Page FUEL SYSTEM - 38
Z001019/0_7_July 2012
03 FUEL SYSTEM
SERVICE MANUAL MARINE ENGINES
Check:
Defective unit injector(s) is/are to be detected definitely by means of "manual injection
test methode"
(manual injection test methode, refer to 03.14.01)
Manual:
If during disengagement methode of injection of unit injectors a creaky noise is to
be heard and a solide resistance (pressure point) can be felt, check the tightening
torque of the unit injectors (03.02.02 - assembly item 11).
Then repeat check 3.
If a bubble formation appears during load operation, continue with check 3.
Check 3:
Start the engine, bring it to operating temperature, test the boat under operating
conditions and observe the glass bulb.
Result:
If it comes to bubble formation, search for the problem in the area of unit injectors.
Control:
Defective unit injector(s) is/are to be detected definitely by means of "Disengagement
methode of injection"
(manual injection test methode, refer to 03.14.01)
If there is still bubble formation, continue with check 4.
Check 4:
Test the engine in the operating state where bubble formation occurs, by disengage-
ment of injection per cylinder one after the other.
(Disengagement methode of injection, refer to 03.14.02).
Assembly is done in reverse order.
