Gear HONDA CIVIC 1997 6.G Repair Manual

Mainshaft Assembly
Disassembly (cont'd)
3. Support the 3rd gear on steel blocks, and press the
mainshaft out of the 3rd/4th synchro hub as shown.
13-18
Inspection
'1. Inspect the gear surface and bearing surface for
wear and damage. then measure the mainshaft atpoints A, B, C, and D.
Siandard: A: 21.987 - 22.000 mm
10.8656 - 0.8661 inl
B: 26.980 - 26.993 mm
11.0622 - 1.0627 inl
C: 33.98,1- 34.000 mm(1.3380 - 1.3385 in)
D: 25.977 - 25.990 mm
|.1.0227 - 1.0232 inl
Service Limit: A: 21.930 mm 10.8634 inl
B: 26.930 mm {1.0602 in}
C: 33.930 mm (1.3358 in)
D: 25.920 mm (1.0205 in)
Check for wear and damage
lf any part of the mainshaft is less than the service
limit, replace it with a new one.
2. Inspect for runout.
Standardi 0.02 mm (o.(Xtl in) max.
S€rvice Limii: 0.05 mm (0.002 in)
NOTE: Support the mainshaft at both ends as
snown.
lf the runout is more than the service lirnit, reolace
the mainshaft with a new one.
Y

I
)r'
Reassembly
CAUTION: When installing the 3rd/4th and 5th synchro
hubs, support th€ shaft on steel blocks, and insiall the
synchro hubs using a press.
NOTE: Refer to page 13-15 for reassembly sequence.
1. Support 2nd gear on steel blocks' then install the
3rd/4th synchro hub using the special tools and a
oress.
ATTACHMENT,35 mm LO.07746-OO3O/+OO
' ,2I{D GEAR
Install the 3rd/4th synchro sleeve by aligning the
stops of the 3rdl4th synchro sleeve and hub.
NOTE; After installing, check the operation of the
3rd/4th svnchro hub set
SYf{CHRO SLEEVE
3. Install the sth
ano a press.
synchro hub using the special tools
DRIV€R, 40 mm I O.
07746 -0030'100
ATTACHMENT,30 mm l.D.07746 -O030300
sTH SYNCHRO HU8
Install the ball bearing in the direction shown using
the special tools and a Press.
DRIVER, iO mm l.D.
07746 - lxxlollx'
ATTAGHMENT, 30 mm l.D.
077i16 - 00303qt
BAI-L BEARING
Ball cage faces uP
*1: D16Yt engane*2: Dl6Y5, D16Y8 6ngines
13-19

Countershaft Assembly
Index
I.r
NOTE:
-re
The 3rd, 4th, and sth gears are installed with a press.
Prior_to reassembling, clean all the parts in solvent, dry them and apply lubricant to all contact surfaces except the3rd, 4th, and 5th gears.
Snap ring groove faces up.
LOCKNUT Replace.108-O- 108 N.m
I 11.0-O-11.0 kst.ml
I 79.6-0- 79.6 lbt.ft I
SYNCHRO SPRING
SYNCHRO RINGInspectaon, page 13-28
FRICTION DAMPER
Thin edge ol outerrace faces down.
Check for wear andoperatron,
/ BALL EEAR|NG t*1)
t NEEDLE BEARTNG (.2)
Check for wearand operatron,
WASHERBEARING
GEAR
4TH GEAR
3RD GEAR2ND GEAR
FRICTION DAMPER
SYNCHRO SPRING
SYNCHRO RINGInspection, page 13-2836 x 41 x 25.5 mmNEEDLE BEARINGCheck for wear and operataon.
Inspection, page 13-23
1ST GEARlnspection, page 13 21, 28lnspection, page 13-21, 2839x44x27mmNEEDLE BEARIfI'GCheck for wear andoperation.
SPACER COLLARInspection, page 13-21
REVERSE GEARlnspection, page 13 27
1ST/2ND SYNCHRO HUB
*1: D'16Y7 engine*2: D16Y5, D16Y8 engines
13-20

