Connecting Rod Cleaning

WARNING: This page is about a different car, the 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

Using a suitable solvent, thoroughly clean the connecting rod and rod cap.
Mark each connecting rod and its corresponding rod cap for correct installation.
Measure the inside diameter of the piston pin bushing. Install a new connecting rod, if not within specification.

Fig 1: Checking Connecting Rod Pin Bore Diameter With Specifications

Courtesy of FORD MOTOR CO.

Using a suitable micrometer, measure the connecting rod bearing bore.
1. Remove the connecting rod bearings from the connecting rod and the connecting rod cap. Install the connecting rod cap onto the connecting rod and tighten the bolts.
  - Tighten to 45 Nm (33 lb-ft).
2. Further tighten the connecting rod cap bolts.
  - Tighten to 68 Nm (50 lb-ft).
3. Measure and record the connecting rod bearing bore as indicated. Install new connecting rods if not within specification.

Fig 2: Checking Connecting Rod Bearing Bore Diameter With Specifications

Courtesy of FORD MOTOR CO.

Using a suitable micrometer, inspect the connecting rod bearing bore taper.
1. Measure the bearing bore inside diameter near the large chamfer.
  - Measure the bearing bore inside diameter near the small chamfer.
  - The difference between the 2 readings is the bore taper. Install new connecting rods if not within specifications.

Fig 3: Checking Connecting Rod Bearing Bore Taper With Specifications

Courtesy of FORD MOTOR CO.