Cozy III
Pilot’s Operating Handbook Page 44
INSTRUMENTATION
♦ Cylinder Head Temp and Exhaust Gas Temp - These two
gauges should be accurately calibrated before use. This is
important! Dip the probes in hot oil and check the oil
temperature with a candy thermometer.
♦ Pitot & Static System - Check for leaks.
♦ Oil Pressure, Tachometer, Fuel Pressure - Verify proper
function during initial engine run-up.
POWERPLANT
♦ Clock the propeller for compression stroke at the 10 o'clock
position for proper hand-propping.
♦ Check propeller bolts for proper torque. Old style 4 or 5
laminate birch propellors should be torqued to 200 in./lbs.
(no more than 220). Multi-laminate (30+) Canadian maple
props can be torqued to higher values without crushing the
wood. RAF reports that they have gone as high as 300
in./lbs.
♦ Check propeller for absence of cracks and blades tracking
within 1/16".
♦ Check spinner for absence of cracks and wobble.
♦ Check engine mount bolts for security and safety.
♦ Check oil level.
♦ Check mixture, throttle, & carburetor heat controls for
security and function.
♦ Check magneto wiring. Be sure mags are cold when the
switches are off.
♦ Check that the magneto impulse coupling clicks at, or after
top dead center. Check if only one mag has an impulse
coupling. If so, the other should be off for hand-propping.
♦ Check that cowling baffles fit tightly all around the engine
and cowling. If not, you will have air leakage; insufficient
cooling and engine overheating will result.
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