00 Lubrication Section; General; Oil Pressure Adjustment; Oil Filter Adapter And Vernatherm Valve - Superior Vantage Engine O-360 SERIES Maintenance Manual

General

Maintenance of the O-360 and IO-360 series
Vantage Engine lubrication system is limited to
the procedures in this section.

Oil Pressure Adjustment

The adjustable oil pressure relief valve enables
the operator to maintain engine oil pressure
within specified limits. Oil pressure limits may be
found in the Installation and Operation Manual
(SVIOM01). Refer to Figure 72-50-00.1, Oil
System Schematic, for additional information.
Over time, normal wear of components in an
engine will eventually cause a gradual reduction
in oil pressure due to increased clearances.
If oil pressure under normal operating conditions
always exceeds the maximum or minimum
specified limits, adjust the oil pressure relief
valve as follows:
•
With the engine warmed up with oil
temperature above
running at approximately
observe the oil pressure gage reading.
•
If the pressure is above maximum or below
minimum specified limits, stop the engine.
Turn the adjusting screw using either a
flathead screwdriver or a 9/16-inch box
wrench, outward
decrease pressure or inward (clockwise) to
increase pressure. Repeat pressure check
above.
•
If unable to achieve proper oil pressure by
screw adjustment, changing the valve spring
may be required. There are two springs
available, see table below. Approximately a
10 psi difference in oil pressure should be
indicated when changing springs.
•
Remove oil pressure relief valve. Remove
and replace spring from cavity of valve with
lower or higher
appropriate.
© February 2007 Superior Air Parts Inc.
Maintenance Manual
O-360 and IO-360 Series Engines
LUBRICATION SECTION
180°F (82°C) and
2000 RPM,
(counter-clockwise) to
pressure spring as
•
Re-install, torque and safety wire oil pressure
relief valve.
above.
Table 72-50-00.1
Oil Pressure Springs
Part Number (color)
SL68668 (purple)
SL61084 (clear)

Oil Filter Adapter and Vernatherm Valve

The spin-on oil filter used on the Vantage engine
uses an integral bypass type oil filter with ¾" x 16
thread. The integral bypass insures an oil supply
even in the case of complete filter fouling.
See Servicing section for oil filter part numbers
and the 50 Hour Inspection of Scheduled
Inspection and
instructions on changing the oil filter.
The oil filter adapter allows for a variety of oil
filter orientations and locations to be selected
based on airframe manufacturer's installation
requirements. Installed into the oil filter adapter
is the vernatherm oil temperature control valve.
This valve routes oil to the oil cooler when oil
temperature exceeds 185°F (85°).
Figure 72-50-00.2 below.
If high, low, or erratic oil temperature is indicated,
the vernatherm valve may not be functioning
properly. Proper functioning of the vernatherm
can be verified by removing the valve from the
adapter, cleaning and putting into a container of
water and bringing the water temperature up to
near boiling. A thermometer should be used to
determine temperature. The valve should open
at approximately 185°F (85°C) (boiling point is
212°F (100°C)).
If valve is not working properly, replace with new
SL53E19600 valve assembly, which includes a
new crush gasket.
safety wire to adapter.
1
Repeat oil pressure check
Description
lower pressure
higher pressure
Maintenance section
Refer to
Torque to 300 in-lb and
72-50-00
Lubrication Section
for