2003 HONDA CIVIC crankshaft journal

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ItemMeasurementOualificationStandard or NewService LimirBlock
Piston
I Warpage of deck0.07 mm (0.003 in.) max.foro.. (ulur^^-"1tsore diameterAori
Borll
(3.3858 3.3862 in.)
85.980 85.990 mm (3.3850 3.3854 in.)
l-il?0 €s.980 r"i33846
86.010 86.020 mm
(3.3862 3.3866 in.)
86.000 86.010 mm
86.070 mm (3.3886 in.)
86.070 mm (3.3886 in.)
0.05 mm (0.002 In.J
85.920 mm (3.3827 in.)
0.25 mm (0 0l in.)
85.930 mm (3.383'l in.)
Reboring lrmit
Skirt O.D. at 11 mm (0.4 in.) from
bottom of skirtF" btt"' "' A
Letter B
0.020 0.040 mm (0 0008 0.0016 in.)0.05 mm {0.002 in.)Top1.220 1.230 mm (0.0481 0.0484 in.)1.25 mm 10.049 rn )Second1.220 1.230 mm (0.0481 0 0a84In.)1.25 mm 10.049 in.)
Piston ring
lFis,.€-"'"
",";"*
L-Ring end gap
o.D.
i 2.005 2.025 mm (0.0789 0.0797 in.)
fo.o:s o.oto.rn lo.oora o.ooza i.'.f
EO3t 0 056 rn. {OJ01r OOO2 i")
?.09rrl9.091lt )
0.13 mm (0.005 in )
0.13 mm (0.005 in.)Second (FEDEHAL
I\4OGUL)
Top
0.025 0.060 mm (0.0010 0.0024 in.)0.13 mm (0.005 in )
0.20 0.35 mm (0.008 0.014 in.)0.60 mm (0.024 in.)Second0.40 0.55 mm {0.016 0.022 in.)0.70 mm (0.028 in.)OiI (REKEN)
21.961 21.965 mm {0.8646 0.8648 in.)
0.25 0.65 mm (0.010 0.026 in.)
0 20 0.70 mm i0.008 0.028 in.)
0.75 mm (0.030 in.)OiI(FEDERAL
I\4OG U L)0.80 mm 10.031 in.)
Piston pin21.953 mm l0 8643 inPin'to-piston clearance0.005-*0.002 mm ( 0.00020 +
0.00008 in.)
0.005 mm (0.0002 in.)
Connecting rodPin to-rod clearance0.005 0.015 mm (0.0002 0.0006 in.)0.02 mm lO 0OO8 in ISmall end bore diameler21.970 21.976 mm (0.8650 0.8652 in.)Large-end bore diameter (Normal)48.0 mm (1.89 in.)End play inslalled on crankshaft0.15 0.30 mm (0.006 0.012 in.)0.40 mm (0.016 in.)CrankshaftMain journal diameter
Rod journal diameter
No. l journal
No. 2 journal
No. 4 journal
No. 5 journal
No. 3 journal
s4.e84 s5.008 mm (2.1648=16illl
54.976 55.000 mm (2.1644 2-1654in)
44.976 45.000 mm (1.1707 1.1717 in.lRod/main0.005 mm 10.0002 in.) max.0.010 mm (0.0004 in.)Rod/main iournal out of,round0.005 mm (0.0002 in.) max.0.010 mm (0.0004 in.)End play0.10 0.35 mm (0.004 0.0'14 in.)0.45 mm 10.018 in.)Runout..-'.:--'+0.03 mm (0.0012 in.) max.0.04 mm {0.0016 in.)
Deaflngs
Marn oear,n9-toJournat ott ctearanceNo. l journal
No. 2 journal
No. 4 journal
No.5
No. 3 journa/
0.017 0.041 mm (0.0007 0.0016 in.)
q0rr034, -rn {O'o010 0-o01r|"tl
0.050 mm (0.0020 in.)
0.055 mm (0.0022 in.)Bod bearing clearance0.021 0.049 mm (0.0008 0.0019 in.)0.060 mm (0.0024 in.)
Standards and Service Limits
Enqine Block
_f
c_a
2-4
-

