CHECKING AND ADJUSTMENT
Connect a timing light to the engine following the manufacturer's instructions.
Connect a tachometer to the engine as previously outlined.
Fig. Fig. 1 Connecting the tachometer2S-E and 3S-FE engines
Fig. Fig. 2 Check-connector pin configuration2S-E and 3S-FE engines shown
Fig. Fig. 3 Timing marks2S-E and 3S-FE engines
The 2S-E and 3S-FE engines require the tachometer to be hooked up to the service connector wire coming out of the distributor. The other engines require that the tachometer be connected to the check connector. Since some tachometers are not compatible with this hookup, we recommend that you consult with the manufacturer before purchasing a certain type.
Fig. Fig. 4 Timing marks3S-GE and 3S-GTE engines
Fig. Fig. 5 Timing marks4A-FE engine
Fig. Fig. 6 Timing marks5S-FE engine
Start and run the engine at idle with the transaxle in
(neutral) on manual transaxles, or
(park) on automatic transaxles. Make sure the parking brake is securely set and the wheels are blocked.
Check the idle speed and adjust as required, using the proper procedures.
Fig. Fig. 7 Make sure the timing marks are clean and easy to read.
Open the lid on the check connector (a grey or black box attached to the front, left shock tower) and short the connector at terminals
Point the timing light at the timing marks. With the engine at idle, the timing mark on the crankshaft pulley should be aligned with the degree mark specified in the Tune-Up Specifications chart at the beginning of this section, or according to the values listed on the underhood emission control sticker.
If the timing is not as specified, loosen the pinch bolts at the base of the distributor and move the distributor to advance or retard the timing as required.
Stop the engine and tighten the pinch bolt to 9 ft. lbs. (13 Nm) on 2S-E, 3S-FE and the 1990 5S-FE engines, 14 ft. lbs. (19 Nm) on 4A-FE and 1991-93 5S-FE engines, or 29 ft. lbs. (39 Nm) on the 3S-GE and 3S-GTE engines. Start the engine and recheck the timing and the idle speed.
Remove the short the connector and close the lid.
Disconnect the timing light and the tachometer.