Fin Stabilizer Installation - Lycoming IO-390-D Series Maintenance Manual

Fin Stabilizer Installation

NOTICE: Two different widths of fin stabilizers, 0.63 in. (16.00 mm) and 0.31 in. (7.87 mm) are
to be installed on each engine cylinder in the locations shown in Figure A-3.
1. Clean the fin stabilizers and cylinder fin areas with mineral spirits or equivalent to remove all
grease, dirt, and other unwanted materials.
2. Use compressed air to dry the stabilizers and fins.
3. Apply Dow Corning
4. Install the fin stabilizers in the locations shown in Figure A-5.
Figure A-3
Fin Stabilizer Locations
Appendix A
Page 294
® ®
Silastic 140 adhesive to the cylinder fins (Figure A-4).
IO-390-D Series Engine Maintenance Manual
IO-390-D Series Engine Maintenance Manual
Figure A-4
Apply Adhesive
Figure A-5
Fin Stabilizer Installed on Cylinder
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March 2020