ZDX V6-3.7L (2010)
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. Remove the crankshaft position (CKP) pulse plate from the crankshaft See: Powertrain Management/Computers and Control Systems/Crankshaft
Position Sensor/Service and Repair/CKP Pulse Plate Replacement.
3. Clean the crankshaft oil passages with pipe cleaners or a suitable brush.
4. Check the keyway slot and the threaded holes for damage.
5. Measure the out-of-round at the middle of each rod and the main journal in two places. The difference between measurements on each journal
must not be more than the service limit.
Journal Out-of-Round
6. 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
7. Place the V-blocks on a flat surface.
8. Check the total runout with the crankshaft supported on V-blocks.
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.
