Fig. 2. Magnetic Particle Inspection Limits for Connecting Rod.
= Average diameter of bore
NOTE: The length of the rod can be measured on
connecting rod measurement fixtures marketed by B. K.
Sweeney, Tobin Arp or equivalent.
Specifications: 3.2495 " to 3.2515 ".
Remove any nicks or burrs from the connecting rod bolt
holes with reamer J 28460. The reamer includes a 60°
angle to clean-up the chamfer at the bolt hole to ensure
IMPORTANT: If the crosshead connecting
proper seating of the underside of the bolt head.
rod bore is not to specifications, the rod
must be scrapped and cannot be machined.
If a new service connecting rod is required, stamp the
cylinder number on the connecting rod and cap (refer to
IMPORTANT: Clean the rust preventive from a
a. Subtract D1 from D2 to find the difference.
service replacement connecting rod and blow
b. The difference can be .0005 " maximum.
compressed air through the drilled oil passage
to be sure it is clear of obstructions. Also make
4. Determine length by finding the distance between E1
sure the split line (cap to rod) is thoroughly
and E2 (Fig. 3).
adversely affecting bearing shell "crush".
Specifications: 10.121 " to 10.126 ".
Inspect the bearing (bushing) for indications of