ENGINE DISASSEMBLY
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3.4. Breaking-In
3.4.1. Operation of a new engine (Breaking-In)
Because the sliding surfaces of a new engine are not lapped enough, the oil film can be destroyed easily by
overload or overspeed and the engine life-time may be shortened.
Therefore the following things must be obeyed by all means.
Up to the first 1,000km(50 hours)
z
Engine should be run at fast idling until the temperature of the engine becomes normal operating condition.
z
Overload or continuous high speed operation should be avoided.
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High speed operation with no load should be prevented.
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Abrupt start and stop of the engine should be avoided.
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Engine speed must be under 70% of its maximum speed.
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Maintenance and inspection must be accomplished thoroughly.
3.4.2. Check points for break-in
During the break-in (the initial running of the engine) period, be particularly observant as follows :
a) Check engine oil level frequently. Maintain oil level in the safe range, between the “
min.
” and “
max.
”
marks on oil level gauge.
NOTE :
If you have a problem getting a good oil level reading on oil level gauge 180°ý and reinsert for
check.
b) Watch the oil pressure warning lamp. If the lamp blinks, it may be the oil pick-up screen is not covered
with oil. Check oil level gauge oil to the oil pan, if required. Do not overfill. If level is correct and the status
still exists, see your DEALER for possible switch or oil pump and line malfunction.
NOTE :
Oil pressure will rise as RPM increases, and fall as RPM decreases. In addition, cold oil will
generally show higher oil pressure for any specific RPM than hot oil. Both of these conditions
reflect normal engine operation.
c) Watch the engine water temperature gauge and be sure there is proper water circulation. The water
temperature gauge needle will fluctuate if water level in expansion tank is too low. At the end of the
break-in period, remove break-in oil and replace the oil filter cartridge. Fill oil pan with recommended
engine oil. Refer to following table.
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