Lincoln Aviator: Engine System - General Information / General Procedures - Piston Inspection
Inspection
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NOTE:
Do not use a caustic cleaning solution or a wire brush to clean the pistons or damage can occur.
Clean and inspect the (1) ring lands, (2) pin bosses,
(3) skirts 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.
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NOTE:
Make sure the oil ring holes are clean.
Using a Piston Ring Groove Scraper, clean the piston ring grooves.
Check
Measure the piston diameter 90 degrees from the piston
pin and piston diameter (DN) height down from the top of the piston at
the point indicated...
Special Tool(s) /
General Equipment
Feeler Gauge
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
NOTE:
Use care when fitting piston rings to avoid possible damage to the piston ring or the cylinder bore...
Other information:
Overview
The 3.0L Gasoline Turbocharged Direct Injection (GTDI) (4V) is a V-6 engine with the following features:
Interference design engine
Dual overhead camshafts
Four valves per cylinder
Gasoline Turbocharged Direct Injection (GTDI)
Composite intake manifold
Aluminum cylinder heads
Compacted graphite iron cylinder block
Twin independent variable cam timing (Ti-VCT)
An electronic ignition system with 6 ignition coils
Continuous variable displacement oil pump
Engine Identification
For quick identification, refer to the safety certification decal...
Overview
NOTE:
This section only describes and diagnosis the Phone as a Key
system. In order for the Phone as a Key system to operate, the PATS system must be functioning correctly.
For more information about the PATS system Refer to: Passive Anti-Theft System (PATS) - System Operation and Component Description (419-01B Passive Anti-Theft System (PATS), Description and Operation)...