Wednesday, November 24, 2010

How do i replace a water pump in an 86 jeep cherokee?

ive been doing repair work on an old 86 jeep cherokee and when i let it idle there is a water leak, me and my dad came to the conclusion there was something wrong with the water pump. i cant find the manual and i dont even know what im looking for, so where would i find the water pump and how would i go about replacing it?How do i replace a water pump in an 86 jeep cherokee?For 2.5L %26amp; 4.0L Engines



Some vehicles use a serpentine drive belt and have a reverse rotating water pump coupled with a viscous fan drive assembly. The components are identified by the words REVERSE stamped on the cover of the viscous drive and on the inner side of the fan. The word REV is also cast into the body of the water pump.



1. Disconnect the negative battery cable.

2. Drain the cooling system.

3. Disconnect the hoses at the pump.

4. Remove the drive belts.

5. Remove the power steering pump bracket.

6. Remove the fan and shroud.

7. If equipped, remove the idler pulley to gain clearance for pump removal.

8. Unbolt and remove the pump.



To install:



9. Clean the mating surfaces thoroughly.

10. Using a new gasket, install the pump and tighten the bolts to 13 ft. lbs. (18 Nm).

11. If removed, install the idler pulley.

12. Reconnect the hoses at the pump and install accessory drive belt.

13. Install the power steering pump bracket. Install the fan and shroud.

14. Adjust the belt tension and fill the cooling system to the correct level.

15. Operate the engine with the heater control valve in the HEAT position until the thermostat opens to purge air from the system. Check coolant level and fill as required.