Maintenance and Adjustments
Teledyne Continental Motors, Inc.
TM
9-12
IOF-240 Series Engine Maintenance Manual
29 November 2006
9-3.5. Oil Sample Collection
Generally, the oil sample can be collected at either of the following times:
•
During the oil change procedure, before any new oil is added
•
Between oil changes
The oil sample must be taken after the engine has been operated during a normal flight
profile (including normal cruise and maximum power settings) for at least 30 minutes at
normal engine operating temperature (see “Engine Specifications and Operating
Limits” in Chapter 2).
NOTE: Collect the oil sample within 30 minutes after shutting
down the engine.
Procedure
1.
Clean any dirt or debris from around the oil sump drain plug.
2.
Use the following sample collection devices:
a.
Sampling tube and/or funnel
b.
Sample vial
NOTE: The sampling tube, funnel, and sample vial must be clean
and free of any debris, foreign material, or residue for sample
integrity and accurate analysis.
3.
Collect 1 to 2 ounces (30 to 60 ml) of oil from one of the following sample collection
locations consistently:
a.
Midstream of the oil drain flow after 1/3 of the oil has been drained from the oil
sump
b.
From the oil fill port, at least 2 to 3 inches above the bottom of the oil sump
NOTE: Do not take an oil sample from the bottom of the oil sump
or the oil filter canister.
4.
Fill the oil sample tube or vial ¾ full and tighten the cap.
5.
Label the oil sample vial with the date the sample was taken, the engine it was taken
from, and the submitter’s name and company.
6.
Submit the oil sample to the same laboratory for the same analysis (unless otherwise
directed). TCM recommends the following laboratory:
Aviation Oil Analysis
101 West Mohave
P. O. Box 29074
Phoenix, AZ 85038