Honda Civic. Manual — part 1031

ENGINE BLOCK (K20Z3 ENGINE)

STANDARDS AND SERVICE LIMITS - ENGINE BLOCK (K20Z3
ENGINE)

Rod bearing
clearance

0.024-0.042
mm (0.0009-
0.0017 in.)

0.055 mm
(0.0022 in.)

Item

Measurement

Qualification

Standard or

New

Service

Limit

Block

Warpage of deck

0.07 mm
(0.003 in.)
max.

0.10 mm
(0.004 in.)

Bore diameter

A or I

86.010-86.020
mm (3.3862-
3.3866 in.)

86.070 mm
(3.3886 in.)

B or II

86.000-86.010
mm (3.3858-
3.3862 in.)

86.070 mm
(3.3886 in.)

Bore taper

-

0.05 mm
(0.002 in.)

Reboring limit

-

0.25 mm
(0.01 in.)

Piston

Skirt O.D. at 11
mm (0.4 in.)
from bottom of
skirt

No letter or A

85.980-85.990
mm (3.3850-
3.3854 in.)

85.930 mm
(3.3831 in.)

Letter B

85.970-85.980
mm (3.3846-
3.3850 in.)

85.920 mm
(3.3827 in.)

Clearance in
cylinder

0.020-0.040
mm (0.0008-
0.0016 in.)

0.05 mm
(0.002 in.)

Ring groove
width

Top

1.220-1.230
mm (0.0481-
0.0484 in.)

1.25 mm
(0.049 in.)

2008 Honda Civic EX

2006-08 GENERAL INFORMATION Specifications - Civic (All Except GX & Hybrid)

Second

1.220-1.230
mm (0.0481-
0.0484 in.)

1.25 mm
(0.049 in.)

Oil

2.005-2.025
mm (0.0789-
0.0797 in.)

2.05 mm
(0.081 in.)

Piston ring

Ring-to-groove
clearance

Top

0.045-0.070
mm (0.0018-
0.0028 in.)

0.13 mm
(0.005 in.)

Second

0.040-0.065
mm (0.0016-
0.0026 in.)

0.13 mm
(0.005 in.)

Ring end gap

Top

0.20-0.35 mm
(0.008-0.014
in.)

0.60 mm
(0.024 in.)

Second

0.50-0.65 mm
(0.020-0.026
in.)

0.75 mm
(0.030 in.)

Oil

0.20-0.70 mm
(0.008-0.028
in.)

0.80 mm
(0.031 in.)

Piston pin

O.D.

21.961-21.965
mm (0.8646-
0.8648 in.)

21.953 mm
(0.8643 in.)

Pin-to-piston
clearance

-0.005 to
+0.002 mm
(-0.00020 to
+0.00008 in.)

0.005 mm
(0.0002 in.)

Connecting rod Pin-to-rod

clearance

0.005-0.015
mm (0.0002-
0.0006 in.)

0.02 mm
(0.0008 in.)

Small-end bore
diameter

21.970-21.976
mm (0.8650-
0.8652 in.)

-

2008 Honda Civic EX

2006-08 GENERAL INFORMATION Specifications - Civic (All Except GX & Hybrid)

Large-end bore
diameter

51.0 mm
(2.01 in.)

-

End play
installed on
crankshaft

0.15-0.30 mm
(0.006-0.012
in.)

0.40 mm
(0.016 in.)

Crankshaft

Main journal
diameter

No. 1 journal
No. 2 journal
No. 4 journal
No. 5 journal

54.984-55.008
mm (2.1648-
2.1657 in.)

-

No. 3 journal

54.976-55.000
mm (2.1644-
2.1654 in.)

-

Rod journal
diameter

44.976-45.000
mm (1.7707-
1.7717 in.)

-

Rod/main
journal taper

0.005 mm
(0.0002 in.)
max.

0.010 mm
(0.0004 in.)

Rod/main
journal out-of-
round

0.005 mm
(0.0002 in.)
max.

0.010 mm
(0.0004 in.)

End play

0.10-0.35 mm
(0.004-0.014
in.)

0.45 mm
(0.018 in.)

Runout

0.03 mm
(0.0012 in.)
max.

0.04 mm
(0.0016 in.)

Crankshaft
bearing

Main bearing-to-
journal oil
clearance

No. 1 journal
No. 2 journal
No. 4 journal
No. 5 journal

0.017-0.041
mm (0.0007-
0.0016 in.)

0.050 mm
(0.0020 in.)

No. 3 journal

0.025-0.049
mm (0.0010-
0.0019 in.)

0.055 mm
(0.0022 in.)

2008 Honda Civic EX

2006-08 GENERAL INFORMATION Specifications - Civic (All Except GX & Hybrid)

ENGINE LUBRICATION (R18A1 ENGINE)

STANDARDS AND SERVICE LIMITS - ENGINE LUBRICATION (R18A1
ENGINE)

ENGINE LUBRICATION (K20Z3 ENGINE)

STANDARDS AND SERVICE LIMITS - ENGINE LUBRICATION (K20Z3
ENGINE)

Rod bearing
clearance

0.032-0.066
mm (0.0013-
0.0026 in.)

0.077 mm
(0.0030 in.)

Item

Measurement

Qualification

Standard or

New

Service

Limit

Engine oil

Capacity

Engine overhaul 4.5 L (4.8 US qt)
Oil change
including filter

3.7 L (3.9 US qt)

Oil change
without filter

3.5 L (3.7 US qt)

Oil pump

Inner-to-outer
rotor clearance

0.02-0.16 mm
(0.001-0.006
in.)

0.20 mm
(0.008 in.)

Pump housing-
to-outer rotor
clearance

0.100-0.175
mm (0.0039-
0.0069 in.)

0.20 mm
(0.008 in.)

Pump housing-
to-outer rotor
axial clearance

0.02-0.07 mm
(0.001-0.003
in.)

0.12 mm
(0.005 in.)

Oil pressure with
oil temperature at
176°F (80°C)

At idle

70 kPa (0.7 kgf/cm

2

psi)

At 3,000 rpm

340 kPa (3.5 kgf/cm

2

, 50

psi)

Item

Measurement

Qualification

Standard or

New

Service

Limit

2008 Honda Civic EX

2006-08 GENERAL INFORMATION Specifications - Civic (All Except GX & Hybrid)