5.2 Removing and Installing Distributor
Ignition timing must be checked and adjusted any time the distributor is disassembled or removed. See 4.1 Ignition Timing.
To remove:
| 1. | Rotate the engine by hand until the distributor rotor tip is aligned with the No. 1 cylinder Top Dead Center (TDC) mark on the distributor housing, as shown in Fig. 5-4 above. |
| 2. | Disconnect all electrical connections from the distributor. On GX and MZ engines, disconnect the vacuum line from the vacuum diaphragm. |
| 3. | Remove the distributor hold-down, and remove the distributor by pulling it straight out. Retrieve the sealing washer or O-ring from the bottom of the distributor. Cover the opening. |
NOTE-
On all except 16-valve engines, the distributor will want to rotate counterclockwise as the beveled drive gears disengage. Notice how far the distributor turns as it is removed, in order to reinstall it approximately the same way.
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To install:
| 1. | If the crankshaft has been turned since the distributor was removed, rotate the crankshaft so that the cylinder no. 1 is at TDC. If necessary, see ENGINE. |
| 2. | On all except 16-valve engines, align the oil pump drive shaft so that it is parallel to the crankshaft as shown in Fig. 5-5. Use a screwdriver to turn it if necessary. |
| Fig. 5-5. | Lug (arrow) on oil pump drive shaft aligned parallel to engine crankshaft. |
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| 3. | Using a new sealing washer or O-ring, install the distributor. Align the rotor with the distributor housing, as shown in Fig. 5-4 above. Be sure that the distributor housing is seated firmly and that the distributor shaft engages properly. |
NOTE-
The rotor will rotate as the beveled drive gears engage, so check for proper alignment after installation.
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NOTE-
On 16-valve engines, be sure that the distributor drive clutch on the distributor shaft is properly engaged with the notch in the camshaft.
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| 4. | Install the distributor hold-down and the distributor cap. Reconnect the electrical connections and, on GX and MZ engines, the vacuum line. |
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