Honda Civic. Manual — part 568

Fig. 3: Identifying Engine Block , Piston And Connecting Rod
Courtesy of AMERICAN HONDA MOTOR CO., INC.

CONNECTING ROD AND CRANKSHAFT END PLAY INSPECTION

1. Remove the oil pan (see OIL PAN REMOVAL ).
2. Remove the oil screen and baffle plate (see step 8 ).

2008 Honda Civic GX

2006-08 ENGINE Engine Block - Civic (Except Hybrid)

3. Measure the connecting rod end play with a feeler gauge between the

connecting rod and crankshaft.

Connecting Rod End Play

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

Service Limit: 0.45 mm (0.018 in.)

Fig. 4: Measuring Connecting Rod End Play
Courtesy of AMERICAN HONDA MOTOR CO., INC.

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 ).

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.)

2008 Honda Civic GX

2006-08 ENGINE Engine Block - Civic (Except Hybrid)

Fig. 5: Pushing Crankshaft Firmly Away From Dial Indicator
Courtesy of AMERICAN HONDA MOTOR CO., INC.

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 ).

CRANKSHAFT MAIN BEARING REPLACEMENT

Main Bearing Clearance Inspection

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

and bearing halves (see CRANKSHAFT AND 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 25 N-m (2.5

kgf-m, 18 lbf-ft) + 57 degrees in the proper sequence (see step 19 ).

5. Remove the lower block and bearings again, and measure the widest part of the

plastigage.

Main Bearing-to-Journal Oil Clearance

Standard (New): 0.018 - 0.034 mm (0.0007 - 0.0013 in.)

Service Limit: 0.045 mm (0.0018 in.)

NOTE:

Do not rotate the crankshaft during inspection.

2008 Honda Civic GX

2006-08 ENGINE Engine Block - Civic (Except Hybrid)

Fig. 6: Measuring Widest Part Of Plastigage
Courtesy of AMERICAN HONDA MOTOR CO., INC.

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 listed above or below the current 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, letters or bars have been stamped on the either side of the block end

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.

2008 Honda Civic GX

2006-08 ENGINE Engine Block - Civic (Except Hybrid)