B2300 SE Regular Cab 2WD L4-2.3L VIN A (1997)
Connecting Rod: Testing and Inspection
Inspection
1. Measure the small end inner bore diameter of each connecting rod.
Diameter: 23.124-23.144 mm (0.9104-0.9112 in)
CAUTION: If the connecting rod is replaced, the connecting rod cap must also be replaced, since they are a matched set.
2. Check the bend and twist factor of each connecting rod Repair or replace as necessary.
Bend: 0.038 mm (0.0015 in)
Twist: 0.076 mm (0.003 in)
Length (Center to Center): 138.58-138.67 mm (5.4558-5.4591 in)
NOTE: The piston pin bore and crankshaft bearing bore must be parallel and in the same vertical plane, within the specified total difference when
measured at the ends of an 203.2mm (8 in) bar, 101.6mm (4 in) on each side of the connecting rod centerline.
3. Measure the connecting rod crankshaft bearing bore diameter.
Diameter: 55.170-55.190 mm (2.1720-2.1728 in)
4. If the diameter exceeds the specification, replace the connecting rod.
5. Measure the connecting rod crankshaft bearing bore out-of-round and taper
Out-of-round: 0.01 mm (0.0004 in)
Taper: 0.01 mm (0.0004 in)
6. If the out-of-round or taper measurements exceed the maximum, replace the connecting rod.
