Yukon 4WD V8-6.5L DSL Turbo VIN S (1997)
10. Measure the piston ring end gap.
11. Measure all rings in their respective cylinders.
12. Measure for ring clearance, using a feeler gauge.
13. Inspect the ring fit using the following procedure:
a. Fit each second compression ring to the piston on which it is going to be used.
b. Slip the outer surface of the second compression ring into the respective piston ring groove in order to make sure the ring does not bind. If the
ring groove causes binding, dress the groove with a fine cut file. Replace distorted rings.
14. The oil ring is a two-piece ring, consisting of an expander and a scraper ring.
a. Install the oil expansion ring in the oil ring groove.
b. Install the oil ring over the oil expansion ring.
NOTE:
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When installing the compression rings, ensure that the marked side is facing the top of the piston.
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The top compression ring is a keystone style ring.
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While assembling the rings onto the piston, rotate the rings to check for binding.
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If binding occurs, inspect the ring grooves for dirt or damage, such as nicks caused by improper Installation.
15. Install the second compression ring.
16. Install the top compression ring.
