On-Vehicle Service; Water Pump Removal - Isuzu NHR 4J Series Workshop Manual

6B - 6 ENGINE COOLING
WATER PUMP

ON-VEHICLE SERVICE

REMOVAL
Preparation:
•
•
1. Fan Shroud
•
2. Cooling Fan Assembly
•
3. Power Steering Pump Drive Belt
•
6B-5-2.tif
4. A/C Compressor Drive Belt
•
6B-5-3.tif
Disconnect battery ground cable.
Drain coolant
Remove the reservoir tank hose, bypass hose and fan
guide.
Remove lock nut and take out cooling fan assembly.
Loosen the idler pulley lock nut and loosen adjust bolt,
and remove the drive belt.
Loosen A/C compressor idler pulley lock nut and
adjust bolt and remove the drive belt.
Removal steps
1. Fan shoroud
2. Cooling fan Assembly
3. Power steering pump drive
belt
4. A/C compressor drive belt
5. AC generator drive belt
6. Crankshaft damper pulley
7. Timing pulley upper cover
8. Timing pulley lower cover
9. Water pump Assembly
Installation steps
To install, follow the removal
steps in the reverse order.
6B-5-1.tif