Cylinder Head
WEC Rocker Arms Test (cont'dl
'10. Loosen the valve on the regulator, and apply thespecified air pressure.
Specified air pressure:
290 kPa 13.0 kgt/cm', 42 psi)
NOTE: lf the synchronizing piston does not moveafter applying air pressure; move the primary orsecondary rocker arm up and down manually byrotating the crankshaft clockwise.
11. With the specified air pressure applied, move theintake primary rocker arm (A)forthe No, 1 cylinder.The primary rocker arm and secondary rocker arm(B) should move together.
lf the intake secondary rocker arm does not move,
remove the primary and secondary rocker arms asan assembly, and check that the pistons in theprimary and secondary rocker arms move
smoothly. lf any rocker arm needs replacing,
replace the primary and secondary rocker arms asan assembly, and test.
Remove the special tools.
Tighten the camshaft holder mounting bolts lo22N m 12.2 kgf.m, 16 lbf.ft).
Tighten the sealing boltto 20 N.m (2.0 kgf.m,
14 tbf.ft).
Installthe cylinder head cover (see page 6-41).
12.
13.
14.
t5.
6-8
VTG Actuator Inspection
'11. Remove the cylinder head cover (see page 6-22lr.
2. Remove the auto-tensioner (see page 6-19).
3. Loosen the rocker arm adjusting screws lsee step 2on page 6-26).
4. Remove the camshaft holder (see step 3 on page 6-
26t.
5. Remove the intake camshaft.
6, Check that the variable valve timing control (VTC)
actuator is locked by turning the VTC actuator
clockwise and counterclockwise. lf the VTC actuatoris not locked, replace the VTC actuator.
7. Seal the advance holes (A)and retard holes (B) in
the No. 1 camshaft journal with tape.
Punch a hole through the tape over one of theadvance holes.

Engine Block
Crankshaft Main Bearing Replacement
Main Bearing Clearance Inspection
1. To check main bea ring-to-jou rna I oil clearance.
remove the lower block and bearing halves (see
page 1 -12)..
2, Clean each main journal and bearing half witha
clean shop towel.
3. Place one strip of plastigage across each main
lou rnal.
4. Reinstallthe bearings and lower block, then torque
the bolts to 29 N.m {3.0 kgf.m,22 lbf.ft) + 56'.
NOTE: Do not rotate the crankshaft during
Inspeclton.
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
Service Limit:
No.3 Journal:
10.0007 0.0016 in.l
0.050 mm {0.0020 in.)
Standard {Newl: 0.025 - 0.049 mm(0.0010 0.0019 in.)
Service Limit: 0.055 mm (0.0022 in.l
7-6
\.
6. lf the plastigage measures too wide or too narrow,
remove the crankshaft. and remove the upper half
ofthe 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. lf 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. lf 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. lf 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.
No. 1 JOURNALIPULLEY END}No. 5 JOURNAL{FLYWHEEL END)
Main Journal Code Location
2. The main journal codes a{e stamped on the
cra n kshaft.
No. 1 JOURNALNo. 5 JOURNAL
(cont'd)
7-7

