Ford Explorer: Engine System - General Information / General Procedures - Piston Ring End Gap
Special Tool(s) /
General Equipment
Check
NOTE:
Refer to the appropriate Section 303-01 for the specification.
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NOTE:
Use care when fitting piston rings to avoid possible damage to the piston ring or the cylinder bore.
NOTE:
Piston rings should not be transferred from one piston to another.
NOTE:
The cylinder bore must be within specification for taper and out-of-round.
Use a piston without rings to push a piston ring in a cylinder to the bottom of ring travel.
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Using the Feeler Gauge Set measure the top piston ring end gap and the second piston ring end gap
Use the General Equipment: Feeler Gauge
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 th..
Check
NOTE:
Refer to the appropriate Section 303-01 for the specifications.
NOTE:
The cylinder bore must be within the specifications for taper and out-of-round before fitting a piston..
Other information:
Materials
Name
Specification
Motorcraft® High Temperature 4x4 Front Axle and Wheel Bearing GreaseXG-11
WSS-M1C267-A1
NOTICE:
Do not over-lubricate the driveshaft components. Using excessive grease may damage the driveshaft components...
Removal
NOTE:
When the battery is disconnected and connected, some
abnormal drive symptoms may occur while the vehicle relearns its
adaptive strategy. The vehicle may need to be driven to allow the PCM to relearn the adaptive strategy values.
NOTE:
Removal steps in this procedure may contain installation details...
Categories
WARNING: Airbags can kill or injure a child in a child restraint. Never
place a rear-facing child restraint in front of an active airbag. If you must use
a forward-facing child restraint in the front seat, move the seat upon which the
child restraint is installed all the way back.

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