Engine Block: Overview Honda S2000 AP1

Scheme 194

Scheme 195

Scheme 196

Scheme 197

Scheme 198

1. Remove the oil pump (see «OIL PUMP OVERHAUL»(ref-221324-S39983886362006022400000) ).
2. Measure the connecting rod end play with a feeler gauge between the connecting rod and crankshaft. Connecting Rod End Play Standard (New): 0.15-0.30 mm (0.006-0.012 in.) Service Limit: 0.40 mm (0.016 in.)
3. If the connecting rod end play is out-of-tolerance, install a new connecting rod, and recheck. If it is still out-of-tolerance, replace the crankshaft (see «OIL PAN REMOVAL»(ref-221323-S25540807762006022400000) ).
4. Push the crankshaft firmly away from the dial indicator, and zero the dial against the end of the crankshaft. Then pull the crankshaft firmly back toward the indicator; the dial reading should not exceed the service limit. Crankshaft End Play Standard (New): 0.10-0.35 mm (0.004-0.014 in.) Service Limit: 0.45 mm (0.018 in.)
5. If the end play is excessive, replace the thrust washers and recheck. If it is still out-of-tolerance, replace the crankshaft (see «OIL PAN REMOVAL»(ref-221323-S25540807762006022400000) ).

Scheme 199

1. Remove the lower block and bearing halves (see «OIL PAN REMOVAL»(ref-221323-S25540807762006022400000) ).
2. Remove all of the old liquid gasket from the lower block mating surfaces, bolts, and bolt holes.
3. Remove the lower block mating surface.
4. Clean each main journal and bearing half with a clean shop towel.
5. Place one strip of plastigauge across each main journal.
6. Reinstall the bearings and lower block, then torque the bolts to 29 N.m (3.0 kgf.m, 22 lbf.ft) + 60 °. NOTE: Do not rotate the crankshaft during inspection.
7. Remove the lower block and bearings again, and measure the widest part of the plastigauge. Main Bearing-to-Journal Oil Clearance Standard (New): 0.017-0.041 mm (0.0007-0.0016 in.) Service Limit: 0.050 mm (0.0020 in.)
8. If the plastigauge 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.
9. If the plastigauge 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 and start over.

Scheme 200

1. Numbers or 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. Write down the crank bore codes. If you can't read the codes because of accumulated dirt and dust, do not scrub them with a wire brush or scraper. Clean them only with solvent or detergent.

Scheme 201

Scheme 202

1. The main journal codes are stamped on the No. 1 web.
2. Use the crank bore codes and crank journal codes to select the appropriate replacement bearings from the following table. NOTE: Color code is on the edge of the bearing. When using bearing halves of different colors, it does not matter which color is used in the top or bottom.

Scheme 203

1. Remove the connecting rod cap and bearing half (see «OIL PAN REMOVAL»(ref-221323-S25540807762006022400000) ).
2. Clean the crankshaft rod journal and bearing half with a clean shop towel.
3. Place a plastigauge across the rod journal.
4. Reinstall the bearing half and cap, and torque the bolt to 25 N.m (2.5 kgf.m, 18 lbf.ft) + 90°. NOTE: Do not rotate the crankshaft during inspection.
5. Remove the rod cap and bearing half, and measure the widest part of the plastigauge. Connecting Rod Bearing-to-Journal Oil Clearance Standard (New): 0.030-0.054 mm (0.0012-0.0021 in.) Service Limit: 0.060 mm (0.0024 in.)
6. If the plastigauge 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.
7. If the plastigauge 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. If the proper clearance cannot be obtained by using the appropriate larger or smaller bearing, replace the crankshaft and start over.