3.18
ENGINE
4. Repeat procedure for second ring.
5. The oil control ring is a three piece design consisting of a
top and bottom steel rail and center expander section.
Remove the top rail first followed by the bottom rail, then
remove the expander. For installation, refer to Page 3.31.
Piston and Rod Inspection
1. Measure piston pin bore.
2. Measure piston pin O.D. Replace piston and/or piston pin
if out of tolerance.
3. Measure piston ring to groove clearance by placing the ring
in the ring land and measuring with a thickness gauge.
Replace piston and rings if ring–to–groove clearance
exceeds service limits.
4. Measure connecting rod small end ID.
Piston Pin Bore:
.9055- .9057
″ (23.001- 23.007 mm)
Piston Pin O.D.
.9053- .9065
″ (22.994- 23 mm)
Piston Pin Bore
Piston Pin Measurement Locations
Piston Ring-to-Groove Clearance
Top Ring Limit: .0059
″ (.15 mm)
Second Ring Limit: .0059
″ (.15 mm)
Small End I.D. :
Std: .9058- .9063
″ (23.007- 23.020 mm)
Piston
Ring
Feeler Gauge
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