Cylinder Break-In Procedures - Superior Vantage Engine O-360 SERIES Maintenance Manual

Cylinder Break-In Procedures

This section provides the Break-In Procedures
to achieve satisfactory ring seating and long
cylinder life. After top overhaul or major engine
overhaul, break-in is critical. Standard aviation
shop tools are required. The aircraft can be a
suitable test stand for running-in cylinders.
NOTE: Refer to the engine warranty. Violation
of these procedures will void the
engine's warranty.
WARNING: OPERATION OF A DEFECTIVE
ENGINE WITHOUT
EXAMINATION CAN
DAMAGE TO A DISABLED COMPONENT
AND POSSIBLE INJURY TO PERSONNEL.
MAKE SURE THOROUGH INSPECTION AND
TROUBLESHOOTING
ACCOMPLISHED. THIS WILL HELP TO
PREVENT INJURIES
AND/OR DAMAGE TO THE EQUIPMENT.
Prior to Break-In Start-Up
•
Engine oil sump should be filled with 100%
straight weight mineral oil. Use MIL-L-6082,
specific grade depending
temperature. Refer to Servicing section for
fluid requirements.
•
Engine must be pre-oiled and oil pressure
obtained prior to start-up.
•
To pre-oil an engine, do the following:
1. Attach pressure-oiling equipment to one
end of the main galley and force oil
through the galley at 35 psi until oil flows
from the opposite galley with the plug
removed from the front end of the
opposite galley.
2. Engine baffles and seals must be in
good condition and properly installed.
3. Verify accuracy of instruments required
for engine operation.
An alternate method of pre-oiling the engine
is as follows:
1. Disconnect ignition system, and ground
P-leads and remove top spark
from all four cylinders.
2. Using starter switch, engage starter to
rotate engine for 30 seconds or until 20
psi oil pressure is indicated.
© February 2007 Superior Air Parts Inc.
Maintenance Manual
O-360 and IO-360 Series Engines
A PRELIMINARY
CAUSE FURTHER
PROCEDURES ARE
TO PERSONNEL
on ambient
plugs
3. If 30 seconds expires prior to 20 psi
being indicated, let starter cool for 1
minute and repeat previous step.
4. When 20 psi is achieved, disengage
starter.
5. Re-install spark
harness and disconnect P-lead ground.
CAUTION: BREAK-IN OF AN ENGINE IN
FRIGID CONDITIONS
CYLINDER GLAZING AND FAILED BREAK-IN
DUE TO LOW OIL TEMPERATURE.
RECOMMENDED THAT OIL TEMPERATURE
BE MAINTAINED BETWEEN 180° AND 190°F
(82° AND 92°C).
Break-In Ground Run
•
Flight propeller may be used if test club is
not available.
•
Head aircraft into the wind.
•
Start engine and observe oil pressure. Oil
pressure should be indicated within 30
seconds. If this does not occur, shut down
engine and determine cause.
•
Run engine just long enough to confirm all
components are properly adjusted and
secured. There must be no fuel and/or oil
leaks.
•
Install cowling.
•
Operate engine at 1000 -1200 RPM until oil
has reached
temperature 120 °F (49°C).
•
Check magneto drop at 1700 RPM.
•
If engine is equipped with a controllable
pitch propeller, cycle only to a 100 RPM
drop.
•
Shut down engine and check for fuel and/or
oil leaks and repair any discrepancies.
•
At no time should cylinder head temperature
be allowed
maximum cruise limit of 430°F (221°C).
10
plugs and ignition
CAN LEAD
minimum operating
to exceed recommended
72-30-00
Cylinder Section
TO
IT IS