AUT 114 CYLINDER HEAD SERVICE LAB CONTRACT

Student’s name:____________________________

Date Initials

1	Visually inspect cylinder head(s) for cracks; check gasket surface areas for warpage and surface condition.
2	Check condition of all bolt holes, rocker arm studs, oil passages, coolant passages, and repair as necessary.
3	Inspect and test valve springs for squareness, pressure, and free height comparison; replace as needed.
4	Inspect valve spring retainers, locks, and valve grooves.
5	Replace valve stem seals.
6	Inspect valve guides for wear; check valve guide height and stem-to-guide clearance; recondition or replace as needed.
7	Resurface valves; perform necessary action.
8	Resurface valve seats; perform necessary action.
9	Check valve face-to-seat contact and valve seat concentricity (runout); service seats and valves as needed.
10	Check valve spring assembled height and valve stem height; service valve and spring assemblies as needed.
11	Inspect pushrods, rocker arms, rocker arm pivots and shafts for wear, bending, cracks, looseness, and blocked oil passages (orifices); perform necessary action.
12	Inspect hydraulic or mechanical lifters; replace as needed.
13	Adjust valves (mechanical or hydraulic lifters).
14	Inspect camshaft drives (including gear wear and backlash, sprocket and chain wear); replace as necessary.
16	Inspect camshaft for runout, journal wear and lobe wear.
17	Inspect and measure camshaft bearings for wear, damage, out-of-round, and alignment; determine necessary action.
18	Verify camshaft(s) timing according to manufacturer’s specifications and procedure.