INSPECT WATER PUMP ASSY Visually check the drain hole for coolant leakage. OVERHAUL INSPECT CONNECTING ROD THRUST CLEARANCE Using a dial indicator, measure the thrust clearance while moving the connecting rod back and forth. Standard thrust clearance: 0.160 – 0.342 mm (0.063 – 0.0135 in.) Maximum thrust clearance: 0.342 mm (0.0135 in.) INSPECT CONNECTING ROD.