4 cylinders + 6 cylinders 4 cylinders + 6 cylinders - Steyr Motors

03 FUEL SYSTEM SERVICE MANUAL MARINE ENGINES
Check:
Manual:
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)
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:
Result:
Start the engine, bring it to operating temperature, test the boat under operating
conditions and observe the glass bulb.
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 disengagement
of injection per cylinder one after the other.
(Disengagement methode of injection, refer to 03.14.02).
Assembly is done in reverse order.
Page FUEL SYSTEM - 38 Z001019/0_7_July 2012