1998 HONDA CIVIC main fi

ATF Pump
Inspection
1. Install the ATF pump gears and ATF pump driven
gear shaft in the main valve body
NOTE:
. Lubricate all parts with ATF during inspection.
. Install the ATF pump driven gear with its grooved
and chamfered side facing up as shown.
MAIN VALVE BODY
ATF PUMP ORIVEN GEAR
Grooved and chamfe.ed side
2. Measure the side clearance of the ATF pump drave
and driven gears.
ATF Pump Gears Side {Radial) Clearance:
Standard (New):
ATF Pump Drive Gear
0.105 - 0.1325 mm {0.004 - 0.q)5 in}
ATF Pump Drivsn Gear
0.035 - 0.0625 mm (0.0014 - 0.0025 inl
MAIN VALVE SOOY
YZ]
o?
ATF PUMPDRIVE GEAR
ATF PUMPDRIVEN GEARInspect teeth for wear and damage
lnspect teeth for wear and damage.
3. Remove the ATF pump driven gear shaft. Measure
the thrust clearance of the ATF pump driven gear-
to-valve bodY.
ATF Pump Drive/Drivon Gear Thrust {Axial} Cloarance:
Standard (Now): 0.03 - 0.05 mm 10'001 - 0.002 inl
Sorvice Limit: 0.07 mm (0.003 in)
1+141

Main Valve Body
Disassembly/lnspection/Reassembly
NOTE:
. Cleanall parts thoroughly in solvent or carburetor cleaner, and drywith compressed air. Blowoutall passages.. Replace the valve body as an assembly if any pans are worn or damaged.. Check all valves for free movement. lf anyfail toslidefreely, see Valve Body Repairon page,l4-139.. Coat all parts with ATF during assembly.
CAUTION: Do not use a magnet to removs tha check balls; it may magnetizo the balls.
CPB VALVEVALVE CAP CLIP
ORIFICE CONTROL VALVE
BALLS, 8
lST ACCUMULATOR CHOKE
MODULATORVALVE
RELIEF VALVEVALVE
MAIN VALVE EODYInspect for wear, scratchesand scoring.
SEBVO CONTROL VAL
I.2 SHIFT VALVE
14-142
VALVE CAP

CHECK BALL
w
MAIN VALVE BODY(Sectional viewl
SPRING SPECIFICATIONS
CHECK BALLS
CHECK BALLS
Unit: mm (in)
No.Springs
Standard (New)
Wire Dia.o.D.Free LengthNo. ot Coils
o
@
@
@
@
@
Relief valve spring
Modulator valve spring
CPB valve spring
1-2 shift valve spring
2nd orifice control valve spring
Servo control valve spring
1.1 (0.043)'1.4 (0.055)
0.9 (0.035)
0.9 (0.035)
0.7 (0.028)
1.0 (0.039)
8.6 (0.342)
9.4 (0.374)
8.1 t0.3221
7.6 {0.302)
6.6 (0.262)
8.'t to.322l
37.1 (1.461)
35.0 (1.378)
47.2 (1.8s8)
41.3 (1.6261
34.8 (1.370)
52.1 t2.O51l
13.4
10.91C ?'15.3
22.0
20.8
1+143

Mainshaft
Disassembly/lnspestion/Reassembly
NOTE:
. Lubricate all parts with ATF during reassembly..Inspectthethrustneedlebearingsandtheneedlebearingsforgallingandroughmovement,
. Before installing the O-rings, wrap the shaft splines with tape to prevent damaging the O_rings.. Locknut has left-hand threads.
LOCKNUT {FLANGE NUTI21 x 1.25 mm78 N.m (8.0 kgl.m,58 lbt.fttReplace.Left-hand threadsSNAP RINGCONICAL SPRING WASHERReolace.
lST CLUTCHASSEMBLYTHRUST WASHER
THRUST NEEOI.EBEARING
4TH GEAN
O-RINGSReplace.
THRUST WASHER
THRUST NEEDLEBEARING
MAINSHAFTCheck splines for excessivewear and oamage.Check bearing surtace for scoring,scratches and excessive wear.
BEARINGBEARINGS
THRUST NEEDLEBEABING
4TH GEAR COLLAR
2ND/4TH CLUTCHASSEMBLY
THRUST NEEDLEEEARING
2NO GEAB
NEEDLE BEABING
THRUST NEEDLEBEARING
1ST GEAR
1ST GEARCOLLAR
TRANSMISSIONHOUSING BEARING
O-RINGSReplace.
THRUST WASHER, 36.5 x 55 mmSelective part.
SEALING RINGS,35 mm
Install the sealing ringmating faces as shown,
RING,29 mm
NEEDLE BEARING
SET RING
14-148

