Figure 7-25. Percent Dilution Versus Temperature for Grade 1100 Oil
(c) Connect preoiler to preoiling fitting.
(d) Rotate engine with starter and commence
preoiling until oil is flowing freely from sump plug holes
and pressure Is indicated on oil pressure gauge in
(e) Cease operation and replace sump plugs.
(f) Remove rocker box covers from number one
cylinder or both top covers on double row engines and
continue preoiling until oil is obtained from all rocker
arms that have been removed.
(g) Disconnect preoiler and reinstall all parts
Newly installed engines will be given
an initial start as soon as possible,
but not later than 4 hours after
preoiling has been accomplished.
When any period of time in excess of
4 hours has elapsed since engine
was preoiled, complete preoiling
initial start of engine.
b Depreservation Run. The depreservation run
eliminates the necessity of removing or draining Intake
pipes prior to installation of engine in the aircraft.