Crankshaft Inspection

WARNING: This page is about a different car, the 2003 Acura 3.2TL, 2002 Acura 3.2TL, 2001 Acura 3.2TL, 2000 Acura 3.2TL, and 1999 Acura 3.2TL. However, it is still accessible from the selected car via links, so may be relevant.

Remove the crankshaft from the cylinder block. See CRANKSHAFT & PISTON .
Clean the crankshaft oil passages with pipe cleaners or a suitable brush.
Check the keyway and threads.
Measure out-of-round at the middle of each rod and main journal in 2 places. The difference between measurements on each journal must not be more than the service limit. See Fig 1 and JOURNAL OUT-OF-JOURNAL table.
Measure 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. See JOURNAL TAPER table.
Place the cylinder block on the surface plate.
Clean and install the bearings on the No. 1 and No. 4 journal of the cylinder block.
Lower the crankshaft into the block.

Measure runout on all main journals. Rotate the crankshaft 2 complete revolutions. The difference between measurements on each journal must not be more than the service limit. See Fig 2 and CRANKSHAFT TOTAL RUNOUT table.

JOURNAL OUT-OF-JOURNAL

Application	Specification - In. (mm)
Standard (New)	.0002 (.005)
Service Limit	.0004 (.010)

JOURNAL TAPER

Application	Specification - In. (mm)
Standard (New)	.0002 (.005) max.
Service Limit	.0004 (.010)

CRANKSHAFT TOTAL RUNOUT

Application	Specifications - In. (mm)
Standard (New)	.0008 (.020)
Service Limit	.0012 (.030)

Fig 1: Measuring Out-Of-Journal At Middle Of Each Rod

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 2: Measuring Runout On All Main Journals

Courtesy of AMERICAN HONDA MOTOR CO., INC.