Crankshaft Main Bearing Journal Clearance

303-00 Engine System - General Information 2016 Mustang

General Procedures Procedure revision date: 08/28/2012

Check

NOTE: Refer to the appropriate Section 303-01 for the specification.

1. NOTE: Crankshaft main bearing journals must be within specifications before checking journal clearance.

Remove the crankshaft main bearing cap and crankshaft main bearing.

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

Crankshaft Main Bearing Journal Clearance — original illustration 1, reference 124Original colors & callouts · Select to enlarge

3. NOTE: Do not turn the crankshaft while carrying out this procedure.

Install and tighten to specifications, then remove the crankshaft main bearing cap.

4. Measure the Plastigage to get the crankshaft main bearing clearance. The Plastigage should be smooth and flat. A changing width indicates a tapered or damaged crankshaft or crankshaft bearing.

Crankshaft Main Bearing Journal Clearance — original illustration 2, reference 124Original colors & callouts · Select to enlarge

Source reference 124

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.