Chevrolet Equinox manuals

Chevrolet Equinox Service Manual: Crankshaft and Bearing Cleaning and Inspection Engine Block Cylinder Block Crankshaft

Chevrolet Equinox Service Manual / Powertrain / Engine / Crankshaft and Bearing Cleaning and Inspection Engine Block Cylinder Block Crankshaft

Special Tools

GE-7872Magnetic Base Dial Indicator Set

For equivalent regional tools, refer toSpecial Tools.

Crankshaft and Bearing Cleaning and Inspection Engine Block Cylinder Block Crankshaft

Note:Use care when handling the crankshaft. Avoid damage to thebearing surfaces or the lobes of the crankshaft position reluctorring. Damage to the teeth of the crankshaft position reluctor ringmay affect on-board diagnostic-(OBD)-IIsystem performance.

Clean the crankshaft-(1) with solvent.Thoroughly clean all oil passages and inspect forrestrictions or burrs.

Warning:Refer toSafety Glasses Warning.

Dry the crankshaft with compressed air.

Note:Reluctor ring teeth should not have imperfections on therising or falling edges.

Imperfections of the reluctor ring teeth may effect OBD IIsystem performance.

Perform a visual inspection of the crankshaft fordamage.

Crankshaft and Bearing Cleaning and Inspection Engine Block Cylinder Block Crankshaft

The crankshaft position reluctor ring-(1) may bereplaced if damaged. Tighten the crankshaft position reluctor ringbolts to15-Y(11-lb-ft).

Crankshaft and Bearing Cleaning and Inspection Engine Block Cylinder Block Crankshaft

Inspect the crankshaft journals for wear-(1). Thejournals should be smooth, with no signs of scoring, wear, ordamage.Inspect the crankshaft journals for grooves orscoring-(2).Inspect the crankshaft journals for scratches orwear-(3).Inspect the crankshaft journals for pitting or imbeddedbearing material-(4).

Crankshaft and Bearing Cleaning and Inspection Engine Block Cylinder Block Crankshaft

Measure the crankshaft journals-(1) forout-of-round.Measure the crankshaft journals for taper.

Crankshaft and Bearing Cleaning and Inspection Engine Block Cylinder Block Crankshaft

Measure the crankshaft runout.

Using wooden V-blocks, support the crankshaft onthe front and rear journals.

Use theGE-7872indicator-(1) in order to measure the crankshaft runoutat the front and rear intermediate journals.Use theGE-7872indicatorin order to measure the runout of the crankshaft rearflange.Replace the crankshaft if the measurements are not withinspecifications.

Crankshaft and Bearing Cleaning and Inspection Engine Block Cylinder Block Crankshaft

Note:Crankshaft bearings MUST be separated, marked, or organizedin a way to ensure installation to their original location andposition, when suitable for use.

Inspect crankshaft bearings for craters orpockets-(1). Flattened sections on the bearing halvesalso indicate fatigue.Inspect the crankshaft bearings for excessive scoring ordiscoloration-(2).Inspect the crankshaft bearings for dirt or debris imbeddedinto the bearing material.Inspect the crankshaft bearings for improper seatingindicated by bright, polished sections of thebearing-(3).

If the lower half of the bearing is worn or damaged, bothupper and lower halves should be replaced.

Generally, if the lower half is suitable for use, the upperhalf should also be suitable for use.

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Special ToolsGE 7872Magnetic Base Dial IndicatorFor equivalent regional tools, refer toSpecial Tools.Cleaning ProcedureClean the camshaft in solvent.Warning:Refer toSafety Glasses Warning.Dry the cams ...

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