Beechcraft Musketeer Sport III A23-19 Pilot Operating Handbook page 90

Section IV
Normai Procedures
BEECHCRAFT Sport III
Musketeer A23-19, 19A
Under very cold conditions, i t may be necessary to preheat
the engine prior to a start. Particular attention should be
given to the oil cooler and engine sump to ensure proper
preheat. A start with congealed oil in the system may pro-
duce an indication of normai pressure immediately after
the start, but then t he oil pressure may decrease when re-
sidual oil in the engine is pumped back with the con-
gealed oil in the sump. lf a n engine heater capable of heat-
ing both the engine sump and cooler is not available, the
oil should be drained while the engine is hot and stored in
a warm area until the next flight.
lf there is no oil pressure within the first 30 seconds of
running, or if oil pressure drops after a few minutes of
ground operation, shut down and check for broken oil
lines, oil cooler leaks or the possibility of congealed oil.
NOTE
lt is advisable to use external power for start-
ing in cold weather.
During warm-up, monitor engine temperatures closely,
since it is quite possible to exceed the cylinder head
temperaturelimit in trying to bring up the oil temperature.
During letdown and landing, give special attention to en-
gine temperatures, since the engine will have a tendency
toward overcooling.
ICING CONDITIONS
Flight in Known lcing Conditions Prohibited.
ENGINE BREAK-IN INFORMATION
See Systems Description section
4-14
October 1979