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.
-
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.
-
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:
Engine
Item
Specification
Displacement
140
in³ (
2.3
L)
No. of cylinders
4
Bore
3.4449
in (
87.5
mm)
Stroke
3.7008
in (
94
mm)
Firing order
1-3-4-2
Compression ratio
10...
Materials
Name
Specification
Motorcraft® MERCON® LV Automatic Transmission FluidXT-10-QLVC
WSS-M2C938-AMERCON® LV,
Removal
NOTE:
Removal steps in this procedure may contain installation details.
With the vehicle in NEUTRAL, position it on a hoist...
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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