LR3 (LA) V8-4394cc 4.4L (2005)
Crankshaft: Testing and Inspection
Crankshaft Main Bearing Journal Clearance
Crankshaft Main Bearing Journal Clearance
1. NOTE: Verify that the following stages are followed exactly. The crankshaft must be to specification.
NOTE: The bearing shells and journals must be free from engine oil and dirt.
NOTE: The measuring point should be near to the center.
Position on a length of Plastigage on the bearing journal.
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Insert the associated bearing shells, without lubrication, into the cylinder block.
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Insert the crankshaft, without lubrication, into the cylinder block.
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Position a strip of Plastigage, equal to the width of the bearing, on the bearing journal.
2. NOTE: Measure all the bearings at the same time.
Carry out the measurement.
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Install the lower crankcase with bearing shells following the relevant tightening sequence.
3. NOTE: Do not hit the lower crankcase.
Remove the lower crankcase with bearing shells.
4. Read off the measurement.
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Compare the length of plastigage with the Plastigage scale.
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The value that is read off is the bearing clearance.
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If the measurement is out of the specified range, change the bearing shells and repeat the measurement.