Fuel pressures and internal leaks (PIC) testing hydraulics

AD07.52-D-7000A

27.5.97

ENGINE 111.979 in MODEL 901, 902, 903, 904

D07.52-0017-06

Checking fuel pressure

03 Measuring cup

05 Pressure measuring instrument

103 589 00 21 00

06 T adapter

638 589 00 63 00

08 Fuel feed line separation point

D07.52-0010-01

Disconnect vacuum hose (1) to diaphragm pressure regulator

(test step 2)

	Location of components PEC gasoline injection and ignition system		GF07.52-D-0001-01A
	Tools for testing fuel pressure PEC hydraulics		AD07.52-D-2001-01A
	Disconnect fuel feed line at fuel line separation point and connect pressure measuring instrument with T adapter	 Before separating fuel line, disconnect fuel pump relay and actuate starter in order to relieve fuel pressure.
	Testing
1	Test fuel pressure at idle (with vacuum), hydraulic fuel pressure and inner PEC leakage		AD07.52-D-7000-01A
2	Fuel pressure at idle (without vacuum), test hydraulic fuel pressure and inner PEC leakage		AD07.52-D-7000-02A
3	Fuel system for inner leakage, test hydraulic fuel pressure and inner PEC leakage		AD07.52-D-7000-03A