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INSTALLATION (1) Install rocker arm on the shaft in there origi- nal position (Fig. 9). (2) Install hydraulic lash adjusters making sure that adjusters are at least partially full of oil. This is (3) Install rocker arm shaft assembly tighten in se- quence shown in (Fig. 10). (4) Install valve cover as previously outlined. VALVE SPRINGS AND VALVE STEM SEALS VALVE SERVICE • CYLINDER HEAD MUST BE REMOVED TO VALVES AND VALVE SPRINGS REMOVAL (1) With cylinder head removed, compress valve springs using Valve Spring Compressor Tool C-3422-B with adopters 6537 and 6526 (Fig. 11). (2) Remove valve retaining locks, valve spring re- tainers, valve stem seals and valve springs. (3) Before removing valves, remove any burrs from valve stem lock grooves to prevent damage VALVE INSPECTION (1) Clean valves thoroughly and discard burned, warped and cracked valves. (2) Measure valve stems for wear. Refer to (Fig. 14) for specifications. (3) Remove carbon and varnish deposits from inside of valve guides with a reliable guide cleaner. VALVE GUIDES Measure valve guides in 3 places top, middle and bottom (Fig. 13). Using a small hole gauge and a Replace cylinder head if guides are not within specifications. TESTING VALVE SPRINGS (1) Refer to Testing Valve previously described in this Group for procedure. Test springs at 36.8 mm 6 40 N (9 lbs.). Discard the springs that do not meet specifications. (2) Inspect each valve spring for squareness with a steel square and surface plate, test springs from both 6.25 mm (2.094 in. 6.010 in.) Fig. 9 Intake and Exhaust Rocker Arm Assemblies Fig. 10 Rocker Arm Shaft—Installation Fig. 11 Valve Spring Compressor Fig. 12 Valve Guide Specification 9 - 38 2.2/2.5L ENGINE Ä |