Cooling System Pipes and Hoses

Engine cooling system pipes and hoses, SOHC engine

1 – bolt, 10–15 N·m;
2 – bypass hose;
3 – O-ring;
4 – coolant outlet fitting;
5 – coolant hose;
6 – coolant supply hose to heater.

Engine cooling system pipes and hoses, DOHC engine

1 – coolant inlet pipe;
2 – coolant outlet fitting.

Inspection

PROCEDURE

1. Inspect the cooling system pipes and hoses for damage, cracks, and swelling.
2. If necessary, replace them.

Replacement

PROCEDURE

1. When connecting the hose to the coolant outlet fitting, lubricate the O-ring with coolant.
2. Make sure the yellow mark on the end of the coolant inlet hose aligns with the yellow mark on the fitting.

Do not lubricate the O-ring with oil or grease.
Before installing the hoses, clean the fittings of dirt, dust, and sand.
Insert the coolant pipe fully into the water pump.
Use only a new O-ring when installing.