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5. The valve seat must maintain an angle of 44.5 – 45.0 degrees angle. 6. The valve face must maintain a face angle of 45.0 – 45.5 degrees angle. REMOVAL 1. Remove the cylinder head (Refer to 9 - ENGINE/CYLINDER HEAD - REMOVAL). 2. Compress valve springs using Valve Spring Compressor Tool special tool # C-3422 and adapter 8464. 3. Remove valve retaining locks, valve spring retainers, valve stem seals and valve springs. 4. Before removing valves, remove any burrs from valve stem lock grooves to prevent damage to the valve guides. Identify valves to ensure installation in original location. INSTALLATION 1. Clean valves thoroughly. Discard burned, warped and cracked valves. 2. Remove carbon and varnish deposits from inside of valve guides with a reliable guide cleaner. 3. Measure valve stems for wear. If wear exceeds 0.051 mm (0.002 inch), replace the valve. 4. Coat valve stems with lubrication oil and insert them in cylinder head. 5. If valves or seats are reground, check valve stem height. If valve is too long, replace cylinder head. 6. Install new seals on all valve guides. Install valve springs and valve retainers. 7. Compress valve springs with Valve Spring Compressor Tool special tool # C- 3422 and adapter 8464, install locks and release tool. If valves and/or seats are ground, measure the installed height of springs. Make sure the 8. Install cylinder head (Refer to 9 - ENGINE/CYLINDER HEAD - INSTALLATION). 9 - 2336 ENGINE - 5.7L SERVICE INFORMATION LX |