Yanmar 3TNV Servicing1
Yanmar 3TNV Servicing1
DESCRIPTION
- Provide labor & spare parts to carry out servicing on both port & starboard main engine brand
Yanmar model 3TNV88.
- Coordinated with person in charge, carry out walk around & visual inspection for any external
damage.
- Task performed as follows for both main engine;
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FUEL PUMP RECONDITION
Existing fuel pump removed out Fuel pump bench test calibration
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FUEL INJECTORS RECONDITION
- Remove valve cover & remove out injector & valve mechanism group.
- The fuel injectors were removed from the engine.
- A visual inspection showed no abnormalities from the original injector assembly operation.
- Proceed to service all fuel injector units.
- Dismantle fuel injectors, inspect wear & tear parts & replace new wear & tear parts.
- Calibrate injectors opening pressure on bench test.
- Reconditioned fuel injector units installed on engine with new seals.
Existing sea water pump removed out Inspected sea water pump installed
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COOLANT PUMP REPLACEMENT
Oil cooler core pressure test setup Pressure test to maximum 4.5 bar
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ELECTRIC STARTING MOTOR RECONDITION
Existing electric starting motor removed out Electric starting motor dismantled
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CHARGING ALTERNATOR RECONDITION
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MECHANICAL TUNE-UP
- Remove valve cover & remove out injector & valve mechanism group.
- Absence of unusual scuffing on reciprocating components.
- Perform valve lash setting.
- Clean valve cover from any foreign matter.
- Re-fit valve cover as it is conditions
SEA TRIAL
- On first attempt the engine was started at rated RPM and was run in for 10 Mins and during this
period all the parameters like pressure and temperature were monitored and all were found within
normal operating range.
- Load tested to maximum available load from vessel to Chief Engineer’s requirement. All the
parameters during the load trial were monitored. The parameters were found in working range.
- After the load test, a general inspection was carried out to confirm the proper lubrication, no
scuffing of internal reciprocating parts.
- The load trial has been performed in order to test engine performances to customer satisfaction.
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