Special Tools
Inspection Procedure
Warning: Refer to Safety Glasses Warning in the Preface section.
- Coat the crankshaft bearings with engine oil.
- Install the upper crankshaft bearings into the engine block crankshaft journals.
- Install the lower crankshaft bearings into the crankshaft bearing caps.
- Install the crankshaft.
- Inspect the crankshaft end play with the crankshaft bearings installed.
- Check the permissible crankshaft end play. Refer to
Engine Mechanical Specifications.
- With the crankshaft mounted on the front and the rear crankshaft bearings, check the middle crankshaft journal for permissible out-of-round, runout. Refer to
Engine Mechanical Specifications.
Important: Grease the crankshaft journals and lubricate the crankshaft bearings slightly so that the plastic gaging thread does not tear when the crankshaft bearing caps are removed.
- Measure all of the crankshaft bearing clearances using a commercially available plastic gaging, ductile plastic threads.
- Cut the plastic gaging threads (1) to the length of the bearing width. Lay them axially between the crankshaft journals and the crankshaft bearings.
- Install the crankshaft bearing caps.
Caution: Refer to Fastener Caution in the Preface section.
- Install the crankshaft bearing cap bolts.
Tighten
Tighten the crankshaft bearing cap bolts to 50 N·m (37 lb ft) using the
J 45059 or the
KM-470-B (1) to tighten
the crankshaft bearing cap bolts plus 45 degrees, plus 15 degrees.
- Remove the crankshaft bearing caps.
- Measure the width of the flattened plastic thread (1) of the plastic gaging using the scale printed on the plastic gaging package. Plastic gaging is available for different tolerance ranges.
- Inspect the bearing clearances for permissible tolerance ranges. Refer to
Engine Mechanical Specifications.