Water Passage Replacement
- Drain the engine coolant (see COOLANT CHECK ).
- Remove the alternator (see ALTERNATOR REMOVAL AND INSTALLATION ).
- Remove the A/C compressor without disconnecting the A/C hoses (see step 49 on ENGINE REMOVAL ).
- Remove the intake manifold:
- K20A3 engine (see REMOVAL - K20A3 ENGINE )
- K20A2, K20Z1 engines (see REMOVAL - K20A2, K20Z1 ENGINES )
- Remove a bolt (A) securing the connecting pipe.
- Remove the lower hose (B), connecting pipe (C), water bypass hose (D), and positive crankcase ventilation (PCV) hose (E).
- Remove the water passage (A).
- Remove the thermostat housing (B).
- Remove the water pump (see WATER PUMP REPLACEMENT ).
- Clean and dry the water passage mating surfaces.
- Apply liquid gasket, P/N 08717-0004, 08718-0001, 08718-0002, 08718-0001, or 08718-0009 evenly to the cylinder block mating surface of the water passage.NOTE: Do not install components if too much time has passed after applying the liquid gasket (for P/N 08718-0002, no more than 4 minutes, for all others, no more than 5 minutes). Instead, remove the old residue and reapply the liquid gasket.
- Install the water pump (see WATER PUMP INSPECTION ).
- Install the thermostat housing (A) with a new O-ring (B).
- Install the water passage (C) with a new O-ring (D).NOTE: Wait at least 30 minutes before filling the engine with coolant.
- Install the lower hose (A), water bypass hose (B), and positive crankcase ventilation (PCV) hose (C).
- Install the connecting pipe (D) with a new O-ring (E).
- Tighten a bolt (F) securing the connecting pipe.
- Install the intake manifold:
- K20A3 engine (see INSTALLATION - K20A3 ENGINE )
- K20A2, K20Z1 engines (see INSTALLATION - K20A2, K20Z1 ENGINES )
- Install the A/C compressor (see step 3 on ENGINE INSTALLATION ).
- Install the alternator (see ALTERNATOR REMOVAL AND INSTALLATION ).