I)t
Clearance Inspection
NOTE: lf replacement is required, always replace the
synchro sleeve and hub as a set.
1. Measure the clearance between the countershaft
and lst gear.
Standard: 0.03 - 0.10 mm (0'(X)l - 0'qt4 in)
Sorvic. Limit: 0.22 mm (0.009 inl
2. lf the clearance is more than the service limit, mea-
sure the thickness of 1st gear.
Standard: 30./tl - 30.'l'l mm
11.197 - 1.198 in)
Servics Limit 30.36 mm (1.195 in)
lf the thickness of 1st gear is less than the service
limit, replace lst gear with a new one.
lf the thickness of 1st gear is within the service
limit, replace the lsv2nd synchro hub with a new
one.
GAUGE
1ST GEAB
3. Measure the clearance between 2nd and 3rd gears.
Standard: 0.04 - 0.12 mm (0.002 - 0.005 in)
Servico Limit: 0.2,1 mm 10.009 in)
4. lf the clearance is more than the service limit, mea-
sure th€ thickness of the spacer collar'
stlndard: 32.G1 - 32'06 mm
{1.261 - 1.262 in}
S6rvica Limh: 32'01 mm (1'260 in)
SPACERCOLLAR
lf the thickness is less than lhe service limit, replace
the sDacer collar with a new one.
lf ths thickness is within the service limit, measure
the thickness of 2nd gear.
Standard: 31.91 - 31.96 mm
11.256 - 1.258 inl
Soryice Limit 31.85 mm (1.25,1inl
z4:_- 2I{D GEAF
/l\\/j'T - "b/
P-
1^'.-1r.--l--f
lf the thickness of 2nd gear is less than the ser-
vice limit, replace 2nd gear with a new one.
lf the thickness of 2nd gear is within the servace
limit, replace the lsv2nd synchro hub with a new
one,
13-21

Countershaft Assembly
Disassembly
CAUTION: Remove the gears using a press and steelblocks as shown. Use of a iaw-type puller can damagethe gear teeth.
1. Securely clamp the countershaft assembly in a
bench vise with wood blocks.
2. Raise the locknut tab from the groove of the coun-
tershaft, then remove the locknut and the springwasher.
3.Remove the bearings using a bearing puller as
shown.
EEARING PULLER
\
4. Support 4th gear on steel blocks, and press the coun-tershaft out of 5th and 4th gears as shown.
Support 1st gear on steel blocks, and press the coun-
tershaft out of 3rd gear as shown.
5.
I./
3RD GEAR
1ST GEAR

Inspection
1.surfaces lor
countershaftInspect the gear surfaces and bearang
wear and damage, then measure tne
at points A, B, and C.
Standard: A: 30.000 - 30.015 mm
(1.1811- 1.1817 inl
B: 35.984 - 36.000 mm
(1.i1167 - 1.4173 inl
C: 24.980 - 2i1.993 mm
{0.9835 - 0.9840 in)
Seryice Limit: A: 29.950 mm (1.1791 inl
B: 35.930 mm (1 '1146 in)
C: 24.930 mm 10.9815 in)
Check oil passages
for cloggrng-
ICheck for wearano oamage.
. lf any part of the countershaft is less than
service limit, replace it with a new one.
Inspect for runout.
Standard: 0.02 mm (0.001 inl max.
Seryice Limit: 0.05 mm {0'002 in)
. lf the runout is more than the service limit. replace
the countershaft with a new one.
the
2.
t,3. Install the parts on the countershait
Reassembly
CAUTION:
. Press the 3rd,4th, and sth gears on the countershaft
without lubrication.
. When installing the 3rd. 4th, and 5th geals, support
the shaft on steel blocks and installthe gears using a
pless.
NOTE: Reler to page 13-20 for reassembly sequence'
1. lnstall the needle bearing on the countershaft'
, 36x41 x 25.5mmNEEDLE BEARING
COUNTERSHAFT
2. Assemble the pans below as shown.
NOTE: Check that the fingers of the friction damper
are securely set in the grooves of the 1sv2nd syn-
chro hub.
2ND GEAR
39x/+4x27mmNEEDLE BEARING
SPACER COLLAR
FRICTION DAMPER
SYNCHRO RING
SYNCHRO SPRING
REVERSE GEAR
lST/2NOSYNCHRO HUB
SYNCHRO SPRING
SYNCHRO RING
FRICTION DAMPER
1ST GEAR
(cont'd)
13-23

