Special Tools and Supplies
Teledyne Continental Motors, Inc.
TM
3-14
IOF-550 Permold Series Engine Maintenance Manual
1 April 2007
FACTORY CALIBRATED ORIFICE
SPARK PLUG
THREADS (18mm)
DUST CAP
DUST CAP
Figure 3-3.
Master Orifice Tool
used with pressure tester E2A
The Master Orifice Tool restrictor orifice dimensions for these engines must be 0.040 inch
orifice diameter, 0.250 inch long with 60° approach angle. The airflow rate should be 120±5
cubic feet per hour at 30 psi differential pressure.
Figure 3-4.
Borescope (Autoscope ®)