Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Piston Ring, Engine

Piston Rings
Piston ring end gap (top) 0.15-0.30 mm (0.0059-0.0118 in)
Piston ring end gap (intermediate) 0.15-0.30 mm (0.0059-0.0118 in)
Piston ring end gap (oil control) 0.15-0.30 mm (0.0059-0.0118 in)
Ring groove width (top) 1.520-1.540 mm (0.0598-0.0606 in)
Ring groove width (intermediate) 1.520-1.540 mm (0.0598-0.0606 in)
Ring groove width (oil control) 3.03-3.055 mm (0.1193-0.1203 in)
Piston ring width (top) 1.5 mm (0.05 in)
Piston ring width (intermediate) 1.5 mm (0.05 in)
Piston ring-to-groove clearance (top) 0.020-0.060 mm (0.0008-0.0024 in)
Piston ring-to-groove clearance (intermediate) 0.020-0.060 mm (0.0008-0.0023 in)
Piston ring-to-groove clearance (oil control) 0.030-0.070 mm (0.0012-0.0028 in)