1999 HONDA CIVIC Valves

The following symptoms can be caused
by improper repair or assembly
Check these items,on th€^ ltems on thePROBABLE CAUSE DUE TO NOTES ListIMPROPER REPAIR List
Vehicle creeps in N position.R1, R2
Vehicle does not move in &l or Pll position.R4
Transmission locks up in E position.R3, R11
Excessive drag in transmission.R6K,R
Excessive vibration, rpm related.R7
Noise with wheels moving onlY.R5
Main seal pops out.R8
Various shifting problems.R9, RlO
PROBABLE CAUSE DUE TO IMPROPER REPAIR
lmproper clutch clearance.
lmproper gear clearance.
Park lever installed upside down.
one-way {sprag) clutch installed upside down.
Reverse selector hub installed upside down.
ATF pump binding.
Torque converter not fully seated in ATF pump.
Main seal improperly installed.
Springs improperly installed.
Valves improperly installed.
Shift fork bolt not installed.
14-11

Symptom-to-Component Chart
Hydraulic System (cont'dl
G.
n,
set idle rpm in gear to specified idle speed. lf still no good, adjust motor mounts as outlined in enginesection of this manual.
lf the clutch pack is seized or is excessively worn. inspect the other clutches for wear, and check the orificecontrol valves, CPC valve and linear solenoid for free movement.
lf the linear solenoid is stuck, inspect the clutches for wear.
lmproper alignment or main valve body and torque converter housing may cause ATF pump seizure. Thesymptoms are mostly an rpm-related ticking noise or a high-pitched squeak.
lf the l st clutch feed pipe guide in the end cover is scored by the mainshaft, inspect the ball bearing forexcessive movement in the transmission housing. lf oK, replace the end cover as it is dented. The o-rinounder the guide is probably worn.
Replace the mainshaft if the bushing for the 4th feed pipe is loose or damaged. lf the 4th feed pipe is danFaged or out of round, replace the right side cover.
Replace the mainshaft if the bushing for the 1st feed pipe is loose or damaged. lf the 1st feed pipe is darn-aged or out of round, replace it.
A worn or damaged sprag clutch is mostly a result of shifting the transmission inthe wheels rotate in reverse, such as rocking the vehicle in snow.
or E position while
Inspect for damage and wear:
1. Reverse selector gear teeth chamfers.
2. Engagement teeth chamfers of countershaft 4th and reverse gear.
3. Shift fork for scuff marks in center.
4. Differential pinion shaft for wear u nder pin ion gears.
5. Bottom of 3rd clutch for swirl marks.
Replace items 1,2,3 and 4 if worn or damaged. lf transmission makes a clicking, grinding orwhirring noise,also replace mainshaft 4th gear, reverse idler gear. and countershaft 4th gear in addition to 1, 2, 3 or 4.lf differential pinion shaft is worn, overhaul differential assembly, and replace ATF strainer, and thoroughlyclean transmission, flush torque converter, cooler and lines.lf bottom of 3rd clutch is swirled and transmission makes gear noise, replace the countershaft and final drivengear.
Be very careful not to damage the torque converter housing when replacing the main ball bearing, you
may also damage the ATF pump when you torque down the main valve body. This will result in ATF pumpseizure if not detected. Use the oroper roors.
Install the main seal flush with the torque converter housing. lf you push it into the torque converterhousing until it bottoms out, it will block the fluid return passage and result in damage.
See flushing procedure, page 14-187 and 188.
lf the large clutch piston O-ring is broken, inspect the piston groove for rough machining.
lf the l-2 shift valve is stuck closed, the transmission will not upshift. lf stuck open, the transmission hasno 1st gear.
lf the znd orifice control valve is stuck. inspect the 2nd and 3rd clutch oacks for wear.
lf the 3-4 orifice control valve is stuck, inspect the 3rd and 4th clutch oacks for wear.
lf the clutch pressure control valve is stuck closed, the transmission will not shift out of 1st gear.
lf the ATF strainer is clogged with particles of steel or aluminum, inspect the ATF pump and differentialpinion shaft. lf both are OK and no cause for the contamination is found, replace the torque converter.
Inspect the frame for collision damage.
14-112

Valve Body
2.
Repair
NOTE: This repair is only necessary if one or more of
the valves in a valve body do not slide smoothly in their
bores. You may use this procedure to free the valves in
the valve bodies.
1. Soak a sheet of #600 abrasive paper in ATF for
about 30 minutes.
Carefully tap the valve body so the sticking valve
drops out of its bore.
CAUTION: lt may b€ necessary to use a small
screwdriver to pry the valve free. Be careful not to
scratch the bore whh the screwdriver.
Inspect the valve for any scuff marks. Use the ATF-
soaked #600 paper to polish off any burrs that are
on the valve, then wash the valve in solvent and dry
it with compressed a ir.
Roll up half a sheet of ATF-soaked paper, and insert
it in the valve bore of the sticking valve.
Twist the paper slightly, so that it unrolls and fits the
bore tightly, then polish the bore by twisting the
paper as you push it in and out.
CAUTION: The valve body is aluminum and doesn't
require much polishing to remove any burrs,
3.
4.
ATF-soaked#600 abrasive Paper
5.
7.
Remove the #600 paper and thoroughly wash the
entire valve body in solvent. then dry it with com-
pressed air.
Coat the valve with ATF, then drop ir into its bore.
It should drop to the bonom of the bore under its
own weight. lf not, repeat step 4, then retest.
VALVE BODY
Remove the valve. then thoroughly clean it and the
valve body with solvent. Dry all parts with com-
pressed air. then reassemble using ATF as a lubri
cant.
W
-M
14-139

