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:
Principles of Operation
There are four main principles involved with the basic theory of
operation:
heat transfer
latent heat of vaporization
relative humidity
effects of pressure
Heat Transfer
If two substances of different temperature are placed near each other,
t ...
Component Tests
Pressure Test
1. Turn the engine OFF.
2. WARNING: Never remove the pressure relief cap under any conditions
while the
engine is operating. Failure to follow these instructions could result in damage
to the
cooling system or engine and/or personal injury. To ...
Latch - Front Seat Backrest
Removal
NOTE: The power seat backrest adjuster assembly must be installed as a
new unit. Repair of the
power seat backrest adjuster assembly components is not acceptable and
should not be attempted.
1. Remove the two screws and the seat backrest latch ...
