REPAIR INSTRUCTIONS, PART 1
Page 163
Piston Ring Inspection and
Replacement
[212 NV]
OIL RING GROOVE SIDE CLEARANCE
INSPECTION
1. Using a thickness gauge, measure oil ring
groove side clearance.
210
Figure 210 — Side Clearance Measurement
a. Insert a new oil control ring in the
groove.
b. Insert a thickness gauge between the
ring and upper land of the groove.
c. Record the measurement and compare
the reading with the information in Fits
and Limits in the SPECIFICATIONS
section.
RING END GAP INSPECTION
1. Using an inverted piston, push a piston ring
into a cylinder sleeve making sure it is
squarely aligned.
2. Using thickness gauges, measure the gap
between the ring ends. Refer to Fits and
Limits in the SPECIFICATIONS section for
gap information.
3. Repeat steps 1 and 2 for each ring.
Do not file or grind chrome-plated piston rings.
This may cause the chrome to flake resulting in
ring failure. Failure to heed this caution may result
in severe engine damage.
1. Ring Groove Side Clearance
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