New Engine Break-In And Operation; Engine Oil System - Cessna TR182 1979 Pilot Operating Handbook

CESSNA
MODELTR182
SECTION 7
AIRPLANE
&
SYSTEMS DESCRIPTIONS
indicator is equipped with a manually positioned reference pointer which
is especially useful for leaning during climb.
The carburetor air temperature gage is located on the left side of the
instrument panel below the gyros to help detect carburetor icing condi-
tions. The gage is marked in 5° increments from -30°Cto 30°C,and has a
yellow arc between -15°Cand 5°C which indicates the temperature range
most conductive to icing in the carburetor. With the heat available from
turbocharging, the gage needle will normally run off the scale on the high
end for most operations. A placard on the lower half of the gage reads:
KEEP NEEDLE OUTOF YELLOWARC DURINGPOSSIBLE CARBURE-
TOR ICING CONDITIONS.
NEW ENGINE BREAK-IN AND OPERATION
The engine underwent a run-in at the factory and is ready for the full
range of use.
It
is, however, suggested that cruising be accomplished at 25
inches Hg and 2400RPM until a total of 50 hours has accumulated or oil
consumption has stabilized. This will ensure proper seating of the rings.
The airplane is delivered from the factory with corrosion preventive
oil in the engine. If, during the first 25hours, oil must be added, use only
aviation grade straight mineral oil conforming to Specification No. MIL-
1,00082.
ENGINE Oil SYSTEM
Oil for engine lubrication, propeller governor operation, and turbo-
charger bearing lubrication is supplied from a sump on the bottom of the
engine. The capacity of the sump is 8 quarts (one additional quart is
contained in the engine oil filter). Oil is drawn from the sump through a
filter screen on the end of
a
pickup tube to the engine-driven oil pump. Oil
from the pump passes through an oil pressure screen, full-flow oil filter,
turbocharger bearings, a pressure relief valve at the rear of the right oil
gallery, and a thermostatically controlled remote oil cooler. Oil from the
remote oil cooler is then circulated to the left gallery and propeller
governor. The engine parts are then lubricated by oil from the galleries.
After lubricating the engine, the oil returns to the sump by gravity; oil
from the turbocharger bearings is returned to the sump by a scavenger
pump. The filter adapter in the full-flow oil filter is equipped with a bypass
valve which will cause lubricating oil to bypass the filter in the event the
filter becomes plugged, or the oil temperature is extremely cold.
An oil dipstick is located at the rear of the engine on the right side, and
an oil filler tube is on top of the crankcase near the front of the engine. The
dipstick and oil filler are accessible through doors on the engine cowling.
The engine should not be operated on less than five quarts of oil. To
1 October 1978
7-21