How to check timing

 How to check timing

Optical method

1. Set fuel rack to maximum

2. Open spill plug of pump and clean thoroughly

3. Turn engine 20 degree before TDC

4. Ensure no oil, put light on suction

5. Wear goggle, look through spill port

6. Turn until TDC

7. When light disappear, indicate start of injection

Oil overflow method

1. Stop fuel pump,

2. Fuel rack to max

3. Take out delivery pipe, puncture suction valve,

4. Turn to BDC, put DO, oil will flow out,

5. Turn towards TDC, flow will stop, record start of injection

6. Continue until overflow again, indicate end of injection

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