Lycoming AIO-360 Series, Operator'S Manual, Page: 127 / 155

SECTION 6 LYCOMING OPERATOR’S MANUAL
TROUBLE-SHOOTING O-360 AND ASSOCIATED MODELS
TROUBLE PROBABLE CAUSE REMEDY
High Oil Temperature (Cont.) Low grade of oil Replace with oil conforming to
specifications.
Clogged oil lines or strainers Remove and clean oil strainers.
Excessive blow-by Usually caused by worn or stuck
rings.
Defective temperature gage Replace gage.
Excessive Oil Consumption Low grade of oil Fill tankwith oil conforming to
specifications.
Failing or failed bearings Checksump for metal particles.
Worn piston rings Install new rings.
Incorrect installation of piston Install new rings.
rings
Failure of rings to seat (new Use mineral base oil. Climb to
nitrided cylinders) cruise altitude at full power and
operate at 75% cruise power
setting until oil consumption
stabilizes.
2. TROUBLE-SHOOTING – TURBOCHARGER.
TROUBLE PROBABLE CAUSE REMEDY
Excessive Noise or Vibration Improper bearing lubrication Supply required oil pressure.
Clean or replace oil line;clean
oil strainer. If trouble persists,
overhaul turbocharger.
Leakin engine intake or exhaust Tighten loose connections or
manifold replace manifold gaskets as
necessary.
Dirty impeller blades Disassemble and clean.
Engine Will Not Deliver Clogged manifold system Clear all ducting.
Rated Power
Foreign material lodged in Disassemble and clean.
compressor impeller or turbine
6-4