Countershaft Assembly
Reassembly (cont'd)
4. Suppon the countershaft on a steel block as shownand install 3rd gear using the special tools and apress.
PRESS
35 mm l.o.07746-0030400
5. Install 4th gear using the special tools and a press.
DRlvER. 40 mm
DRIVER, 40 mm LO.07746 -0030100
ATTACHMENT,
07746- 0030100
ATTACHMENT,
DRIVER, 40 mm l.D.07746-0030100
ATTACHMENT,30 mm l.D.
35 mm LO.07746-0030400
6. Install 5th gear using the special tools and a Dress.
07746-00303005TI{ GEAR
.g
7. Install the bearings in the direction shown using thesDecialtools and a oress.
CAUTION: Install ths bearings with a maximumpressure ot 7.8 kN {800 kgt, 5,786 lbfl.
ATTACHMENT,30 mm l.D.07745 - q'303tl)
*1: 016Y7 engine*2: D16Y5, D16Y8 enginesThin edge of outerrace faces down,
8. Securely clamp the countershaft assemblv in
bench vise with wood blocks.
LOCKNUT
108+0r108N.m(11.0 * 0 - 11.0 kgt m. 79.6 - 0 * 79.6 tbf.ft)
Install the spring washer, tighten the locknut, thenstake the locknut tab into groove.
/rt-\
srySnap ring
lacss up.
\J

Synchro Sleeve,
Synchro Hub
MBS Shift Piece InsPection
1. Measure the width of the MBS shift piece.
Standard; 6.9 - 7.1 mm 10 272 - 0.280 inl
Service Limit: 6.8 mm {0.268 inl
lf the width of the MBS shift piece is less than
service limit, replace the MBS shift piece'
t
I nspection/l nstallati on
'1.lnspect gear teeth on all synchro hubs and synchro
sleeves tor rounded off corners, which indicate
Install each synchro hub in its mating synchro
sleeve, and check for freedom of movement.
NOTE: lf replacement is required, always replace
the synchro sleeve and synchro hub as a set.
SYNCHROSLEEVE
When assembling the synchro sleeve and synchro
hub, be sure to match the three sets of longer teeth
(120 degrees apart) on the synchro sleeve with the
three sets of deeper grooves in the synchro Hub
CAUTION: Do not install th€ sYnchro sleeve with
its longsr t€sth in the synchro hub slots bocause ii
will damage ths spring ring.
LONGER TEETH
13-27

Synchro Ring, Gear
Inspection
1. Inspect the synchro ring and gear.
A: Inspect the inside of the synchro ring for wear.
B: Inspect the synchro sleeve teeth and matching
teeth on the synchro ring for wear (rounded off).
r- /-\
oioi *-o*
C: Inspect the synchro sleeve teeth and matching
teeth on the gear for wear (rounded off).
,

UtJGOOO WORN
D: Inspect the gear hub thrust surface for wear.
E: Inspect the cone surface for wear and roughness.
Fr Inspect the teeth on all gears for uneven wear,
scoring, galling, and cracks.
2. Coat the cone surface of the gear with oil. and place
the synchro ring on the matching gear. Rotate the
synchro ring. making sure that it does not slip.
Measure the clearance between the synchro ring
and gear all the way around.
NOTE: Hold the synchro ring against the gear evenly
while measuring the clearance.
Synchro Ring-to-Gear Clearance
Standard: 0.73 - 1.18 mm {0.029 - 0.046 in}
Service Limit 0.4 mm {0.02 in)
lf the clearance is less than the service limit, replace
the synchro ring and synchro cone.
SYNCHRO
SYNCHRO
\a
r/
13-28

Differential
Check lor cracks.
BALL BEARINGCheck for wear and damage.
DIFFERENTIAL
THRUST SHIMSelective part
SPEEDOMETERDRIVE GEAR
10 x 1.0 mm101 N.m (10.3 ksf.m. 74.5 lbt.ftlLeft-hand threads
ffi
FrNAL DRTvEN o*^r'@c'ec'owea'-Zl
BALL BEARINGCheck for wear and damage.
13-30
Backlash Inspection
'1. Place differential assembly on V-blocks, and installboth driveshafts.
OIAL
Measure backlash of both pinion gears.
Standard {New); 0.05 - 0.15 mm {0.002 - 0.006 in)
lf the backlash is not within the standard, reDlacethe differential carrier.
SI