Engine Break-In Procedure - Westerbeke 12C- TWO Operator's Manual

ENGINE BREAK-IN PROCEDURE
DESCRIPTION
Altliough your engine
has
experienced a minimum of one
hour of test operations at the factory to make sure accurate
assembly procedures were followed and that the engine oper-
ated properly, a break-in time is required. The service life of
your engine is dependent upon how the engine is operated
. and serviced during its initial 50 hours of use.
Breaking-in a new engine basically involves seating the pis-
ton rings to the cylinder walls. Excessive oil consumption
and smoky operation indicate that the cylinder walls are
scored, which is caused by overloading the engine during the
break-in period.
Your new engine requires approximately 50 hours of initial
conditioning operation to break in each moving part in order
to maximize the performance and service life of the engine.
Pelionn this conditioning carefully, keeping in mind the fol-
lowing:
1. Start the engine according to the STARTING PROCE-
DURE section. Run the engine at fast idle while checking
that all systems (raw water pump, oil pressure, battery
charging) are functioning.
2. Allow the engine to warm up (preferably by running at
fast idle) until the water temperature gauge moves into
the 130 - 140'F (55 - 60'C) range.
3. While using the vessel, run the engine at various engine
speeds for the first 25 hours. Avoid prolonged pedods of
idling.
4. Avoid rapid .acceleration, especially with a
cold
engine.
5. Use caution not to overload the engine. The presence of a
grey or black exhaust and the inability of the engine to
reach its full rated speed are signs ofan overload.
,6. During the next 25 hours, the engine may be operated at
vlUying engine speeds, with short runs at full rated rpm.
Avoid prolonged idling during this break-in pedod.
CHECKLIST
D
Moniior the control panel gauges.
D .
Check for leaks of fuel and engine oil.
D
Check for abnonnal noise such as knocking, friction,
vibration and blow-back sounds.
D
Confirm exhaust smoke:
When the engine is cold - white smoke.
When the engine is wann - almost smokeless.
When ihe engine is overloaded - some black smoke and soot.
NOTE: See the TRANSMISSION section of this manual for
break-in information on your transmission.
Engines & Generators
10 .