Ford Mustang (1999-2004) Service Manual: Valve - Seat Inspection
Valve and Seat Refacing Measurements
CAUTION: After grinding valves or valve seats, check valve clearance.
1. Check the valve head and seat.
- Check valve angles.
- Check margin width.
- Refer to the appropriate section in Group 303 for the procedure.
- Be sure margin width is within specification.
2. Inspect for abnormalities on the valve face and seat.
Valve -Seat Width
1. Measure the valve seat width. If necessary, grind the valve seat to specification.
- Measure the intake valve seat width.
- Measure the exhaust valve seat width.
- Recheck the valve spring installed length after the seats have been ground, and shim the valve springs as necessary to achieve the correct installed spring length.
- Refer to the appropriate section in Group 303 for the procedure.
Valve -Seat Runout
1. Use the Valve Seat Runout Gauge to check valve seat runout.
Valve Spring Strength
Special Tool(s)
Pressure Gauge, Valve/Clutch
Spring
303-006 (TOOL-6513-DD) or
equivalent
1. Use a Valve/Clutch Spring Pressure Gauge to check the valve spring for
correct strength ...
Cylinder Head - Distortion
Special Tool(s)
Straight Edge
303-D039 (D83L-4201-A) or
equivalent
1. Use a straight edge and a feeler gauge to inspect the cylinder head for
flatness. If the cylinder
head is disto ...
Other materials:
Engine (Removal)
Special Tool(s)
Special Tool(s)
Support Bracket, Engine
303-639
Spreader Bar
303-D089 (D93P-6001-A3)
Lifting Bracket Set, Engine
303-D074 (D91P-6001-A)
Removal
1. Remove the hood.
2. Remove the battery. For additi ...
Inspection and Verification
NOTE: Upon installation of a new GEM, the module must be
reconfigured. For additional information,
refer to Section.
1. The warning lamps are a GEM controlled system; refer to Section.
2. Verify the customer concern by operating the system in questio ...
Ignition Switch Lock Cylinder - Non-Functional
Removal and Installation
1. NOTE: Make sure the front wheels are in the straight-ahead
position.
Disconnect the battery ground cable (14301) and wait at least one minute to
allow the depletion
of the restraint system backup power supply.
2. WARNING: To avo ...