Connecting Rod Bearing: Testing and Inspection
CLEARANCE1. Remove the connecting rod cap and bearing half.
2. Clean the crankshaft rod journal and bearing half with a clean shop towel.
3. Place plastigage across the rod journal.
4. Reinstall the bearing half and cap, and torque the nuts to:
46 Nm (4.7 kgf.m, 34 ft. lbs.)
NOTE: Do not rotate the crankshaft during inspection.
5. Remove the rod cap and bearing half, and measure the widest part of the plastigage.
Connecting Rod Bearing to Journal Clearance:
Standard (New): 0.027 - 0.055 mm (0.0011 - 0.0022 inch)
Service Limit: 0.006 mm (0.002 inch)
6. If the plastigage measures too wide or too narrow, remove the upper half of the bearing, install a new, complete bearing with the same color code (select the color as shown in Selection), and recheck the clearance.
CAUTION: Do not file, shim, or scrape the bearings or the caps to adjust clearance.
7. If the plastigage shows the clearance is still incorrect, try the next larger or smaller bearing (the color listed above or below that one), and check clearance again.
NOTE: If the proper clearance cannot be obtained by using the appropriate larger or smaller bearings, replace the crankshaft and start over.
SELECTION
CAUTION: If the codes are unreadable because of an accumulation of dirt and dust, do not scrub them with a wire brush or scraper. Clean them only with solvent or detergent.
Connecting Rod Journal Code Locations
Numbers or Bars have been stamped on the side of each connecting rod as a code for the size of the big end. Use them, and the letters or bars stamped on the crank (codes for rod journal size), to choose the correct bearings.
The Connecting Rod Journal Codes are stamped in the following locations.
Connecting Rod Journal Code Locations: (Letters Or Bars)