Chevrolet 1988 Light Duty Truck Repair Manual page 340

6A-10 GENERAL ENGINE MECHANICAL
Figure 15— Installing the Piston Ring Snap Ring
(6.2 L Engines)
In sp ect (F ig u res 17)
Ring fit as follows:
1. Fit each com pression ring to the piston on
w hich it is going to be used.
2. Slip the outer surface of the top and second
com pression ring into the respective piston
ring groove (figure 17), to make sure that the
ring is free. If binding occurs at any point, the
cause should be determ ined. If binding is
c a u s e d by th e rin g g ro o v e , c o rr e c t by
depressing the groove with a fine cut file. If the
binding is caused by a distorted ring, check a
new ring.
* A ssem b le (F ig u res 4 and 5)
Tool Required:
J 25220 Ring Expander (or equivalent)
All com pression rings are marked on the upper side
of the ring. When installing the compression rings,
make sure the MARKED SIDE IS TOWARD THE
TOP OF THE PISTON.