Models with EZL type system
Note: Unlike the TSZ contactless system, which is interrupted by a sensor inside the distributor, the EZL ignition system is switched exclusively by a position sensor on the crankshaft - the distributor's only function is to direct high voltage to the spark plugs. Therefore, the basic ignition timing settings cannot be changed by rotating the distributor housing. No ignition timing setting is required when installing the distributor.
Removal
1. Disconnect the negative battery terminal.
2. Loosen the mounting screws and remove the distributor cap and move it to the side.
3. Turn the crankshaft so that the piston of cylinder 1 is set to the TDC position, as described in Chapter 2A or 2B, depending on the engine type. After this, if you do not turn the crankshaft with the distributor removed from the cylinder block, you can remove and install the distributor without losing its alignment.
4. Loosen and remove the clamp bolt, then remove the distributor housing from the cylinder block (see fig. 4.4).
Fig. 4.4. Loosening the distributor clamp bolt
5. Check the condition of the oil seal ring (where it is installed) — if damage is detected or if oil leaks are detected, replace the ring.
Installation
6. If the crankshaft has not turned from the TDC position of the piston of the 1st cylinder, then perform the actions starting from step 8. If the position of the crankshaft has changed, perform the actions starting from step 7.
7. Remove the spark plug of cylinder 1 as described in Chapter 1 A. Block the spark plug hole with your thumb, then turn the crankshaft (as described in the "Removal" section) until the following conditions are met: (see fig. 4.7).
Fig. 4.7. The TDC position mark on the crankshaft vibration damper is aligned with the indicator (shown by arrow) on the camshaft drive chain housing
- a) There should be pressure felt in the spark plug hole.
- b) The TDC mark on the crankshaft vibration damper must exactly match the pointer on the camshaft drive chain housing (see section 'Removal').
8. Insert the distributor into the crankcase and align the end of the distributor shaft with the drive gear so that:
- a) When the distributor body is flush with the support flange, the runner will point directly at the alignment mark on the distributor body (temporarily remove the runner, then remove the plastic tap to see the alignment mark) (see Fig. 4.8, a, b).
- b) The clamp bolt hole on the support flange is aligned with the center of the elongated hole on the distributor base. Rotate the distributor body to achieve this condition.
Fig. 4.8, a. Remove the plastic screen...
Fig. 4.8, b....to check that the runner points to the installation mark
Note: The distributor pinion gear is helically cut, so the rotor will rotate when the distributor shaft is installed. To compensate for this, rotate the rotor to the timing mark before installing the distributor shaft.
9. Install the distributor clamp bolt and tighten securely.
10. Install the distributor cap, then insert and tighten the mounting screws.
Models with TSZ ignition system
Note: Unlike the EZL contactless ignition system which is interrupted by the crankshaft position sensor, the TSZ type ignition system is interrupted by a sensor fixed inside the distributor. Therefore, the basic ignition timing setting should be checked and adjusted after removing and installing the distributor.
Removal
11. Perform the actions described in paragraphs 1-3 inclusive.
12. Disconnect the hose from the vacuum unit on the side of the distributor housing.
13. Disconnect the distributor sensor wire from the connector side on the side of the distributor housing.
14. Mark the relative positions between the distributor base and the support flange on the engine using paint or a scraper. These marks will help you install the distributor correctly.
15. Loosen and remove the clamp bolt, then remove the distributor from the crankcase (see fig. 4.15).
Fig. 4.15. Distributor clamp bolt (shown by arrow)
16. Check the condition of the oil seal ring (where it is installed) — if damage or oil leaks are detected, replace the ring.
Installation
17. Perform the actions described in points 6-10, inclusive (see fig. 4.17). To set the approximate ignition timing, use the marks made on the base of the distributor housing and the support flange during removal.
Fig. 4.17. The slider points directly to the alignment mark (shown by arrow) on the distributor body
18. Connect the vacuum hose and sensor wire.
19. When finished, check and, if necessary, adjust the ignition timing, following the description in paragraph 6.