Re: Merc 4.3 MPI break in
RF,<br /><br />Did you get an Operations manual? Below is the Carbureted 20 hour break-in period (C&P from Merc manual). I have the MPI manual around here somwhere, but I am sure it is similar if not identical. . .<br /><br />20-Hour Break-In Period<br />IMPORTANT: The first 20 hours of operation is the engine break-in period. Correct break-in is essential<br />to obtain minimum oil consumption and maximum engine performance. During this break-in period, the<br />following rules must be observed:<br /> Do not operate below 1500 rpm for extended periods of time for first 10 hours. Shift into gear as soon as<br />possible after starting and advance throttle above 1500 rpm if conditions permit safe operation.<br /> Do not operate at one speed consistently for extended periods.<br /> Do not exceed 3/4 throttle during first 10 hours. During next 10 hours, occasional operation at full throttle is<br />permissible (5 minutes at a time maximum).<br /> Avoid full throttle acceleration from IDLE speed.<br /> Do not operate at full throttle until engine reaches normal operating temperature.<br /> Frequently check crankcase oil level. Add oil if needed. It is normal for oil consumption to be high during<br />break-in period.
<br />I'm just excited and trying to work out my impatience. I feel like a little kid the night before christmas!