DETROIT DIESEL 53
Piston and Piston Rings 1.6
upper half of the ring. Make sure the scraper edges are facing down (toward the bottom of the piston).
NOTE: The scraping edges of all oil control rings must face downward (toward
the bottom of the piston) for proper oil control.
3. Install the upper and lower halves of both oil control rings (non-turbocharged engines) as outlined above.
If there is a noticeable resistance during installation of the piston, check for an overlapped ring expander.
SEC. 1.6 Page 7