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Adjusting the injection timing in a 4s engine

Checking procedure: turn the flywheel and align the mark on the body with that of the plunger. The graduation on the flywheel pointed out by the flywheel pointer shows the current fuel injection timing. Flywheel index near tdc has 2 degree graduations from 0 to 30 degree.. rest places have 5 degree graduations.
Adjusting procedure: turn flywheel so that adjusting bolt comes to the lowermost position. loose the locknut and turn the flywheel to the required position of the indicator. turn the adjusting bolt so that the mark on the pump body align with that of the plunger.turn fly wheel and bring adjusting nut to lower most possible


position and lock the locking nut, by holding the adjusting bolt in the position with a wrench.
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