Timing Chain & Sprockets: Removal
Disconnect negative battery cable. Remove timing chain cover. See TIMING CHAIN COVER . Position No. 1 piston on TDC of compression stroke. See Figure. Check alignment of camshaft and crankshaft sprocket timing marks. Check timing chain deflection. See INSPECTION . Remove camshaft sprocket retaining bolt and washer. Slide sprockets and timing chain forward and remove as an assembly.
CAUTION:
DO NOT replace camshaft sprocket retaining bolt with standard bolt. Original camshaft bolt has a drilled oil passage.