A leaking or noisy water pump can quickly lead to overheating and engine damage. This guide covers replacement procedure, common bolt sizes, and commonly published torque values for 100 Series engines. Always confirm specifications against the factory repair manual for your exact engine and model year before tightening fasteners. Before you begin This guide applies broadly to 100 Series Land Cruisers, but engine layouts differ. The 2UZ-FE V8, 1FZ-FE inline-six, and 1HD-FTE di

Essential Torque Specs Component Torque Spec Crankshaft Pulley Bolt 180 ft-lbs (245 Nm) Camshaft Pulley Bolts 80 ft-lbs (108 Nm) Timing Belt Idler Pulleys 25 ft-lbs (35 Nm) Drive Belt Tensioner To Block 12 ft-lbs (16 Nm) Teardown & Access: Drain the coolant, remove the radiator hoses, intake tube, and cooling fan. Remove the serpentine belt. Unbolt the AC compressor, power steering pump, and alternator to move them aside (do not disconnect the AC or power steering fluid lines