Suzuki Engine 2002 GRAND VITARA SQ420 Service Manual page 618

For J20 engine
1) Disconnect negative (–) cable at battery.
2) Drain coolant.
3) Remove radiator outlet hose from thermostat cap (2).
4) Remove heater outlet pipe bolt (1).
5) Remove generator belt by loosening tensioner pulley.
Refer to "Generator Belt" in Section 6H.
3. Exhaust manifold cover
6) Remove water pump assembly (1) by removing its 4 bolts
(2).
NOTE:
Do not lose dowel pin when removing water pump (1).
3. Thermostat cap
For H25 engine
1) Disconnect negative (–) cable at battery.
2) Drain engine oil.
3) 3) Drain cooling system.
4) Remove timing chain cover. Refer to "Timing Chain Cover" in
Section 6A2.
5) Remove water pump assembly (1).
ENGINE COOLING 6B-27