Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine

Piston Ring Grooves

Piston ring groove 1
Repair size 1 1.54 - 1.56mm (0.0606 - 0.0614 in)

Piston ring groove 2
Repair size 1 1.76 - 1.77mm (0.0692 - 0.0696 in)

Piston ring groove 3
Repair size 1 3.00 - 3.02mm (0.1181 - 0.1188 in)

Vertical clearance of piston rings (Repair size 2)

Groove 1 0.20 - 0.40mm (0.0078 - 0.0157 in)
Groove 2 0.20 - 0.40mm (0.0078 - 0.0157 in)
Groove 3 0.20 - 0.45mm (0.0177 - 0.0157 in)

End Gap of piston rings (Repair size 2)

Groove 1 0.015 - 0.050mm (0.0005 - 0.0019 in)
Groove 2 0.020 - 0.040mm (0.0007 - 0.0015 in)
Groove 3 0.010 - 0.045mm (0.0003 - 0.0017 in)