Engine Block
Crankshaft Main Bearing
Replacement (cont'd)
3. 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.
Mainiournslcooe
Crank ---=-> Lalger crank bore
bore | 1or 2ot 3or c oi__-lcode IAorl Borll Corlll Dortttt I-- --> Smaller bearing {Thickerl
(Thicker)
1
2
4
5
Pink f!1f;* v"rro* c,""n
ll
f111f;,," v"no* c,""" $;;fl
cr""n $ffi ero-n
ffi#Tr,.*" i.,""*Creen ; g=jiff;i Brown Black
;;lT]*
'---l-'o"*,
Brown Black 6il;
Brack !l;kr ar*
7-8
Connecting Rod Bearing
Replacement
Rod Bearing Clearance lnspection
1. Remove the oil pump (see page 8-9).
2. Bemove the baffle plates (see step 6 on page 7-12).
3. Remove the connecting rod cap and bearing half.
4. Clean the crankshaft rod journal andbearinghalf
with a clean shop towel.
5. Place plastigage across the rod journal.
6. Reinstallthe bearing half and cap, and torque the
bolts to 20 N.m (2.0 kgf.m, 14lbf.ft) -l 90 ".
NOTE: Do not rotate the crankshaft during
inspection.
7. Remove the rod cap and bearing half, and measure
the widest part of the plastigage.
Connecting Rod Bearing-to-Journal Oil
Clearance:
Standard {Newl: 0.020 0.050 mm(0.0008 --0.0020 in.l
Service Limit: 0.060 mm (0.0024 in.)
\
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Engine Block
Connecting Rod Bearing Replacement (cont'dl
Connecting Rod Journal Code Location
3. The connecting rod journalcodes are stamped on
the crankshaft.
Connecting Rod Journal Code Location (Letters or
Bars)
No.l JOURNAL No. 4 JOURNAL
7-10
\{
4. Use the big end bore codes and rod journalcodes
to select 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.
Big end ----------> Larger big end boreborecodolorl2oJll3 ol lll4 orllll
---------> Smallsrb.aring {Thickerl
PinkPink/YellowYollow/GrecnGreen
YellowYellow/GreenGreen/BrownBrown
GreenGreen/BrownErown/BlackBlack
BrownBrown/BlackBlack/BlueBlue
Rod
B
c
D
{\
(Thicker)
{

10.Remove the rod caps/bearings. Keep all caps/
bearings in order.
Liftthe crankshaft out ofthe engine, being careful
not to damage the journals.
Remove the upper bearing halves from the
connecting rods. and set them aside with their
respective caps.
lf you can feel a ridge of metal or hard carbon
around the top of each cylinder, remove it with a
ridge reamer {A). Followthe reamer manufacturer's
instructions. lf the ridge is not removed, it may
damage the pistons as they are pushed out.
11.
t.J.
14. Use the wooden handle of a hammer (A) to drive
out the pistons (B).
Reinstall the lower block and bearings on the
engine in the proper order,
Reinstallthe connecting rod bearings and caps
after removing each piston/connecting rod
assembly.
To avoid mixup on reassembly. mark each piston/
connecting rod assembly with its cylinder number.
NOTE: The existing number on the connecting rod
does not indicate its position in the engine, it
indicates the rod bore size.
15.
to.
17.
7-13

Engine Block
Crankshaft lnspection
Out-ol-Round and Taper
1. Remove the crankshaft from the cylinder block (see
page 7-121.
2. Clean the crankshaft oil passages with pipe
cleaners or a suitable brush.
3. Clean the keyway and threads.
4. Measure out-of round at the middle of each rod and
main journal in two places. The difference between
measurements on each journal must not be more
than the service Iimit.
Journal Out-ot-Round
Standard (New): 0.005 mm (0.0002 in.) max.
Service Limit; 0.010 mm (0.0004 in.)
5. Measure taper at the edges of each rod and mainjournal. The difference between measurements on
each journal must not be more than the service
limit.
JournalTaper
Standard lNewl: 0.005 mm (0.0002 in.) max.
Service Limit: 0.010 mm {0.0004 in.)
I_JJ
fl
7-14
\
Straightness
6. Place the cylinder block on the surface plate.
7. Clean and installthe bearigns on the No.1 and No.5journal of the cylinder block.
8. Lower the crankshaft into the block.
9. Measure runout on all main journals. Rotate the
crankshaft two complete revolutlons. The
difference between measurements on each journal
must not be more than the service limit.
Crankshaft Total Runout
Standard (New): 0.03 mm 10.0012 in.l max.
Service Limit: 0.04 mm (0.0016 in.l
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