ad0752d7000a

Fuel pressures and internal leaks (PIC) testing hydraulics

Type ad · topic 07.52 · version 0100 · 2003-06-06

Applies to: ENGINE 111.979 in MODEL 901, 902, 903, 904

Where it sits

Function group 1 Engine › 07 Mixture formation › 07.52 PEC-SFI fuel injection/ignition system — Series 901 · Series 902 · Series 903 · Series 904

Also applies to engines/gearboxes: 111 979

AD07.52-D-7000A

Fuel pressures and internal leaks (PIC) testing hydraulics

27.5.97

ENGINE 111.979 in MODEL 901, 902, 903, 904

Fuel pressures and internal leaks (PIC) testing hydraulics

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

Fuel pressures and internal leaks (PIC) testing hydraulics

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

Referenced documents