Figure 14. Installing piston with piston ring compressor
(1) Remove carbon from piston by soaking in SD.
bosses. If pistons show signs of wavy ring lands or
Make certain that ring grooves are clean.
other damage, install new pistons (f below).
(2) Clean carbon from oil return holes in ring
c. Fitting Piston Pins. Check fit of piston pin in
grooves by running a drill throug the hole.
connecting rod, as shown in figure 15. The piston pin
should be a palm-push fitting piston at room
temperature (70° F.). Do not enlarge piston pin bores
inspect skirts and piston pin
unless oversize piston