Service manual

Table Of Contents

G420F(FE) Service Manual Chapter 3. Engine Mechanical System 62

REMOVAL

1. Drain the engine coolant.

CAUTION

System is under high pressure when the engine

is hot. To avoid danger of releasing scalding

engine coolant, remove the cap only when the

engine is cool.

2. Remove drive belts.

3. Remove the timing belt.

4. Remove the timing belt idler.

5. Remove the water pump.

1) Remove the 4 bolts and pump pulley.

2) Remove the 3 bolts (C), then remove the

alternator brace (A).

3) Remove the water pump (B) and gasket.

INSPECTION

1. Check each part for crack, damage, and wear and

replace the water pump if necessary.

2. Check the bearing for damage, abnormal noise

and bad rotation and replace the water pump if

necessary.

3. Check the seal unit from C hole for leak and

replace the water pump assembly if necessary.

INSTALLATION

1. Clean the gasket surface of the water pump body

and cylinder block.

2. After getting water around new O-ring, install it

the groove in the coolant intake pipe front end.

Do not apply oil or grease to the O-ring.

3. Install a new water pump gasket and water pump

assembly. Tighten it to the specified torque.

WATERPUMP AND CYLINDER BLOCK

A 2.0 ~ 2.7 kg·m

B 2.0 ~ 2.4 kg·m

4. Install the timing belt tensioner and timing belt.

Adjust the timing belt tension and install the timing

belt cover.

5. After installing the water pump pulley and driving

belt, adjust the belt tension.

6. Add the standard coolant.

7. Run the engine and check for leak.