1994 HONDA INTEGRA camshaft

52 N.m (5.3 kgt'm, 38 lbf'ft)
19. Remove the side engine mount.
10 x 1.25 mm
20. Remove the cylinder head cover.
WASHERS
SIDE ENGINEMOUNT
12 x 1.25 mm74 N.m {7.5 kgf.m,5{ rbtftl
CYLINDEB HEAD
Remove the timing belt (see page 6-10).
Remove the camshaft pulleys and back cover.
23. Remove the exhaust manifold.
SELF.LOOKING NUT8 x 1.25 mm
BACK COVER
BRACKET
(cont'd)
6-19

Cylinder
Removal
Head
(cont'dl
GASXET
IMTAXE MANIFOLD
2,0. Remove the intake msnifold.Remove the camshaft holder bolts, then remove the
camshaft holde.s. camshafts and rocker arms.
25. Loosen the locknuts and adiusting screws.27. Remove the cylinder head bolts. then remove the
cvlindsr head.
CAUTION: To preyant warpago. unlcr.w thc bolt3
in laquoncc 1/3 turn at I tim6; .apeat the $qurnca
until sll boltr arc loosrncd.
ADJUSNNG SCNEW LOCATN)NS:
CYLINOER HEAD BOLTS LOOSENING SEOUENCE

!
1.
2.
Camshafts
Inspection
Loosen the adjusting screws.
Remove the camshaft holders and the rocker arms
NOTE: Mark the rocker arms before removing
them.
Reinstall the camshaft and holders. Tighten the
camshaft holder bolts in a crisscross pattern, begin-
ning with the inner bolts.
9.8 N.m (1.0 kgf.m,7.2 lbf.ft)
Seat the camshafts by pushing them toward the dis-
tributor end of the head with a screwdriver.
Zero the dial indicator against the end of the
camshaft. push the camshaft back and forth and
read the end play.
Camshalt End Play:
St.ndard lNow): 0.05 - 0.15 mm
(0.002 - 0.006 inl
Seivice Limit: 0.5 mm {0,02 in)
Remove the camshaft holder bolts from the cylinder
head.
NOTE: Unscrew the camshaft holder bolts two
turns at a time, in a crisscross pattern.
Lift the camshafts out ot the cylinder head. wipe
them clean, then inspect the lift ramps. Replace the
camshaft if any lobes are pitted, scored, or exces-
srvely worm
Clean the camshaft journal surfaces in the cylinder
head, then set the camshaft back in place. Insert a
plastigage strip across each iournal.
Install the camshaft holders and torque the bolts to
the values and in the sequence shown on page 6-30.
NOTE: Do not rotate camshafts during inspection.
-
6-21
10.Remove the camshaft holders. Measure the widest
ponion of plastigage on each journa..
Camshaft-to Holder Oil Clearance:
Standard lNewl: 0.039 - 0.069 mm(0.0015 - 0.0027 in)
Sarvico Limit 0.15 mm {0.006 inl
11. lf camshaft-to-holder oil clearance is out of toler
ance:
. And the camshaft has already been replaced,
vou must replace the cylinder head.
. lf the camshaft has not been replaced, first check
total runout with the camshaft supported on V-
blocks.
Clmshaft Total Runout:
StEndard {New): 0.03 mm (0.001 inl max'
Servico Limit: o.Oil mm {0.002 inl
- lf the total runout of the camshafts is within tol-
erance, replace the cylinder head.
- lf the total runout is out of tolerance, replace the
camshafts and recheck. lf the oil clearance is still
out of tolerance. replace the cylinder head.
PLASTIGAGE

