RL V6-3.7L (2009)
Crankshaft: Testing and Inspection
Crankshaft Inspection
Crankshaft Inspection
Out-of-Round and Taper
1. Remove the crankshaft from the engine block. See: Service and Repair/Crankshaft and Piston Removal
2. Clean the crankshaft oil passages with pipe cleaners or a suitable brush.
3. Check the keyway slot and the threaded holes for damage.
4. Measure out-of-round at the middle of each rod and main journal in two places. The difference between measurements on each journal must not be
more than the service limit.
Journal Out-of-Round
5. Measure the taper at the edges of each rod and main journal. The difference between measurements on each journal must not be more than the
service limit.
Journal Taper
Straightness
6. Place the engine block on the surface plate.
7. Clean and install the bearings on the No. 1 and No. 4 journal of the engine block.
8. Lower the crankshaft into the engine block.
9. Measure the runout on all of the main journals. Rotate the crankshaft two complete revolutions. The difference between measurements on each
journal must not be more than the service limit.
Crankshaft Total Runout
