1999 HONDA CIVIC oil seals

Valve Seals
Replacement (Cylinder head removal not requiredl
NOTE: Cylinder head removal is not required in thisprocedure.
The procedure shown below applies when using the in-
car valve spring compressor (Snap-on YA884S withY48845 - 2 A7/8" attachment).
!@@ Alway wear approved eye protection whenusing ihe in-cai valve spring compressor.
1. Turn the crankshaft so that the No. I and the No. 4pistons are at top dead center (TDC).
2. Remove the cylinder head cover and the rocker arm
assembly.
NOTE:
. Refer to page 6-30 for rocker arm assembly
removat.
. When removing or installing the rocker armassembly, do not remove the camshaft holder
bolts. The bolts will keep the holders, springs
and rocker arms on the shaft.
. Refer to page 6-46 when installing the cylinder
head cover.
Remove the fuel injectors and the wire harness.
Using the 8 mm bolts supplied with the tool. mount
the two uprights to the cylinder head at the end
camshaft holders. The uprights fit over the cam-
shaft as shown.
lnsert the cross shaft through the top hole of thetwo uprights.
3.
4.
6-14
Intake Valve Seals:
6. Select the 7/8 in diameter short compressor attach-ment, and fasten the attachment to the No. 4 hole of
the leve. arm with the speed pin supplied.
8.
7.lnsert an air adapto. into the spark plug hole. pump
air into the cylinder to keep the valve closed whilecompressing springs and removing the valve keepers.
Put shop towels over the oil passages to prevent
the valve keepers from falling into the cylinder
neao.
OIL PASSAGES
Position the lever arm under the cross shaft so thelever is perpendicular to the shaft and the compres-
sor attachment rests on top of the retainer for thespring being compressed. Use the front position
slot on the lever as shown.
,
I
i'
OIL PASSAGES
IN-CAR SPRING COMPRESSOR
SLOT

Timing Belt
Illustrated lndex
NOTE:
. Refer to page 6-20 for how to position the crankshaft and pulley before installing the belt.
. Mark the direction of rotation on the belt before removing.
a Do not use the upper cover and lower cover for storing removed items,
. Clean the upper cover and lower cover before installing.
. Replace the ca mshaft seals and cra n kshaft sea ls if there is oil leakage.
. Refer to page 6-16 before installing the timing belt.
CYLINDER HEADCOVERReler to page 6-46when installing.
HEAD COVEB GASKETReplaco when l6akin9,domaged or deteriorated.Apply liquid gasket at
th€ lour corners of thetecessos.
d
@
TIMING BELTInspection, page 6-18Adjustment, page 6-18Removal, page 6-19Installation. page 6-20
I x 1.25 mm3t N.m {3.8 kgf'm, 27 lbfftl
Apply engine oilto the bolt
thleads.
CRANKSHAFT SPEED FI.UCTUATION
lcr(Fl sENsoRReplacement, Page 6-22
UPPER COVEB
lnstallwithsurface facing in.
TIMING BELTDRIVE PULLEYReplacement, page 6_16
6x1.0mm9.8 N'm 11.0 kgt m,7.2 tbf.ft)NUBBER SEALSReplace when damagedor deledorated.
LOWER COVER
FUBBERPLUG
CRANKSHAFT PULLEYReplacement, page 6'16
PULLEY BOLTlil x 1.25 mm20 N.m 12.0 kgt.m,14 lbt'ft) + 90"Replacement, page 6'16Do not us6 an impactwrench when installing.
x 1.0 mmBOLT o-RING10 x 1,25 mm Reolace.14 N.m {,1.5 kgt m, 33 lbt ftl
6x1.0mmt2 N.m 11.2 kgf'm,8.7 tbt f0
9.E N'm (1.0 kgt.m,?.2 tbf.ftl\.-,o
6-17

Valves
Reaming
NOTE: For new valve guides only.
1. Coat both the reamer and valve guide with cufting
orl.
2. Rotate the reamer clockwise the full length of the
valve guide bore.
3. Continue to rotate the reamer clockwise while
removing it from the bore.
4. Thoroughly wash the guide in detergent and water
to remove any cutting residue.
5. Check the clearance with a valve (see page 6-391.
Verify that the valve slides in the valve guide with-
out exerting Pressure.
Turn reamer inclockwise direclionon ly.
REAMER, 5.5 mmO7HAH. PJ'O'IOB
I
REAMER
oa)o,
o
o
1.
lnstallation
Coat valve stems with engine oil. Insert the valves
in the valve guides.
NOTE: Make sure lhe valves move up and clown
smoothly.
lnstallthe spring seats on the cylinder head.
Install the valve seals using the valve guide seal
installer.
NOTE: Exhaust and intake valve seals are not inter-
changeable.
2.
3.
WHITESPRINGBLACKSPRING
INTAKE VALVE SEALEXHAUST VALVE SEAL
VALVE GUIDE SEALINSTALLERKD2899 (Commercially available)NOTE: Use small lD end of
P
(cont'd)
6-43

Valves
Camshaft/Rocker Arms and
Camshaft Seal/Pulley
Installation (cont'd)
4. Install the valve spring and valve retainer. then
install the valve spring compressor. Compress the
spring and installthe valve keepers.
NOTE: Place the end of the valve spring with close-
ly wound coils toward the cylinder head.
lCornmercially available)Snap-on CFrll or KD - 3tX'with #32 JAWS
Lightly tap the end of each valve stem two or three
times with a plastic mallet to ensure proper seating
of the valve and valve keepers.
NOTE: Tap the valve stem only along its axis so you
do not bend the stem.
' 6-44
Installation
CAUTION:
. Make sure that all tockers are in alignment with their
valvgs when torquing the rocket assembly bolts,. Valve locknuls should be loosened and adiusting
screws backed off bofore installation.
. To prevont tho rocker arm a$smbly from coming
apad, l6av€ the camshaft holder bohs in the holdeB.
1. After wiping down the camshaft, camshaft seal andjournals in the cylinder head, lubricate both sur-
faces and install the camshaft.
2. Clean and install the oil control orifice with a new
O-ring.
CAMSHAFT SEALSeal housing surface should be dry.Apply a light coat of oil to camshaftand inner lip of seal.
3. Turn the camshaft until its keyway is facing up (No.
piston TDC).
OIL CONTROL ORIFICE

