November 2011
72-30-05
A. Connecting Rod Magnetic Particle Inspection
Before performing the Connecting Rod Magnetic Particle Inspection, the connecting rod and
cap must be clean and free of rust, scale, oil, or other residue that may affect the reliability of
the Magnetic Particle Inspection. Inspect the connecting rods using both the circular and
longitudinal method of magnetization. Use the fluorescent method, wet continuous procedure,
reference ASTM standards for non-destructive testing.
Refer to the Table 72-30-2 for inspection pass/fail criteria.
NOTE... Reject connecting rod or caps exhibiting the unacceptable
indications listed in the Fail column of Table 72-30-2.
72-30-04
ULTRASONIC INSPECTIONS
The inspections must be performed by technicians possessing inspection certification
credentials listed in “A. Ultrasonic Inspection Certification.”
A. Ultrasonic Inspection Certification
Cylinders and crankshafts nondestructive testing (NDT) inspectors must be certified and
trained by Plumstead Quality and Training Services (PQT). Contact PQT to enroll in required
training:
Plumstead Quality and Training Services (PQT)
806 Botany Road
Greenville, SC 29615
Phone: (864) 292-1115
www.PQT.net
B. Crankshaft Ultrasonic Inspection
See Section 1-20-01, “Special Tools” for equipment requirements and availability.
1. Perform an Ultrasonic Inspection on the crankshaft according to the latest version of
Continental Motors Material Handling Specification (MHS) 200.
WARNING
Do not steel stamp the inspection result on the crankshaft, it
will damage the nitride finish. Genuine Continental Motors
Crankshaft are stamped prior to nitride treatment.
Table 72-30-2. Connecting Rod Magnetic Particle Inspection Criteria
Pass
Fail
Steel inclusions or shallow imperfections on the forging
surface - light indications running parallel to the rod axis
or around the pin boss and cap ends less than ½-inch in
length - No Crack Indications are Allowed
Indications associated with forging laps or with heat
treatment are cracks
Blend area between the piston pin boss extending 1-inch
into connecting rod I beam, the bolt spot face areas and
the channel rail edges are free of any indications of
cracks/wear
Area of blend between the piston pin boss extending 1-
inch into connecting rod I beam, the bolt spot face areas
and the channel rail edges shows indications of cracks/
wear
Any indication transverse to the rod axis.
Summary of Contents for LTSIO-520-AE
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