🔍 Key Concepts

• proper method for measuring piston ring end gap • cylinder liner wear pattern (more wear at certain levels) • importance of squaring the ring in the bore for accurate measurement

💭 Think About

• Think about where the cylinder wears the most and where it remains closest to original diameter. • Consider how you would position the new ring so that it sits straight and level in the liner when using feeler gages. • Ask yourself which option would give you the most accurate indication of the ring gap in normal operating position.

✅ Before You Answer

• Verify where a cylinder liner typically has the least wear in service. • Confirm that the ring must be square in the bore before using feeler gages. • Eliminate any choice that depends on comparing with old, worn parts instead of the cylinder itself.