For GMA and GPA model engines
Disconnect the negative cable from the battery, remove the high-voltage cables from the distributor cap and disconnect the tube from the vacuum regulator. Remove the central cable from the ignition coil. Loosen the three mounting bolts and remove the distributor. Before installing the distributor, check the condition of the gasket 5 (fig. 7.22) and position the coupling 3 according to the socket on the camshaft (Fig. 7.34).
Install the distributor in place. Align the mark on the distributor body with the mark on the cylinder head (Fig. 7.35), install the high-voltage wires and vacuum regulator tube in place.
If a new distributor is being installed, turn it so that the mounting bolts are in the middle of the holes.
For GLA model engine
Disconnect the negative cable from the battery and remove the high-voltage cables from the distributor cap. Turn the crankshaft and set the piston of the first cylinder to TDC of the compression stroke. Unscrew bolt 3 (fig. 7.21) distributor mounts. Mark the position of the rotor relative to the distributor housing. Before installing the distributor, make sure that the piston of the first cylinder is at TDC of the compression stroke. Check the cam angle using a device on a stand or the gap between the contacts using a feeler gauge.
Install the distributor in place in accordance with the position of the rotor before removal. Connect the wires in the order shown on fig. 7.30, and battery cables. Set the ignition timing as described below.