I
Replacement
1. As illustrated in the removal steps of this proce-
dure, use a commercially-available air-impact driv-
er attachment modified to fit the diameter of the
valve guides. In most cases. tho same procedure
can be done using the Valve Guide Driver and a
conventional hammer.
COMMERCIALLY AVAILABI,I
VALVE GUIDE DRIVER
RGmov.l rnd In3tlllationVALVE GUIDE DRIVER, 6.6 mm
0?942 - 6570100
Select the proper replacement guides and chill
them in the freezer section of a refrigerator for
about an hour.
Use a hot plate or oven to evenly heat the cylinder
head to 300'F (150'Cl. Monitor the temperature with
a cooking thermometer.
CAUTION:
. Do not use a torch; it may warP the hgad.
. Do not get ths head hottq than 3OO'F 1150"C);
excessive hgat may loos€n thG valvs soat3.
. To avoid burns, usa hoavy glov93 whon handling
the heated cylinder hoad.
-----T_-
lrl
11.3 mmlo.il,l in)
f sz --| 12.21i^l
6-25
4.Working from the camshaft side. use the driver and
an air hammer to drive the guide about 2 mm {0.1
in) towards the combustion chamber. This will
knock oft some of the carbon and make removal
eaSrer.
GAUTIOiI:
o Alwrys woar safety goggles or a face shiold
wh6n using tho Eir hammer.
. Hold ths air hammsr directly in lins with the
vrlvr guidc to prsvont damaging tho drivor.
Turn the head over and drive the guide out towatd
the camshaft side of head.
lf a valve guide still won't move, drill it out with a 8
mm (5/16 in) bit, then try again.
CAUTION: Drill guid$ only in oxtremo cases: You
could drmrgo tho cylinder hosd if ths guido br"akr.
VALVE GUIDE DRIVER,6.6 mm
07942 - 65701q)
Remove the new guide{s} from the refrigerator, one
at a time, as you need them.
{cont'd)
OO ",
O (V /rl -1-- ) o

Valve Guides
Replacement {cont'd}
7. SliD a 6.5 mm {0.25 in) stsel washor and the correct
driver attachment over the end of the driver {The
washer will absorb some of the impact and extend
the life of the driver).
.,F-q-re
tt-T-IIttlDRVEn 6,5 mm t0.25 in) ATTACHMENT
WASHER
8, Install the new guide(s) from the camshaft side of
the head; drive each one in until the attachment
bottoms on the head. lf you have 8ll sixteen guides
to do, vou may have to reheat the head one or two
more I|mes.
Valv6 Guida Instsllod Hcight:
lntaks: 13.75 - 14.25 mm
(o.sal - 0.561 inl
Exhru3t: 15.75 - 16.25 mm
{0.620 - 0.640 in}
Reaming
NOTE: For new valve guides only.
Coat both reamer and valve guide with cutting oil.
Rotate the reamer clockwise the full length of the
valve guide bore.
Continue to rotate the reamet clockwise while
removing it from the bore.
Thoroughly wash the guide in detergent and water
to remove any cutting residue.
Check clearance with a valve (see page 6-24).
. Verify that the valve slides in the intake 8nd
exhaust valve guides without ex€rting pressure.
VALVE GUII'E REAMER, 6.6 MM
079E4 - 667ot0c
REAMER HANDLE
s

t
Gylinder Head
Installation
Installthe cylinder head in the reverse order of removal:
NOTE:
. Always use a new head gasket.
. Cylinder head and cylinder block surface must be
ctean.
. "UP" mark on the timing belt pulleys should be at the
top.
. Do not use the middle cover and lower cover for stor-
ing items disassembled.
. Clean the middle cover and lower cover before instal-
lation.
. Replace the washer when damaged or deteriorated.'1. Cylinder head dowel pins and the oil control orifice
must be aligned,
NOTE:
. When handling a metal gasket, care should be
taken not to told it or damage the contact surface
of the gasket.
. Clean the oil control orifice when installing.
CYLINDER HEAD GASKET
{3 LAYERS OF METALIReplace.
OOWEL PINSorl coNtnolORIFICEClean.
O.RINGReplace.
Tighten the cylinder head bolts in two steps. In the
Jirst step tighten all bolts, in sequence, to about 29
N.m {3.0 kgf.m, 22 lbl.ltJ; in the final step, tighten in
the same sequence to 83 N.m (8.5 kgf.m, 61 lbf'ft).
NOTE:
. Apply engine oil to the cylinder head bolts and
the washers.
. Use the longer bolts at positions No. 1 and No. 2
as shown.
CYLINDER HEAD BOLTS TOROUE SEOUENCE
@o@@@
NOTE: lf camshaft-to-holder oil clearances (see page 6-
21) are not within specitication, the head cannot be
resurfaced.
lf camshaft'to-holder oil clearances are within specifica-
tions, check the head for warpage.
lf warpage is less than 0.05 mm (0.002 in) cylinder
head resurtacing is not required.
lf warpage is between 0.05 mm (0.002 in) and 0.2 mm
(0.008 in), resurface cylinder head.
Maximum resurface limit is 0.2 mm (0.008 in) based
on a height of 132.0 mm (5.20 in).
Measure along edges, and 3 ways across center.
Cylinder Hoad Height:
Standard (New): 131.95 - 132.05 mm
{5.195 - 5.191t in}
PRECISION STRAIGHT EOGE
Put longer bolts here.

