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: Labor Times

Standard HoursManufacturer Warranty HoursSkill LevelNotes
Replace
One Cylinder, Both Banks15.711.0AIncludes: R&I Cylinder Heads & Oil Pan, Hone Cylinder Walls And Plastigage Bearings.
All Cylinders18.813.6AIncludes: R&I Cylinder Heads & Oil Pan, Hone Cylinder Walls And Plastigage Bearings.
One Cylinder13.710.0AIncludes: R&I Cylinder Heads & Oil Pan, Hone Cylinder Walls And Plastigage Bearings.
NOTE
To Grind Valves, Add
One Bank2.60.0A
Both Banks5.00.0A
To Renew Connecting Rod Bearings, Add
Each0.10.0A
To Renew Piston, Pin or Connecting Rod, Add
One0.20.0A
Each Additional0.10.0A
All0.90.0A
To Renew Spark Plugs, Add0.50.0A