FIG. 1 is a perspective view of a portion of a portion of an internal combustion engine showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a right side elevation view thereof; and
FIG. 6 is a left side elevation view thereof.
FIG. 7 is a perspective view of a portion of an internal combustion engine according to a second embodiment of the present design;
FIG. 8 is a top plan view thereof;
FIG. 9 is a front elevation view thereof;
FIG. 10 is a rear elevation view thereof;
FIG. 11 is a right side elevation view thereof; and,
FIG. 12 is a left side elevation view thereof.
The broken lines shown in FIGS. 1-12 are for illustrative purposes only and form no part of the claimed design.