Block Bore Code Location
Numbers, letters, or bars have been stamped on the end of the block as a code for the size of each of the five main journal bores.
Use them, and the numbers or bars stamped on the crankshaft (codes for main journal size), to choose the correct bearings. If the codes are indecipherable 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.
Scheme 406
Scheme 407
Scheme 408
Scheme 409
- Remove the oil pump (see «OIL PUMP REMOVAL»(ref-513834-S29764279032012111600000) ).
- Remove the baffle plate (see step 7 ).
- Remove the connecting rod cap and the bearing half.
- Clean the crankshaft rod journal and the bearing half with a clean shop towel.
- Place plastigage across the rod journal.
- Reinstall the bearing half and the cap, and torque the bolts to 29 N.m (3.0 kgf.m, 22 lbf.ft) + 90° NOTE: Apply new engine oil to the bolt threads and flanges. Do not rotate the crankshaft during inspection.
- Remove the rod cap and the bearing half, and measure the widest part of the plastigage. Connecting Rod Bearing-to-Journal Oil Clearance Standard (New): 0.033-0.064 mm (0.00130-0.00252 in) Service Limit: 0.077 mm (0.00303 in)
- 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(s), and recheck the clearance. Do not file, shim, or scrape the bearings or the caps to adjust clearance.
- If the plastigage shows the clearance is still incorrect, try the next larger or smaller bearing (the color listed above or below the current one), and check clearance again. If the proper clearance cannot be obtained by using the appropriate larger or smaller bearing, replace the crankshaft (see «CRANKSHAFT AND PISTON REMOVAL»(ref-513865-S08345079242012111600000) ) and start over.
Big End Bore 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. If the codes are indecipherable 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.
