1998 HONDA INTEGRA ZC engine

Transmission Housing
Removal
NOTE:
. lf tho transmission housing or clutch housing are
replaced, the bearing preload must be adjusted
(818C1 8nd 818C5 engines).
. Place the clutch housing on two pieces of wood thick
enough to keep the mainshaft from the hifting the
workbench.
1. Remove the back-up light switch.\
2. Remove the transmission hanger B.
3. Remove the set screws, the springs, and the steel
balls.
BACK-UP LIGHTswrTcHTRANSMISSIONHANGER B
STEEL BALLD. 5/16 in
SET SCREW
WASHERReplace.
Remove the reverse idler gear shaft bolt.
13-10
5. Loosen the transmission housing attaching bolts in
a crisscross pattern in several steps, then remove
them.TRANSMISSION
Remove the 32 mm sealing bolt.
Expand the snap ring on the countershaft ball bear-
ing and remove it from the groove using a pair of
snap ring pliers.
6.
7.
ATTACHING BOLT
SNAP RING
32 mm SEALING BoLT

|'I
Mainshaft Assembly
Glearance Inspection
NOTE: lf replacement is required, always replace the
svnchro sleeve and the svnchro hub as a set.
'L Measure the clearance between 2nd and 3rd qears.
Standard: 0.05 - 0.21 mm (0.002 - 0.C08 in)
Service Limit: 0.3 mm 10,01 inl
13-22
Engine Type818C1.818C5818B 1
Standard34.92 - 34.97 mm
{l.375 - 1.377 in)
34.42 - 34.47 mm(1.355 - 1.357 in)
Service Limit34.8 mm
(1.370 in)
34.3 mm(1.350 in)
2. It the clearance is more than the service limit, mea-
sure the thickness of 3rd gear.
li the thickness of 3rd gear is less than the ser-
vice limit, replace 3rd gear with a new one.
lf the thickness of 3rd gear is within the service
limit, replace the 3rd/4th synchro hub with a new
one.
3RD GEAR

4.
Measure the clearance between 4th qear and the
spacer colar.
Standard: 0.06 - 0.21 mm (0.002 - 0.008 in)
Service Limit:0.3 mm (0.01 in)
4TH GEAR
SPACER COLLAR
lf the clearance is more than the service limit, mea-
sure distance A on the spacer collar.
Standard: 26.03 - 25.08 mm (1.025 - 1.027 in)
SPACER COLLAR
Engine Type818C1, B'l8C581881
Standard31 .42 - 31.47 mm
(1 .237 - 1.239 inl
30.92 - 30.97 mm
11 .211 - 1.2'tg inl
Service Limit31.3 mm
11.232 inl
30.8 mm
(1.213 in)
5. lf distance @ is not within the standard, replace the
spacer collar with a new one. lf distance @ is within
the standard, measure the thickness of 4th gear.
lf the thickness of 4th gear is less than the ser-
vice limit, replace 4th gear with a new one.
lf the thickness of 4th gear is within the service
limit, replace the 3rd/4th synchro hub with a new
one.
(cont'd)
13-23

Reassembly
CAUTION:
. Press the 3rd/4th and the 5th synchro hubs on the
mainshaft without lubrication.
. When installing rhe 3rd/4th and the 5th synchro
hubs, support the mainshaft on the steel blocks. and
install synchro hubs using a press.
. Install the 3rd/4th and the 5th synchro hubs with a
maximum pressure of 19.6 kN {2,000 kgf, 14,/166 lbfl.
NOTE: Refer to page 13-21 for reassembly sequence.
'1. Support 2nd gear on steel blocks, then install the
3rd/4th synchro hub using the special tools and a
press, as shown.
NOTE: After installing, check the operation of the
3rd/4th synchro sleeve and hub
81881 engine:
DR|VER,40 mm l.D.07746 - 0030100AITACHMENT.35 mm LD.07746 - 00304003RD/4THSYNCHRO HUB
f
2ND GEAR
818C1 and B18C5 engines: Assemble the 3rd/4th syn-
chro hub and sleeve together before installing them on
the mainshaft.
3RD/4TH PRESS
SYNCHRO HUBORIVER, 40 mm LO.07746 - 0030100Closed endfaces up.
3RD/4THSYNCHROSLEEVE
2ND GEAR
2.
3.
Install the sth synchro hub using the special tools
ano a press as snown.
Install the angular ball bearing using the special
tools and a press as shown.
ATTACHMENT.35 mm LD.
DRIVER, 10 mm LD.
07?,16 - 0030100
J
a
\
13-27
{

1.Measure the clearance between the thrust shim and
1st gear.
Standard: 0.045 - 0.205 mm (0.0018 - 0.0081 in)
Service Limit:0.265 mm {0.0104 in}
3. Measure the clearance between 2nd and 3rd gears.
Standard: 0.07 - 0.14 mm {0.003 - 0.006 inl
Service Limit: 0.20 mm (0.008 in)
4. lf the clearance exceeds the service limit, measure
the thicknesses of 2nd gear and the spacer collar.
2ND GEAR
lf the clearance exceeds the service limit, measure
the thicknesses of 1st gear and the thrust shim.
lST GEAR
Standard: 31./t5 - 31.50 mm (1.238 - 1.2i10 in)
THRUST SHIM
Standard: 1.945 - 1.955 mm (0.0766 - 0.0770 inl
SPACER COLLAR
Stand.rd: 29.07 - 29.09 mm 11.1'+4 - 1.1,15 inl
lf the thicknesses of 1st gear and the thrust shim
are less than the standard, replace them with
new ones,
lf the thicknesses of 1st gear and the thrust shim
are within the standard, replace the 1sv2nd syn-
chro hub with a new one,
lf the thicknesses of 2nd gear and the spacer col-
lar are less than the standard, reDlace them with
new ones.
lf the thicknesses of 2nd gear and the spacer col-
lar are within the standard, replace the 1sv2nd
synchro hub with a new one.
THRUST SHIM
Engine TypeB18C1, 818C581881
Standard2a.92 - 28.97 mm
(1.139 - 1.141 in)
34.62 - 34.67 mm(1.363 - 1.365 in)
Service Limit28.8 mm(1.13 in)
34.5 mm(1.36 in)

