Mercury D2.8L D-Tronic Specifications Page 63

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ON THE WATER
SECTION 3
9CMD-4081850 / 90-860094030 SEPTEMBER 2003 Page 55
CD608
Sterndrive Unit 10-Hour Break-In Period
It is especially important that the following procedure be used on new sterndrive units. This
break-in procedure allows the proper seating of drive unit gears and related components,
which greatly reduces the likelihood of problems.
1. Avoid full throttle starts.
2. Do not operate at any one constant speed for extended periods of time.
3. Do not exceed 75 percent of full throttle during the first 5 hours. During the next 5 hours,
operate at intermittent full throttle.
4. Drive unit should be shifted into forward gear a minimum of 10 times during break-in,
with run-in time at moderate rpm after each shift.
0041 w / change that added last bullet on 20 hour from CE11
20-Hour Break-In Period
IMPORTANT: The first 20 hours of operation is the engine break-in period. Correct
break-in is essential to obtain minimum oil consumption and maximum engine
performance. During this break-in period, the following rules must be observed:
Do not operate below 1500 rpm for extended periods of time for the first 10 hours.
Shift into gear as soon as possible after starting and advance the throttle above 1500
rpm if conditions permit safe operation.
Do not operate at one speed consistently for extended periods.
Do not exceed 3/4 throttle during the first 10 hours. During the next 10 hours,
occasional operation at full throttle is permissible (5 minutes at a time maximum).
Avoid full throttle acceleration from IDLE speed.
Do not operate at full throttle until the engine reaches normal operating temperature.
Frequently check engine oil level. Add oil as needed. It is normal for oil consumption
to be high during the break-in period.
AT END OF 20-HOUR break-in period, remove break-in oil and replace oil filter. Fill
the engine with the correct grade and viscosity oil.
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