Remove
injector pipes from pump.
Install
Timing Gauge KM-29763 – to install Timing Gauge remove head plug from injection pump.
Depress probe of Timing Gauge inward approx. 2 mm.
Measure
Rotate crankshaft to 30° - 40° before top dead centre set Timing Gauge to zero.
Rotate crankshaft pulley slightly in both directions to check Timing Gauge indication is stable.
Rotate crankshaft pulley clockwise then check that Timing Gauge indicates 0.5 mm when appropriate timing mark is aligned with pointer on front cover.
- 4JA1T engine - 12° before top dead centre.
- 4JG2T engine - top dead centre.
If Timing Gauge indication is incorrect adjust mounting angle of injection pump.
Adjust
Loosen nut and adjusting bolts (1) of injection pump. Rotate pump as necessary clockwise to advance counter-clockwise to retard.
Tighten pump adjusting bolt - 19 Nm.
Remove
Timing Gauge.
Install
Head plug to injection pump - 17 Nm new copper washer.