Continental Motors GTSIO-520 SERIES Operator's Manual page 37

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e. Look for oil leaks at all visible engine connections and for
drippings in the lower cowling.
f. Inspect ignition cables for damage or looseness of parts,
particularly at magneto and spark plug terminals.
g. Inspect all visible attaching parts, instrument connections,
plugs and electrical wiring for unsafe conditions.
h. Visually inspect exhaust system for leaks, cracks and loose
attaching hardware. Visually inspect waste-gate valve actuator and
pressure controller.
i. Check fuel supply for proper grade (100/130 green) and oil
guage rod for oil supply level. Make sure aircraft is in proper attitude
when checking oi1.Replenish if required.
j.
Check engine instruments or gauges for possible irregularities
in performance at various power settings.
3.
50-HOUR INSPECTION
a. Change filter or clean oil screen. Change oil if full flow filter
is not used. (See Service Bulletin M73-3, Rev. 1.)
RECOMMENDED VISCOSITY AMB1ENT AIR TEMPERATURE
SAE-50 Above 40°F.
SAE-30
10W30 (Opt.)
Below 40°F.
Below 40°F.
When ambient temperature is approximately at the dividing line of
the above temperature ranges, use the lighter oil.
b. Remove and clean air filter with fresh cleaning solvent.
Inspect for damage. Inspect air scoop and filter retaining parts for
cracks and other damage. Replace damaged parts as required. Dip
reusable air filter in clean engine oil and allow to drain overnight
before reinstalling.
c. Make sure fuel shut-off valve is in "OFF" position. Remove
fuel manifold valve screen, fuel control valve screen or fuel supply
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