Teledyne Continental Motors, Inc.
TM
Maintenance
Inspections
2.
Cracks are frequently accompanied by oil seepage, investigate oil leaks as possible
crack indications. If oil leaks are the result of damaged or improperly sealed gaskets,
replace the questionable gaskets according to the overhaul instructions. Refer to
crankcase repair procedures in Section 10-10.
Figure 7-22.
Crankcase Critical (White) and Non-Critical (Shaded) Areas
3.
Inspect the breather for cracks and dents. Inspect tube ends for scoring and
eccentricity that may cause a bad seal and oil leakage. Discard and replace defective
components.
4.
Inspect engine mount brackets for cracks, dents and wear. Inspect hardware for
distorted, stripped threads and damaged wrench flats. Discard and replace defective
components.
5.
Inspect the crankcase backbone seam for signs of oil leaks. Oil leakage in this area
may be caused by under-torqued through bolts. Follow instructions in the “Cylinder
Torque Procedure” in Appendix B.
WARNING
Use of silicone RTV sealant or any other sealant between the
cylinder base flange and the crankcase mounting deck will
cause a loss of torque and severely damage the crankcase.
6.
Inspect the cylinder-to-crankcase mounting deck; verify there are no signs of RTV
Sealant used on the cylinder deck flange. If RTV Sealant is found, refer to section 7-
3.8.4 “Cylinder-to-Crankcase Mounting Deck Inspection” for corrective action.
IOF-550 Permold Series Engine Maintenance Manual
7-35
1 April 2007