adjuster brackets and push the accessory toward the center of the engine to loosen the belt.
3. Unbolt and remove the timing belt cover, using the appropriate socket. Remove the timing belt (see Resources). Unbolt the water pump and remove it from the block. Clean the gasket-mounting surface on the block, using the plastic scraper and shop rags.
4. Install the new water pump with a new gasket. Tighten the water pump bolts to 15 foot-pounds of torque. Reinstall the timing belt.
5. Reinstall the front timing belt cover and tighten the bolts firmly. Reinstall the accessory drive belts using the belt diagram on the underside of the hood or on the radiator support. Refill the cooling system.
Tags: timing belt, water pump, belt cover, timing belt cover, appropriate socket