Acura TSX / Honda Accord CL. Manual — part 448

Standard (New): 0.15-0.35 mm (0.006-0.014 in)

Service Limit: 0.40 mm (0.016 in.)

Fig. 183: Measuring The Connecting Rod End Play

4. 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 CRANKSHAFT & PISTON REMOVAL ).

5. 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.)

2004 Acura TSX

2004 ENGINES 2.4L DOHC VTEC - TSX

Fig. 184: Checking Crankshaft End Play

6. If the end play is out-of-tolerance, replace the thrust washers and recheck, if it is still out-of-tolerance,

replace the crankshaft.

CRANKSHAFT MAIN BEARING REPLACEMENT

Main Bearing Clearance Inspection

1. To check main bearing-to-journal oil clearance, remove the lower block and bearing halves (see

CRANKSHAFT & PISTON REMOVAL ).

2. Clean each main journal and bearing half with a clean shop towel.

3. Place one strip of plastigage across each main journal.

4. Reinstall the bearings and lower block, then torque the bolts to 29 N.m (3.0 kgf.m, 22 lbf.ft) + 56° in the

2004 Acura TSX

2004 ENGINES 2.4L DOHC VTEC - TSX

proper sequence (see step 18 of CRANKSHAFT INSTALLATION ).

5. Remove the lower block and bearings again, 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 (0.0007-0.0016 in.)

Service Limit: 0.050 mm (0.0020 in.)

No. 3 Journal:

Standard (New): 0.025-0.049 mm (0.0010-0.0019 in.)

Service Limit: 0.055 mm (0.0022 in.)

Fig. 185: Measuring The Widest Part Of The Plastigage

6. 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.

7. If the plastigage shows the clearance is still incorrect, try the next larger or smaller bearing (the color

NOTE:

Do not rotate the crankshaft during inspection.

2004 Acura TSX

2004 ENGINES 2.4L DOHC VTEC - TSX

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.

Main Bearing Selection

Crankshaft Bore Code Location

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.

Fig. 186: Locating Crankshaft Bore Codes

Main Journal Code Location

2004 Acura TSX

2004 ENGINES 2.4L DOHC VTEC - TSX