Gountershaft Assembly
Reassembly
CAUTION:
. Press 4th and sth gears on the countershaft without
lubrication.
. When installing 4th and 5th gears, supPort the shaft
on steel blocks, and install the gears using a press.
. Install 4th and sth geal with a maximum pressure of
25.5 kN {2,600 kgf, 18,806 lbfl.
NOTEr Refer to page '13-28 for reassembly sequence
Install the thrust shim and the needle bearings on
the countershaft.
NEEOLE BEARING
THRUST SHIM
COUNTERSHAFT
Install the friction damper, the synchro ring, and the
synchro spring on lst gear.
Install the lst/2nd synchro hub by aligning the fin-
gers on the friction damper and the grooves in the
lst/2nd synchro hub, as shown.
lST/2ND
13-32
1ST GEAR
5.
lnstall the reverse gear.
Install the synchro spring. and the double cone
synchro (818C1 and 818C5 engines). or synchro
ring (81881 engine), as shown.
OOUELE CONESYNCHRO
SYNCHROSPRING
REVERSEGEAR
6. Assemble the friction damper, the needle bearing.
and 2nd gear. then install them by aligning the fin-
gers on the friction damper and the grooves in the
1sv2nd synchro hub with the fingers of the double
cone synchro and the grooves on 2nd gear, as
shown.
7. Install the spacer.2ND GEAR
SPACER
FRICTION DAMPER
8.Install the parts assembled in steps 2 - 6 on the
countershaft.

I
Transmission Assembly
1.
2.
Install the dowel pins on the clutch housing.
Apply grease to the parts as shown, then install the
release fork and release bearing.
NOTE: Use only Super High Temp Urea Grease
(P/N 08798 - 9002).
3. Install the release fork boot.
lnstallation
22 tbl.lll
RELEASE FORK BOLT29 N.m {3.0 kgl.m,{P/N 08798 - 9002t
RELEASEBEAFING
RELEASEFORK
lPlN 08798 - 90021
Place the transmission on the transmission jack,
and raise it to the engine level.
Install the transmission mounting bolts and the rear
mount bracket bolts.SELF.LOCKING BOLT
12 x 1.25 mm64 N.m {6.5 kgf.m, {7 lbtftl
Replace.14 x 1.5 mm
RELEASEFORKBOOT
\i'l-r )i-
.+.i
13-46
6. Raise the transmission, then install the transmission
mounr,
NOTE: Torque the mounting bolt and nuts in the
sequence shown.
CAUTION: Check that the bushings are not twisted
or offset.
!) tz x t.zs mm64 N.m {6.5 kgt.m,47 tbl.ftl
7. Install the three upper transmission mounting
and the lower staner motor mountinq bolt.
bolts
10 x 1.25 mm44 N.m (4.5 kgt m.33 tblftl
(a 12 x 1.25 mm74 N.m {7.5 kgf m,54 tbf.ft)
'12x1.25mn
64 N.m {6.5 kst.m,47 lbf,ft)

8. Install the right front mounvbracket.
SELF-LOCKING BOLTReplace.'12 x 1.25 mm
RIGHT FRONTMOUNT/BRACKET
l0 x 1.25 mmil4 N.m (4.5 kg'f.m,33 tbt.ft)
9. lnstall the clutch cover (Bl8Cl and 81881 engines).
6x1.0mm12 N.m {1.2 kg{.m,9 rbf.ft)
12 x 1.25 mm 24 N.m t2.4 kof.m.57 N.m {5.8 kg{.m, 17 tbf.ftt42 tbt.ftl(81881 engin€)
10. Install the front
stifteners.
(818C1 engine) and fear engine
REAR ENGINESTIFFENERS
12 x 1.25 mm57 N'm 15.8 kg{.m.42 tbr.ltl
H!\,
f @^\
I B'{o| \-
1.25 mmN.m {2.4 kgf m,rbf.ftl
12 x 1.25 mm57 N.m (5.8
{2 tbtft}
8 x 1.25 mm -8
24 N.m {2.4 kgt m,17 tbtftl
FRONT ENGINESTIFFENERS(B18Cl engine)
12 x 1.25 mn157 N m (5.8 kgt m,42 tbl.ftl
2111
'11. Install the stiffener (818C5 engine).
8 x 1.25 mm24 N.m (2.4 kg{.m,1? tbf.ftl
8 x 1 ,25 mm24Nm{2.4kgtm.17 rbr.ftllBl8C5.nginel
12 x 1 .25 mm57 N.m (5.8 kgl.m,a2 rbf.ftl
(cont'd)
13-47