Honda Workshop Service and Repair Manuals

Piston Ring: Specifications

DIMENSIONS

Ring End Gap

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Standard (New) .................................................................................................................................................  0.25-0.35 mm (0.010-0.014 inch0
Service Limit .......................................................................................................................................................................  0.60 mm (0.024 inch)

Second:

Standard (New) .................................................................................................................................................  0.60-0.75 mm (0.024-0.030 inch)
Service Limit .......................................................................................................................................................................  0.90 mm (0.035 inch)

Oil:

Standard (New) [1] ............................................................................................................................................  0.20-0.70 mm (0.008-0.028 inch)
Standard (New) [2] ............................................................................................................................................  0.20-0.50 mm (0.008-0.020 inch)
Service Limit [1] ..................................................................................................................................................................  0.80 mm (0.031 inch)
Service Limit [2] ..................................................................................................................................................................  0.60 mm (0.024 inch)

Ring-To-Groove Clearance

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Standard (New) .........................................................................................................................................  0.055-0.085 mm (0.0022-0.0033 inch)
Service Limit .......................................................................................................................................................................  0.13 mm (0.005 inch)

Second:

Standard (New) ...........................................................................................................................................  0.040-0.070 mm 0.0016-0.0028 inch)
Service Limit .......................................................................................................................................................................  0.13 mm (0.005 inch)

[1] RIKEN manufactured piston ring.
[2] TEIKOKU PISTON RING manufactured piston ring.