MAINTENANCE 24.8.4 CHECK ENGINE VALVE CLEARANCE, ADJUST 1. Remove the air crossover tube. 2. Disconnect the support clamps, hose clamp and wastegate sensing line. Remove the crankcase vent tube and any other parts that would prevent removal of the valve cover. 3. Remove the valve cover. 4. Locate top dead center (TDC) for cylinder number 1 by rotating the crankshaft slowly while pressing on the engine timing pin. Tool: 1/2-inch drive, Barring Gear 3377381 3-60 WA320-3MC