Engine Block: Overview Acura RDX I facelift

Scheme 337

Scheme 338

Scheme 339

Scheme 340

Scheme 341

1. Remove the oil pump (see «OIL PUMP REMOVAL»(ref-513834-S29764279032012111600000) ).
2. Remove the baffle plate (see step 7 ).
3. Measure the connecting rod end play with a feeler gauge between the connecting rod and the crankshaft. Connecting Rod End Play Standard (New): 0.15-0.35 mm (0.006-0.013 in) Service Limit: 0.40 mm (0.015 in)
4. If the connecting rod end play is beyond the service limit, install a new connecting rod, and recheck. If it is still beyond the service limit, replace the crankshaft (see «CRANKSHAFT AND PISTON REMOVAL»(ref-513865-S08345079242012111600000) ).
5. Push the crankshaft firmly away from the dial indicator, by prying, then zero the dial against the end of the crankshaft. Then pull the crankshaft firmly back toward the indicator by prying; the dial reading should not exceed the service limit. Crankshaft End Play Standard (New): 0.10-0.35 mm (0.0039-0.0137 in) Service Limit: 0.45 mm (0.0177 in)
6. If the end play is beyond the service limit, replace the thrust washers, and recheck. If it is still beyond the service limit, replace the crankshaft (see «CRANKSHAFT AND PISTON REMOVAL»(ref-513865-S08345079242012111600000) ).

Scheme 342

Scheme 343

1. Remove the lower block and bearing halves (see «CRANKSHAFT AND PISTON REMOVAL»(ref-513865-S08345079242012111600000) ).
2. Clean each main journal and the bearing half with a clean shop towel.
3. Place one strip of plastigage across each main journal.
4. Reinstall the bearings and the lower block, then torque the bolts to 29 N.m (3.0 kgf.m, 22 lbf.ft). NOTE: Apply new engine oil to the bolt threads and flanges. Do not rotate the crankshaft during inspection.
5. Tighten the bearing cap bolts an additional 67°.
6. Remove the lower block and bearings halves, and measure the widest part of the plastigage. Main Bearing-to-Journal Oil Clearance No. 1, 2, 4, 5 Journals: Standard (New): 0.017-0.041 mm (0.00067-0.00161 in) Service Limit: 0.050 mm (0.00197 in) No. 3 Journal: Standard (New): 0.025-0.049 mm (0.00098-0.00193 in) Service Limit: 0.055 mm (0.00217 in)
7. If the plastigage measures too wide or too narrow, remove the crankshaft, and 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.
8. 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 again. If the proper clearance cannot be obtained by using the appropriate larger or smaller bearings, replace the crankshaft (see «CRANKSHAFT AND PISTON REMOVAL»(ref-513865-S08345079242012111600000) ) and start over.

See also:
• UNDER-FLOOR TWC REMOVAL/INSTALLATION
• TRANSMISSION REMOVAL