Ford 2003 Mustang Workshop Manual page 903

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SECTION 303-00: Engine System — General Information

GENERAL PROCEDURES

Connecting Rod —Bearing Journal Clearance

Special Tool(s)

303-D031 (D81L-6002-B) or

NOTE: The crankshaft connecting rod journals must be within specifications to check the connecting

rod bearing journal clearance.

1. Remove the connecting rod bearing cap.

2. Position a piece of Plastigage across the bearing surface.

3. NOTE: Do not turn the crankshaft during this step.

Install and tighten to specifications, then remove the connecting rod bearing cap.

4. Measure the Plastigage to get the connecting rod bearing journal clearance. The Plastigage

should be smooth and flat. A changing width indicates a tapered or damaged connecting rod or

connecting rod bearing.

Refer to the appropriate section in Group

If out of specification, install new components as necessary. Refer to the appropriate

section in Group

for the procedure.

2003 Mustang Workshop Manual

for the procedure.

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