11. When installing the cylinder head cover, hold the
head cover gasket in the groove by placing your fin-
gers on the camshaft holder contacting surfaces
(top of the semicircles)
Set the spark plug seal on the spark plug tube.
Once the cylinder head cover is on the cylinder
head, slide the cover slightly back and forth to seat
the head cover gasket.
NOTE:
. Before installing the cylinder head cover, clean
the cylinder head contacting surfaces with a
shop towel.
. Do not touch the parts where liquid gasket was
aDolied.
. Take care not to damage the spark plug seals
when installing the cylinder head cover,
. Visually check the spark plug seals for damage.
. Replace any washer that is damaged or deterio-
rated.
6x1.0mm9.8 N.m 11.0 ksf.m,7.2lbf ftl
\g-----*o""t'Ptl
veEE
\_
6-47
12. Tighten the nuts in two or thre€ steps. In the final
step, tighten all bolts, in sequence, to 9 8 N'm (1.0
kgf.m, 7.2 lbf.ft).
NOTE: After assemblv, wait at least 30 minutes
before filling the engine with oil
After installation, check that all tubes, hosss and
connectors are installed correctlY
1?

Valves
1.
Installation
Coat the valve stems with oil. lnsert the valves into
the valve guides.
NOTE: Check that the valves move up and downsmoothly.
Installthe spring seats on the cylinder head.
Install the valve seals using the special tool.
NOTE: Exhaust and intake valve seals are not inter-
changeable.
WHITESPRING
VALVE GUIDE SEAL INSTALLERKD-28)g (Commercially available)NOTE: Use small lDend of tool,
2.
BRACKSPRING
VALVE SEALReplace.
tNsTALLERVALVE GUIDE SEALKD-2899NOTE: Use small lDend of tool
(
4. lnstall the valve spring and valve retainer, theninstall the valve spring compressor. Compress thespring, and install the valve keepers.
NOTE: Place the end of the valve spring with closely
wound coils toward the cylinder head.
VALVE SpRtNG VALVE SPRTNG
COMpRESSOR COMPRESSORATTACHMENT
ATTACHMENT EXTENSTON
0775? _ pJlOl0A o?MAF - PR9010A
VALVE SPRING COMPRESSORlCommercially available)Snap-on CF711 or KD-3tXlwith #32JAWSLightly tap the end of each valve stem two or threetimes with the wooden handle of a hammer to ensureproper seating of the valve and valve keepers.
NOTE: Tap the valve stem only along its axis soyou do not bend the stem.
I
5.

5. lnstall the camshafts and camshaft oil seals.
NOTE:
. lnstallthe camshafts with the keyway facing up.
. lnstall the oil seal withthespring side facing in.
. The oil seal housing surface should be dry'
. Set the O-ring and dowel pin in the oil passage
of the No, 3 camshaft holder'
CAMSHAFTOIL SEALReplace.
Apply liquid gasket (P/N 08718 - 0001 or 08718 -
0OO3) to the head mating surfaces of the No. 1 and
No. 5 camshaft holders on both the intake and
exhaust side.
NOTE: Clean and dry the cylinder head mating sur-
faces before applying liquid gasket.
- Apply liquid gasket to the shaded areas'
7- lnstall the camshaft holders and camshaft holder
plaIe.
NOTE: The arrows marked on the camshaft holders
should point to the timing belt.
Tighten each bolt two turns at a time in the sequence
shown below.
NOTE: Wipe off the excess liquid gasket from the No.
1 and No. 5 camshaft holders with a shop towel
(D - @: 8 x 1.25 mm 27 N.|n (2.8 ksf'm, 20 lbf'ft)
Apply ongine oil to the throads.
O - O: 6 x 1.0 mm 9.8 N'm (1.0 kgfrm, 7.2 lbf'ft)
INTAKE
(D o o o oo o
EXHAUST
lnstall the back cover and camshaft pulleys.
{cont'd)
oooo0o@
CAMSHAFT
6-85

Engine Block
Speciaf Tools ..........." 7-2
lllustlated Index ...................."..'.......... 7-3
Flywheel and Drive Plate
Repf acement """'.' 7-7
Connecting Rod and Crankshaft
End Play ..........."....7-8
Main Bearings
Clearance ............... 7-9
Selection ................7-10
Connecting Rod Bearings
clearance ....'.......... 7-11
Selection ................ 7-11
Pistons and Crankshaft
Removaf ................. 7 -12
Crankshaft
Inspection ."".........7-14
Pistons
Inspection ......"'.....7-15
fnstaffation .............7-23
Cylinder Block
lnspec'tion ..............7-16
Bore Honing ..........7-17
Piston Pins
Removal ...,...........'.7-17
lnstallation .............7-18
Inspection .'............7-19
Connecting Rods
Selection ................7-18
Piston Rings
End Gap ..........".."' 7'2O
Repfacement .........7-2O
Ring-to-Groove Clearance ...........'.'. 7 -21
Afignment .......""'.. 7'21
Crankshaft Oil Seal
fnstaffation .............7-22
Crankshaft
fnstaffation ..-.-..'.".' 7'23
Oil Pan
lnstallation .............7-26
Oil Seals
fnstaffation ....""""' 7-29
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