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

Secondary Valve Body
Disassembly/lnspection/Reassembly
NOTE:
. Cleanall parts thoroughly in solvent or carburetor cleaner. and drywith compressed air, Blowoutall passages.
. Replace the secondary valve body kit. P/N 27700 - P4R - 315 (The secondary valve body kit includes the linear solenoid
assembly) if any parts are worn or damaged.
. Checkall valves for free movement. lf anyfailto slide freely, seeValveBody Repairon page 14-139,
. Coat all parts with ATF during assembly.
. The CPC valve is installed in the secondary valve body, held in place by the lock bolt.
2.3 SHIFT VALVE
3.4 SHIFT VAL
.TH EXHAUST VALVE
LOCK BOLTCAUTION: Do not move.
SECONDARY VALVE BODYInspect for wear, scratches 6ndscoring.
3-'l ORIFICE CONTROL VAL
VALVE
SPRING SPECIFICATIONSUnit: mm (in)
No.SpringsStandard {New)
Wire Dia.o.D.Free LongthNo. of Coils
ora,.n
3-4 shift valve spring
2-3 sh ift valve spring
4th exhaust valve spring
3-4 orifice control valve spring
0.910.035)
0.9 {0.035)
0.9 {0.035)
0.7 {0.028)
7.6 (0.302)
7.6 (0.302)
6.1 10.2421
6.6 (0.262)
57 .O 12.2441
57 .O 12.2441
36.4 (1.433)
37.5 (1.476)
26.8
26.8
24.6
14-144

Regulator 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 parts are worn or damaged.
. check allvalves for free movement. lf anyfail toslidetreely, see valve Body Repairon page 1+139.
1. Hold the regulator spring cap in place while removing the stop bolt. once the stop bolt is removed. release the spring
cap slowly.
CAUTION: The regulator 3pring cap can pop out when the stop boh is removod'
2. Reassembly is the reverse order ofths disassembly procedure.
NOTE:
o Coat all parts with ATF during assembly.
. Align the hole in the regulator spring cap with the hole in the valve body, then press the spring cap into the valve
body, and tighten the stop bolt.
STOP BOLT6x1.0mm12 N.m 11.28.7 tbf.lrl
^/^'ou*'oRsPRrNGcAP
*N@
REGULATOR VALVE
\=f -.-*
*fi /F { a-tLocK.uPcoNrRoLvALVE
cooLERRELlEFvALVr"r?
ry
roRouE coNvERrER cHEcKv ^LvE//
v ^r* "r**::f vi{LvE cAp
SPRING SPECIFICANONS
REGULATOR VALVE BODY
Inspect lor wear, scratches
and scorlng.
Unit: mm (in)
No,Springe
Standard (Now)
Wire Dia.o.D.Free LengrthNo. of Coils
o
o
@
@
@
Regulator valve sPring A
Regulator valve spring B
Stator reaction spring
Cooler relief valve spring
Torque converter check valve spring
Lock-up control valve sPring
1.8 {0.07'r)
1.8 (0.071)
4.5 (0.177)
1.0 (0.039)
1.0 (0.039)
0.7 (0.028)
'r4.7 (0.584)
9.6 (0.381)
35.4 (1.407)
8.4 {0.334)
8.4 {0.334}
6.6 {0.262}
87.8 (3.457)
44.0 (1.732)
30.3 (1.193)
33.8 (1.331)
33.811.3311
38.0 {1.4961
11.0
1.9
8.2
a.2't 4.1
14-145

Lock-up Valve BodY
Disassembly/lnspection/Reassembly
NOTE:
. Clean all pans thoroughly in solvent or carburetor cleaner' and dry with compressed air' Blow out all passages'
a Replace the valve body as an assembly if any parts are worn or d€maged'
. Checkall valves for free movement ttanytaitio stlae freely' see Valve Body Repairon page 14-'139'
. Coat all parts with ATF during assembly
LOCK.UP VALVE BODY
Inspect for wear, scratchesand sconng.
VALVE CAP
LOCK-UP TIMING VAL
SPRING SPECIFICATIONSUnit: mm (in)
73.1 t2.902J
ao.7 13.'17717.6 (0.302)
8.1 (0.319)Lock-up shift valve sPrang
Lock-up timing valve sPrlng
14-147

Transmission
Reasembly
NOTE;
. Coat all parts with ATF.. Beplace the following parts:- O-rings- Lock washers- Gaskets- Mainshaft and countershaft locknuts and conical spring washers- Sealing washers
TOROUE: l2 N.m (1.2 ksf'm,8.7 lbf.ft)
6 x 'l.0 mm7 BoltsFEED PIPE: A
LOCK.UP VALVEBODY
LOCK.UP SEPARATORPLATE
REGULATOR VALVEBODY
DOWEL PINS. 2
6xl.0mm1 BoltATF STRAINERATF FEEDPIPES:
a
COOIER RELIEF VALVE
TOROUE CONVENIERCHECK VALVESTATOR SHAFT
O.RING
STOP SHAFT
ATF FEEO PIPE: H
5x1.0mm5 Bolts
DOWEL PINS.
MAIN VALVE BODY
ATF PUMP
SERVO SEPARATORPLAYE
6x1.0mm7 Bolts
SERVO BODY
SECONOARYSEPARATOR PLATE
CONTROL
GEAR SHAFT
ATF PUMP DFIVENGEAR
MAIN SEPARATORPLATE
DOWEL PINS,
/ SHAFI
' -
7r(
t'se - oo ^od"t"t
lli
triTOROUE CONVERTERHOUSING
NOTE: The illustration shows the'96 - 98 modsls, the'99 - 00 models do not have the servo detent base; the servodetent is integralwith the servo bodv.
14-176
L-