Valve: Labor Times

	Standard Hours	Manufacturer Warranty Hours	Skill Level	Notes
Resurface/Grind
Engine Model 420A	10.8	7.9	A	Includes: R&I Cylinder Head. Grind All Valves And Seats And Make All Necessary Adjustments.
Note
To Knurl Valve Guides, Add
Each	0.1	0.0	A
To Renew Valve Guides, Add
Each	0.2	0.0	A
To Ream Guide, Add	0.1	0.0	A
To Renew Timing Belt, Add	1.2	0.0	A
To Renew Camshaft, Add
One	0.2	0.0	A
Each Additional	0.1	0.0	A
With AC, Add	0.5	0.3	A