Install the intake manifold and tighten the nuls in a
c.isscross pattern in 2 or 3 steps, beginning with the
inner nuts.
CAUTION: Check to. fold3 or 3cratchc! on ihc aur-
taco ol tho ga3kot. Roplscs with a nlw gaeket if
damagod.
Tighten the intake manifold bracket bolts.
GASXETReplace.
E x 1.25 mm 8 x 1,25 mm2ir N.m l2.it kg{.m, 23 N.m 12.3 kgf.m.17 tbf.ftl 17 tbl.frt
Install the exhaust manifold and tighten the new
self-locking nuts in a crisscross pattern in 2 or 3
steps, beginning with the inner nuts.
. Use new self-lockiflg nuts.
4.
5.
8 x 1.25 mm24 N.m (2,a kgf.m,
SELF.LOCKING NUT8 x 1.25 mm31 N.m (3.2 kgt m,23lbfftlEXHAUST11Replace.
l0 x 1.25 mma,t N.m 14.5 kgf.m,33 tbt.ft)
GASKEIReplace.
8 x 1.25 mm2il N.m 12.4 kg{.m,17 rbtftl
m
CAUTION:
. Mlka 3uro thrt thc k.ywlyr on tho c.mthlttr lrc
facing up .nd No. I pi3ton i3 8t top d.rd clnt.r(TDCt.
. Rcphct th! rocksr armr in thsir o.iginal potltlom.
6, Place the rocker arms on the oivot bolts and ths
valve stems.
lnstallths camshafts, then installth€ camshaft sosls
with ths open side (spring) facing in.
Apply liquid gasket around the rubber cap, then
installthe rubber cao.
7.
8.
(cont'd)
6-29

Cylinder Head
Installation (cont'dl
9. Apply liquid gasket to the head mating surtaces of
the No. 1 and No. 6 camshaft holders, then install
them, along with No. 2,3, 4, and 5.
NOTE:
o "1" or "E" marks are stamoed on the camshaft
holders.
. Do not apply oil to the holder mating surface of
camshaft seals.
. Apply liquid gasket to the shaded areas.
. The arrows marked on the camshatt holders
should point to the timing belt.
No.6 No.5No.2 No. 1
10. Tighten the camshaft holders temporarily.
. Make sure that the rocker arms are properly
positioned on the valve stems.
INTAKE CAMSHAFT HOLDERS
11. Tighten each bolt in two steps to ensure that the
rockers do not bind on the valves.
6r1.0mm9.8 N.m 11.0 kgf.m,7.2lbtft)
Install keys into camshaft grooves.
NOTE: To set the camshafts at TDC position for No.
1 piston, align the holes in the camshafts with the
holes in No. 1 camshaft holders and insert 5.0 mm
pin punches in the holes.
I r 1.25 mm37 N.m {3.8 kgf.m, 27 lbf.ttl
6x1.0mm9.8 N.m (1.0 kgf.m,7.2 tbtft)
Push camshaft pulleys onto camshafts, then tighten
the retaining bolts to the torque specified.
KEYS
13.
tfitml