Lincoln Nautilus: Engine System - General Information / Piston Diameter. General Procedures
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
-
Measure the piston diameter 90 degrees from the piston
pin and down from the top of the piston to the point indicated.
Oil Pressure Test 2.7L EcoBoost & 3.3L Duratec & 5.0L Ti-VCT
NOTE:
It is necessary to disconnect the battery to avoid
setting any DTCs that could cause the PCM to command the oil pressure to
other than what should be observed from a correctly operating system
during the oil pressure test...
Inspection
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...
Other information:
Fuse Precautions
WARNING: Always disconnect the
battery before servicing high current fuses.
WARNING: To reduce risk of
electrical shock, always replace the cover
to the power distribution box before
reconnecting the battery or refilling fluid
reservoirs...
General Equipment
Dial indicator
Dial indicator fixture
NOTE:
Refer to the appropriate Section 303-01 for the specification.
Position the crankshaft to the rear of the cylinder block.
Zero the Dial Indicator Gauge with Holding Fixture...