Ford Mustang (1999-2004) Service Manual: Piston Inspection
Special Tool(s)
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Scraper, Piston Ring Groove 303-D033 (D81L-6002-D) or equivalent |
CAUTION: Do not use a caustic cleaning solution or a wire brush to clean the pistons or damage can occur.
1. Clean and inspect the (1) ring lands, (2) skirts, (3) pin bosses, and the (4) tops of the pistons. If wear marks, scores or glazing is found on the piston skirt, check for a bent or twisted connecting rod.

2. Use the Piston Ring Groove Scraper to clean the piston ring grooves.
- Make sure the oil ring holes are clean.

Crankshaft - Connecting Rod Journal Taper, Out of Round
1. Measure the crankshaft connecting rod journal diameters in two
directions perpendicular to one
another at each end of the connecting rod journal. The difference in the
measurements from
one e ...
Piston - Pin to Bore Diameter
1. WARNING: Cover the end of the pin bore with a hand or shop rag when
removing
the retainer ring, since it has a tendency to spring out. Wear eye protection.
NOTE: Piston and piston pins are a matc ...
Other materials:
Switch - Key-In-Ignition Warning
Removal
1. Remove the ignition switch lock cylinder.
1. Insert the ignition key and turn to the RUN position.
2. Insert a punch in the access hole of the steering column and
press the release tab while
pulling out the ignition switch lock cy ...
Valve Cover LH
Material
Item
Specification
Silicone Gasket and Sealant
F7AZ-19554-EA or equivalent
WSE-M4G323-A4
Removal and Installation
1. Position the oil level tube (6754) out of the way.
2. Disconnect the breather tube.
3. Separate the engine wir ...
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.
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