Ford Fusion: Engine System - General Information / Piston Inspection. General Procedures
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.
Special Tool(s) /
General Equipment
Feeler Gauge
Cleaning
Clean the exhaust manifold using a suitable solvent. Use
a plastic scraping tool to clean the gasket sealing surfaces...
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:
Removal
Turn the ignition switch to the OFF position and apply the parking brake.
Remove the air cleaner.
Refer to: Air Cleaner (303-12A Intake Air Distribution and Filtering - 1.5L EcoBoost (118kW/160PS) – I4, Removal and Installation)...
Special Tool(s) /
General Equipment
Hot Air Gun
DISASSEMBLY
NOTE:
Removal steps in this procedure may contain installation details.
Remove the front bumper cover.
Refer to: Front Bumper Cover (501-19 Bumpers, Removal and Installation)...