Page COOLING SYSTEM - 38 Z001019/0_6_July 2008
SERVICE MANUAL MARINE ENGINES
05 COOLING SYSTEM
05.12 CHECKS
05.12.01 Check closed engine cooling system
for air
This check is for determination and retrieval of an inexplicable
coolant loss.
Procedure: Use special tool SMO: VR00147/0 by using
enclosed instruction.
Conclusion: Gas entry (combustion pressure) in the cooling
system.
Control works: Check tightening torque of unit injectors
(03.02.02 "ASSEMBLY", item 11) and repeat
check.
NOTE: If there is no gas entry, coolant loss is
eliminated.
If there is still gas entry, refer to 03.14.02, to
"disengagement methode of injection" this methode
can help to detect a possible transfer of combustion
gases into the water jacket.
NOTE: If the defective cylinder is detected through
the disconnection method and bubble formation and/
or coolant loss stops, the monoblock is to be replaced.
ToC
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