DRAIN ENGINE OIL (Sheet 1 of 3)
TOOLS: 3/4 in. socket with 3/8 in. drive
10 in. extension with 1/2 in. drive
Torque wrench with 3/8 in. drive (0-200 lb-in) (0-23 N·m)
9/16 in. socket with 1/2 in. drive
3/4 in. socket with 1/2 in. drive
Container to catch oil (minimum 20 gal. capacity)
Sealing washer NAS1598-6V
Rags (Item 12, Appendix D)
Remove upper engine access cover (page 17-14)
Hold up valve seat (A) when removing
last screw (B) attaching valve seat (A)
to hull floor (C). Valve seat (A) is
heavy and can cause injury if it falls.
Using 3/4 inch socket, remove four screws
(A) and gasket (E) to hull floor (C).
While holding valve seat (A), use screwdriver
and pry valve seat (A) from hull floor (C).
Using putty knife, scrape gasket (E) from hull
floor (C) and valve seat (A).
Go on to Sheet 2