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:
Lifting
CAUTION: Do not allow the lift adapters to contact the steering
linkage, suspension arms,
stabilizer arms, or to compress the lower suspension arm stabilizer bar
insulator (5493).
Damage to the suspension, exhaust and steering linkage components may occur i ...
Pinpoint Tests
CAUTION: Before removing and installing the GEM or its connectors,
disconnect the
battery. Failure to follow this caution will result in the GEM storing many
erroneous DTCs and it
may exhibit erratic operation after installation.
CAUTION: Be careful when pr ...
Cleaning the engine
Engines are more efficient when they are clean because grease and dirt
buildup keep the engine warmer than normal.
When washing:
• Take care when using a power washer to clean the engine. The
high-pressure fluid could penetrate the sealed parts and cause
da ...
