Camshaft, Balancer Shafts and Timing Gear Train/Camshaft TACHOMETER PICK-UP PIN REMOVAL 1. Drill and tap an extraction hole of approx. 6 mm (0.250 in.) diameter and 12 mm (0.500 in.) depth in center of pin. CD30200 -UN-07MAR95 2. Using a self-made puller (spacer, washer, screw), pull out the tachometer pick-up pin. CTM3274 (01JUL99) 20-11 Saran Liter Engines CD,3274,G20,11 -19-10MAR92 060799 PN=134 MEASURE HEIGHT OF CAM LOBE Measure longest and shortest diameter of each cam. Subtract shorter diameter from longer diameter to find the height of the cam lobe. If any lobe is not of the -UN-01NOV88 correct height, install a new camshaft. CAMSHAFT LOBE HEIGHT SPECIFICATIONS Intake lobe . . . . . .
. . . . . . . . 6.93—7.42 mm (0.273—0.292 in.) Maximum wear . . . . . . . . . . . . . . . . . . . 6.68 mm (0.263 in.) T81262 Exhaust lobe . . . . . . . . . . . . 6.76—7.26 mm (0.266—0.286 in.) Maximum wear . . . . . . . . . . . . . . . . . . . 6.50 mm (0.256 in.) IMPORTANT: To keep the initial working condition between cam lobes and cam followers, always replace cam followers when installing a new camshaft. CD,3274,G20,9 -19-10MAR92 20 CAMSHAFT GEAR REPLACEMENT 1. Remove gear from camshaft using a press. -UN-28OCT88 2. Install gear with timing mark (A) away from camshaft. 3. Press gear on shaft until flush with shoulder on camshaft. T88697 CD,3274,G20,10 -19-10MAR92 11