Inspection
a Clearance Measurement
NOTE: Lubricate all parts with ATF during assembly.
1, Remove the mainshaft bearing from the transmis-
sion housing (see Page 14-1741.
2. Assemble ths parts below on the mainshaft.
NOTE: Do not assemble the O-rings during inspec-
tlon.
LOCKNUTCONICAL SPRIIIG WASHER
SNAP RING
lST CLUTCH ASSEMBLY
TXRUST WASHER
1ST GEAR COLLAR
TRA SMISSIONHOUSII{G BEARING
THRUST WASHER
4TI{ GEAR COLLAR
2ND/4TH CLUTCHASSEMBLY
THRUST WASHER36.5 x 55 mmSelective part.
THBUST NEEDLEBEARING
2ND GEAR
AEABII{G
IHRUST NEEDLEBEARING
MAINSHAFT
3. Torque the mainshaft locknut to 29 N'm (3.0 kgf'm,
22 tbt,ftl.
NOTE: Mainshaft locknut has left-hand threads.
29 N'm t3.0 kgl'm, 22 lbt'ft)
Hold 2nd gear against the 2nd clutch' then measure
the clearance between 2nd gear and 3rd gear with a
feeler gauge.
NOTE: Take measurements in at least three places,
and use the av€rage as the actual clearance'
STANDARD: 0.05 - 0.13 mm 10.002 - 0.005 in)
THRUST WASHER,36.5 x 55 mm
(cont'd)
1+149

Mainshaft
Inspection (cont'd)
5.lf the clearance is out of tolerance, remove thethrust washer and measure the thickness.
THRUST WASHER
6. Select and install a new washer, then recheck.
THRUST WASHER 36.5 x 55 mm
After replacing the thrust washer, make sure theclearance is within tolerance.
7.
No.Part NumberThickness
190441 - P4P - 0104.00 mm (0.157 in)
90442-P4P-0104.05 mm (0.159 in)
90443-P4P-0104.10 mm (0.'161 in)
490444-P4P-0104.15 mm (0.163 in)
90445-P4P-0104.20 mm (0.165 in)
90446-P4P-0104.25 mm (0.167 in)
790447-P4P-0104.30 mm (0.169 in)
890448-P4P-0104.35 mm (0.171 in)
90449-P4P-0104.40 mm (0.173 in)
1090450-P4P-0004.45 mm (0.175 in)
b
14-150

Torque Converter Housing Bearings
Mainshaft Bearing/Oil Seal Replacement
1.Remove the mainshaft bearing and oil seal using
the special tools as shown.
3/8"16 SLIOE HAMMER
ADJUSTAELE BEARINGPULLER, 25 - ilo mm07736 - A01000a
L
14-172
2. Drive in the new mainshaft bearing until it bottomsin the housing using the special tools as shown.
DRIVER077€ - 0010000
lnstall the new oil seal flush with the housing using
the special tools as shown.
DBIVER07749 - 0o l0(xt0
ATTACHMENT,72x75 mfi07746 - 001 0600

Transmission Housing Bearings
L
Mainshaft/Countershaft Bearings Replacement
To remove the mainshaft and countershaft bearings
from the transmission housing, expand each snap
ring with snap ring pliers, then push the bearing out
using the special tools and a press as shown.
NOTE: Do not remove the snap rings unless it's
necessary to clean the grooves in the housing.
DRIVER07749 - 0010000
ATTACHMENT,62x68mm
PRESS
\
07746 -
DFIVEB07749 - 0010000
TTACHMENT
ATTACHMENT
. Mainshaft Bearing Installation us€:
ATTACHMENT. 72 x 75 mm
07746 - 0010600. Countershaft Bearing Installation use:
ATTACHMENT, 62 x 68 mm
077/16 - 0010500
IRN{L{r.)n
\bZ
MAINSHAFT BEARING
L
14-174
SNAP RING
Expand each snap ring with snap ring pliers, insert
the new bearing part-way into the housing using
the special tools and a press as shown, Install thebearing with the groove facing outside the housing.
NOTE: Coat all parts with ATF.
Release the pliers, then push the bearing down intothe housing until the ring snaps in place around it.
07749 - 0010000
ATTACHMENT
. Mainshaft Bearing Removal use:
ATTACHMENT, 72 x 75 mm
077/16 - 0010600. Counte6haft Bsaring Removal use:
ATTACHMENT, 62 x 68 mm
07746 - 0010500
After installing the bearing verify the following:
. The snap ring is seated in the bearing and hous-
ing grooves.
. The ring end gap is correct.
(0 - 0.28 in)ENDGAP:0-7mm