OEM 2008 Chrysler Pacifica Rod Bearing

2008 Chrysler Pacifica Rod Bearing Parts and Q&A

• Q: How to measure Rod Bearing Clearance on 2008 Chrysler Pacifica?

  A: For the connecting rod bearing clearance, note that there are two types of rods with bearing caps, a standard forged one and a cracked cap forged type and these cannot be exchanged; mark your rods when removing them for right assembly later. Always fit the bearing shells so that the tangs are placed into the machined grooves in the rod and cap and the tangs will be on the same side as the rod. Continue fitting rods onto just one bank before moving to another, using shear connectors available in standard sizes and both small and large undersizes by 0.025 mm (0.001 in.) and 0.250 mm (0.010 in.). Bearings should be paired, so only match new with new, never pair new with old and make sure to not file on the rods or the caps. Evaluate how close the connecting rod journal is to being both tapered and round. Put a piece of Plastigage across the full width of the bearing shell in the cap when the connecting rod you're testing is at its bottom position and then rotate the crankshaft to check. With Plastigage in the rod cap, tighten it to the right torque without spinning the crankshaft. With the caps removed, see how much Plastigage has flattened at each end and use the scale on the package to learn the oil clearance. Any difference in widths suggests that tapered bearings were used. Check all your readings, then replace the bearing when the bearing clearance is above the wear limit.