Engine with new distributor and/or cylinder head. Turn distributor housing so that its mounting bolts are in the center of the holes. Tighten bolts. Turn crankshaft pulley by hand until marks are aligned (Fig. 7.37) and attach stroboscope.
Start the engine, disconnect the tube from the vacuum regulator at idle speed and plug its hole. Point the stroboscope and, turning the distributor housing, set the required ignition advance angle (IAA). Tighten the distributor mounting bolts and check the ignition setting again. Make marks on the distributor housing and/or cylinder head for correct ignition setting during subsequent repair work. The ignition timing can also be set using a test lamp, although this method is less accurate than using a stroboscope. Connect the test lamp between the low voltage wire and the ground. Disconnect the high voltage wire from the ignition coil. Align the mark on the crankshaft pulley with the mark marked "10" on the cover (Fig. 7.37). Turn on the ignition. Turn the distributor housing counter to the direction of rotor rotation until the test lamp lights up. As soon as the lamp lights up, tighten the distributor mounting bolts.
NOTE: Since May 1983, two types of crankshaft pulleys can be installed - cast iron and steel. The steel pulley has timing marks applied at the factory - from 4° to 12° BTDC.