Piston Ring: Labor Times

	Standard Hours	Manufacturer Warranty Hours	Skill Level	Notes
Replace
One Cylinder	10.4	7.2	A	Includes: R&R Cylinder Head & Oil Pan, Hone Cylinder Walls And Plastigage Bearings.
Each Additional	0.8	0.5	A	Includes: R&R Cylinder Head & Oil Pan, Hone Cylinder Walls And Plastigage Bearings.
All Cylinders	12.8	8.6	A	Includes: R&R Cylinder Head & Oil Pan, Hone Cylinder Walls And Plastigage Bearings.
Note
With Compressed Natural Gas, Add	0.5	0.4	A
To Renew Main Bearings, Add	1.6	0.0	A
To Renew Piston, Pin or Connecting Rod, Add
One	0.2	0.0	A
Each Additional	0.1	0.0	A
All	0.5	0.0	A
To Grind Valves, Add	2.0	1.4	A
With AC, Add	0.5	0.3	A
To Renew Oil Pump, Add	0.9	0.0	A
To Clean Oil Pump Screen, Add	0.2	0.0	A
To Renew Timing Chain, Add	2.1	0.0	A
Tune-Up, Add	0.5	0.0	A