Dodge RAM 1500 1998 Owner's Manual page 1437

9 - 214 ENGINE - 5.7L
PISTON RINGS (Continued)
(5) Measure the ring side clearance as shown (Fig.
14)make sure the feeler gauge fits snugly between
the ring land and the ring. Replace any ring not
within specification.
Fig. 14 Measuring Piston Ring Side Clearance
1 - FEELER GAUGE
(6) Rotate the ring around the piston, the ring
must rotate in the groove with out binding.
PISTON RING SPECIFICATION CHART
Ring Position
Clearance
Upper Ring 0.6715-
.0.7105mm
(0.0264- 0.0279
Intermediate Ring
(0.0214-0.0245
Ring Position
Upper Ring 0.23-0.38mm
(0.0090-0.0149
Intermediate Ring 0.35-0.60mm
(0.0137-0.0236
Oil Control Ring 0.015-0.66mm
(Steel Rail) (0.0059- 0.0259
Groove Maximum
Clearance
0.11mm
(0.004 in.)
in.)
0.5455- 0.10mm
0.6245mm
(0.004 in.)
in.)
Ring Gap Wear Limit
0.43mm
(0.017 in.)
in.)
0.74mm
(0.029 in.)
in.)
1.55mm
(0.061 in.)
in.)
(7) The No. 1 and No. 2 piston rings have a differ-
ent cross section. Ensure No. 2 ring is installed with
manufacturers I.D. mark (Dot) facing up, towards top
of the piston.
NOTE: Piston rings are installed in the following
order:
• Oil ring expander.
• Lower oil ring side rail.
• Upper oil ring side rail.
• No. 2 Intermediate piston ring.
• No. 1 Upper piston ring.
(8) Install the oil ring expander.
(9) Install upper side rail (Fig. 15) by placing one
end between the piston ring groove and the expander
ring. Hold end firmly and press down the portion to
be installed until side rail is in position. Repeat this
step for the lower side rail.
Fig. 15 SIDE RAIL - INSTALLATION
1 - SIDE RAIL END
DR