Incorrect fuel injection timing can cause poor engine performance.This instruction show you guide on how to check fuel injection timing for Perkins 800 series industry engine.
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Procedures:
Fuel injection timing (55 kW) ……………………. 3° BTC
Fuel injection timing (62 kW) ……………………. 6° BTC
Fuel injection timing (69 kW) ……………………. 5° BTC
1.Remove the valve mechanism cover. Rotate the crankshaft in the normal direction of the engine until the inlet valve of the No. 4 cylinder has just opened and the exhaust valve of the No. 4 cylinder has not completely closed.
2.The 62 kW engine is installed with a Water Cold Start Device (CSD). In order to ensure that the fuel injection pump timing is correct, follow the procedure below. See 2.a and 2.b.
a.Install a 10 mm shim (H) between the Lever shaft (A) and the piston (B) on the CSD (C).
b.Time the fuel injection pump to 6° BTC.
3.Align the TC mark on the crankshaft pulley with the pointer on the timing case.
4.Remove the plug (1) that is located at the center of the rear face of the fuel injection pump. Install the timing pin for the fuel injection with the dial indicator in order to measure the cam lift.
5.Rotate the crankshaft in the opposite direction of the engine until the reading on the dial gauge stabilizes at the bottom of the lift of the plunger in the pump. Set the dial indicator to zero.
6.Rotate the crankshaft in the normal direction of the engine until the 3° mark or the 6° mark on the crankshaft pulley is aligned with the pointer on the timing case.
7.Record the reading on the dial indicator. The reading should be 0.5 mm (0.0197 inch).
8.To adjust the timing of the fuel injection pump,loosen the flange nuts and move the pump in order to achieve a reading of 0.5 mm (0.0197 inch).
9.With the cam lift at 0.5 mm (0.0197 inch), secure the pump in position.
10.Remove the tooling from the rear of the fuel injection pump. Install the plug (1) into the rear of the fuel injection pump and tighten to 1.4 to 2.0 N·m (12.3910 to 17.7015 lb in).
11.Install the valve mechanism cover.
12.Eliminate all air from the fuel system.
More trouble repair case for Perkins,pls refer to:Perkins Trouble Repair
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