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DEFENDER ENGINE WATER PUMP INSPECTION AND The water pump is not a reconditionable unit but its condition can be determined by the following . , . . ... 1. 2. Spin the p u m p spindle and listen for bearing noise, also push and pull the spindle and If the bearing is in g o o d condition the clearance between the and the pump body should not vary. Inspect the vent hole in the pump body for signs of coolant or lubricant leaks. If there is any evidence of leakage, the pump should be renewed. Fitting water pump 3. Lightly grease a new joint washer and place it Clean the threads of the water pump retaining bolts and apply Loctite 572 thread lubricant sealant t o the threads of the long bolts which penetrate into the cylinder block. 5. Fit t h e pump t o the cylinder block and secure six bolts and o n e nut evenly t o the correct torque. . 6 . If separated, fit the fan blades t o the viscous coupling with the four screws. Fit the fan and viscous coupling assembly t o the water pump left-hand thread. I f air conditioning is fitted d o not at this stage fit the drive belt until the is fitted. Fitting ladder frame Since the sealant specified t o seal the ladder frame to the crankcase cures within fifteen minutes it is important t o fit sufficient bolts to ensure adequate compression while the cures. Clean both sides of t h e ladder frame and remove all traces of old sealant. Check that the frame is not distorted and is free from burrs and damage o n the mating faces that could oil o r bypass gas t o leak. 2. Coat both faces with Hylogrip Primer to clean and hasten curing then apply a bead of "Hylogrip 2000" wide t o t h e mating face with the crankcase. 3. Fit ten securing bolts through the ladder frame flange and two more through the sump face as 3 OIL 3. 4. PUMP OVERHAUL Bend back the lock washer and release the nut securing the strainer t o the oil p u m p body and off the oil pump cover and remove the driving and relief valve plug and sealing washer. Withdraw the relief valve spring for wear and scores. Examine the gears for wear, scores and pitting and renew if necessary. Note: Gears must b e renewed in pairs only. showing signs of wear the driven gear may be renewed. 71 |