SsangYong Rexton. Service manual - part 452

SSANGYONG  Y200

1F3-28  DIESEL ENGINE CONTROLS

INJECTION NOZZLE TEST

Preceding Work: Removal of fuel injection nozzle

1 Fuel Injection Nozzle ........... New : 135 - 143 bar

............................................ Used : min. 120 bar

A Closed Spray = good
B Stringy Spray = poor

2 Tester
3 Valve

YAD1FBB0

DIESEL ENGINE CONTROLS  1F3-29

SSANGYONG  Y200

YAD1FBC0

YAD1FBD0

YAD1FBE0

Tools Required

000 589 14 27 00

Fuel  Injection Nozzle Tester

Notice: When testing the injection nozzle, do not place
your hand into the spray of a nozzle. The spray will
penetrate deep into the skin and destroy the tissue.

1. Connect the fuel injection nozzle to the fuel

injection nozzle tester 000 589 14 27 00.

2. Close the valve (3) and pump 5 times strongly.

3. Chatter test :

Slowly operate the hand lever at tester (approx. 1
stroke per second). The nozzle must spray with a
gentle chattering.

•

Poor

The spray pattern shows split, too wide and
stringy.

(Repair the fuel injection nozzle)

4. Spray pattern test :

Operate the hand lever at tester rapidly (approx.
2~3 strokes per second).

•

Good

The spray pattern shows closed and well
atomized.

SSANGYONG  Y200

1F3-30  DIESEL ENGINE CONTROLS

YAD1FBC0

5. Opening pressure test :

Open the valve (3) and slowly operate the hand
lever at tester (approx. 1 stroke / second) and
measure opening pressure.

Notice:  If out of standard, repair the injection
nozzle.

6. Leak test

Slowly operate the hand lever at the tester until
get a pressure of approx. 90 bar. Maintain this
pressure for more than 20 seconds and within this
period no drop of fuel should build up at the nozzle
tip.

New Nozzle

Used Nozzle

Difference Between Nozzles

135 - 143 bar

Min. 120 bar

Max. 5 bar

DIESEL ENGINE CONTROLS  1F3-31

SSANGYONG  Y200

CHECKING AND ADJUSTING START OF DELIVERY

Governor Impulse Method (RIV)

1 Fuel Injection Pump
2 Rl Sensor
3 Digital Testor

In order to obtain a measuring signal the sensor pins
must be moved past the pulse generators with a
minimum speed (idle speed). A measuring instrument
measures the time interval of the two impulses,
converting the result into an angular value which is
then indicated.

4 TDC Pluse Sender Unit
5 Battery

YAD1FBF0

In order to be able to register the relationship of the
injection pump relative to the engine two signals are
required.

•

TDC impulse from the crankshaft.

•

Governor impulse from the injection pump.

Both impulses are supplied by pulse generators.