Timing Chain & Sprockets (Crankshaft): Removal
- Disconnect negative battery cable. Remove timing chain housing. See TIMING CHAIN HOUSING (FRONT COVER) .NOTE: Align timing marks before disassembly. See Figure. Remove spark plugs to facilitate crankshaft rotation.
- Remove spark plugs. Position No. 1 cylinder at TDC. Align crankshaft keyway with timing mark on block. Ensure arrow on idler sprocket is at 6 o'clock position, and guide pins on camshaft sprockets are aligned with notches on cylinder head. See Figure.
- Remove camshaft timing chain and sprockets. See TIMING CHAIN & SPROCKETS (CAMSHAFT) . Remove crankshaft timing chain tensioner and guides. Remove idler sprocket and crankshaft timing chain. Remove crankshaft sprocket.