35

ENGINE MAINTENANCE

__After Engine Warm-up_

ADJUSTING IDLE RPM, ADJUSTING IGNITION TIMING AND CHECKING MIXTURE RATIO

Preparation

ADJUSTING INTAKE AND EXHAUST VALVE CLEARANCE

Adjustment should be madę while engine is warm but not running.

1.    Start engine and warm it up until water temperaturę indicator points to middle of gauge. Then turn off engine.

2.    Remove valve rocker cover.

3.    Rotate crankshaft.

4.    Set No. 1 cylinder in top dead center on its compression stroke, and adjust valve clearance

©,©, (D and ©.

5.    Set No. 4 cylinder in top dead center on its compression stroke and adjust valve clearance

(D, ®, (Z) and ®.

Exhaust

0.30 mm (0.012 in)    SMA498A

1)    Loosen valve rocker adjusting screw lock nut and turn adjusting screw until specified clearance is obtained.

2)    After adjustment, tighten lock nut and recheck clearance.

1.    Make surę that the following parts are in good order.

•    Ignition system.

•    Engine oil and coolant levels

•    Valve clearance

2.    Connect engine tachometer and timing light in their proper positions.

3.    Make surę that these switches and units are in the following positions.

•    Headlamp switch: OFF

•    Heater blower: OFF

4.    Check after the radiator cooling fan has stopped. If it is operating, wait until it stops.

5.    Apply parking brake and biock both front and rear wheels with chocks.

6.    When measuring "CO" percentage, insert probe morę than 40 cm (15.7 in) into taił pipę.

WARNING:

a.    Inspections should be carried out while shift lever is in "D" position on automatic transaxle equipped models and in "Neutral" on manuał transaxle equipped models.

b.    On automatic transaxle equipped models, racing the engine should be carried out while shift lever is in "N" or "P" position and brake pedał should be depressed.

c.    After adjustment has been madę, shift the lever to "N" or "P" position.