Piston Ring: Labor Times

	Standard Hours	Manufacturer Warranty Hours	Skill Level	Notes
Replace	12.7	9.2	A	Includes: Remove Cylinder Top Ridge, Deglaze Cylinder Walls And Clean Carbon.
NOTE
With AC, Add	0.2	0.1	A
To R&R Main Bearings, Add
With Prerunner	6.6	0.0	A
To R&R Crankshaft, Add
With Prerunner	6.6	0.0	A
To R&R Oil Pump, Add
With Prerunner	4.1	0.0	A
To Clean Oil Pump Screen, Add	0.2	0.0	A
To R&R 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 R&R Connecting Rod Bearings, Add	0.7	0.4	A
To R&R Timing Chain, Add
No.1	4.5	0.0	A
No.2	4.7	0.0	A
To R&R Valves and/or Bushings, Add	11.2	8.0	A