Table of contents: Models with aluminium cylinder block 🠇 Models with cast-iron cylinder block 🠇
Models with aluminium cylinder block
Note: A new impeller assembly O-ring and where applicable, a new impeller housing O-ring, will be required on refitting.
Removal
1. The coolant pump is driven by the timing belt and is located in a housing at the timing belt end of the engine.
2. Drain the cooling system as described in Chapter 1A or 1B.
3. Remove the timing belt as described in Chapter 2A or 2B.
4. Remove the securing bolts and withdraw the pump impeller assembly from the pump housing. Manipulate the pump past the engine mounting and withdraw it from the top of the engine compartment. Recover the O-ring (see illustrations).
7.4a. Withdraw the coolant pump...
7.4b.... and recover the O-ring - 1360 cc diesel engine shown
5. If desired, the pump impeller housing can be removed from the rear of the coolant pump housing. Access is most easily obtained from underneath the vehicle (it may be necessary to remove the exhaust heat shield). Disconnect the coolant hoses from the impeller housing (be prepared for coolant spillage), then remove the securing bolts and withdraw the impeller housing. Again, recover the O-ring.
Refitting
6. Ensure that all mating faces are clean.
7. Where applicable, refit the impeller housing to the rear of the coolant pump housing, using a new O-ring. Reconnect the coolant hoses.
8. Refit the impeller assembly to the pump housing, using a new O-ring.
9. Refit the timing belt as described in Chapter 2A or 2B.
10. Refill the cooling system as described in Chapter 1A or 1B.
Models with cast-iron cylinder block
Note: A new pump O-ring must be used on refitting.
11. The pump is driven by the timing belt and is located directly in the cylinder block.
12. Proceed as described previously for models with an aluminium cylinder block, but note that there is no separate impeller housing.