honda Workshop Repair Guides

Honda Workshop Service and Repair Manuals

Piston Ring, Engine|Specifications|Page 1805 > < Crankshaft and Piston Installation|Page 1801
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Piston Ring: Specifications

Piston 

Ring groove width

Top

Standard or New ....................................................................................................................................  1.240 - 1.250 mm (0.0488 - 0.0492 inch)
Service Limit .........................................................................................................................................................................  1.27 mm (0.05 inch)

Second

Standard or New ....................................................................................................................................  1.220 - 1.230 mm (0.0480 - 0.0484 inch)
Service Limit .......................................................................................................................................................................  1.25 mm (0.049 inch)

Oil

Standard or New ....................................................................................................................................  2.805 - 2.825 mm (0.1104 - 0.1112 inch)
Service Limit .......................................................................................................................................................................  2.85 mm (0.112 inch)

Piston ring 

Ring-to-groove clearance

Top

Standard or New ....................................................................................................................................  0.055 - 0.080 mm (0.0022 - 0.0031 inch)
Service Limit .......................................................................................................................................................................  0.15 mm (0.006 inch)

Second

Standard or New ....................................................................................................................................  0.030 - 0.055 mm (0.0012 - 0.0022 inch)
Service Limit .......................................................................................................................................................................  0.13 mm (0.005 inch)

Ring end gap

Top

Standard or New ............................................................................................................................................  0.20 - 0.35 mm (0.008 - 0.014 inch)
Service Limit .......................................................................................................................................................................  0.60 mm (0.024 inch)

Second

Standard or New ............................................................................................................................................  0.40 - 0.55 mm (0.016 - 0.022 inch)
Service Limit .......................................................................................................................................................................  0.70 mm (0.028 inch)

Oil

Standard or New ............................................................................................................................................  0.20 - 0.70 mm (0.008 - 0.028 inch)
Service Limit .......................................................................................................................................................................  0.80 mm (0.031 inch)

Piston Ring, Engine|Specifications|Page 1805 > < Crankshaft and Piston Installation|Page 1801