1994 HONDA INTEGRA engine

INTRODUCTION
How to Use This Manual
This manual is divided into 23 sections. The first page of each sec-
tion is marked with a black tab that lines up with its corresponding
thumb index tab on this page and the back cover. You can quickly
tind the tirst page of each section without looking through a full ta-
ble of contents. The svmbols printed at the top corner of each page
can also be used as a quick reference system.
Each section includes:
1. A table of contents. or an exploded view index showing:
a Parts disassemblv sequence.
a Bolt toroues and thread sizes.
a Page references to descriptions in text.
2. Disassemblv/assembly procedures and tools.
3. InsDection.
4. Testing/troubleshooting.
5. Repair.
6. Adiustments.
Special Information
@ lnai""tes a strong possibility of sevor€ pelsonal iniury
01 loss of life it instructions al€ not tollowed.
CAUTION: Indicates a possibility ot personal inlury or oquipmont
damage if instructions ale not followed.
NOTE: Gives helpful information.
CAUTfON: Detaifed doscriptions ot standad workshop procedures,
salety principlos and servica opelations are not included Pleaso note
that this manual conlains warnings and cautions against somo spocif-
ic sgrvice methods which could cause PERSONAL INJURY, damage
a vehicle or make it unsafe. Pleaso understand that those warnings
cannot cover all conceivablc waYs in which service, whethea or not
recommended bv HONDA, might be done, or of the possibla
hazardous consequences of svery conceivable way, nor could
HONDA investigate all such ways. Anyone using seryice plocedures
or toofa, whethor 01 not recomonded by HONDA, ,nust sttisfY him-
sett thoroughly that neither personal saf€ty nor v€hicle safety will
be jaopaldized.
All information contained in this manual is based on the latest product
information available at the time of printing. We reserve the right
to make changes at any time without notice. No part of this publica-
tion mav be reproduced, stored in retrieval system, or transmitted,
in any Jorm by any means, electronic, mechanical, photocopying,
recording, or otherwise, without the prior written permission of the
publisher. This includes test. figures and tables.
Specificationstrtl:{lt'
Maintenance4Pi
Engine
H
I-""
Fuel and Emissions Za
*Transaxle
*Steeringr-\
lDl\.t/
* Brakes
(lncludins !TEg)o
*Electrical J--*
(lncludins ISBE)
First Edition 7/93 1448 pages
All Rights Reserved
Specifications Apply to U.S.A. and Canada
HONDA MOTOR CO.,LTD,
Service Publication ottice
As sections with r includ€ SRS components.
special precautions are lequiled when servicing.

Chassis and Paint Codes
U.S.Model
Vehicle ldentification Number
Manutactulol, Make and
Typ€ of Vshicle
JH4: HONDA MOTOR CO., LTD.
ACURA Psssenger car
Line, Body and Engino Type
DB7: INTEGRA 4-door/B1 881
DB8: INTEGRA 4-door/81 8Cl
DC2: INTEGRA 3-door/B18C 1
DC4: INTEGRA 3-door/B1 8B j
Body Type and Trsnsmission Type
3: 2-door Hatchback S-speed Manual
4: 2-doot Hatchback 4-speed
Automatic
5; 4-door Sedan s-speed Manual
6: 4-door Sedan 4-speed Automatic
Vehicle Glado (Seriesl
4: RS
5: LS
8; GS-R
Check Digit
Model Yaal
R: 1994
Factory Code
S: Suzuka Factory in Japan
Serial Numb€l
Vehicle ld€ntification Number and
JH4DB754* RSOOOOO 1
I
Engine Number
8l8Br-r300@l-----T-----
Engine Typ6
81881: 1.8 f DOHC Sequentiat Muhi-pori
Fuel-injected engine
B l8Cl : 1.8 | DOHC VTEC Sequ€nrial
Multi-port Fu€l-iniected €ngin€
Se al Numbel
Paint Code
COLOR
BG.33P
Federal Motor Vehicle Safety Standard Certification
Transmission Numbsr
Y80- 1 000@ I
Transmission Type
Y80: Manual
MPTA: Automatic
Serial Numbel
Paint Code
Paint CodeColor
BG.33P
G-71P
NH-5O3P
NH-538
NH-575M
R-7 2P
R-81
RP.24P
YR.5O3M
Paradise Blue-g.€en PeErl
Lausanne Gr6en Pead
Grsnada Black Pea.l
Frost White
Thunder Grav Metallic
Torino Red Pearl
Milano Red
Stealth Gray Pearl
Rosewood Brown M€tallic
1-2
3DOOR4DOOR

Canada Model
Vehicle ldentification Numbel
Manutacturer, Makeand
Type of v€hicle
JH4: HONDA MOTOR CO., LTD.
ACURA Passenger car
Lino. Body and Engine TYPo
D87: INTEGRA 4-doot/Bl 881
DC2: INTEGRA 3-dootBl 8C1
DC4: INTEGRA 3-doori B18B1
Body Type and Transmission TYPo
3: 2-door Hatchback 5-speed Manual
4'. 2-door Hatchback 4-speed
Automatic
5: 4-door Sedan s-speed Manual
6: 4-door Sedan 4-speed Automatic
Vehicle Grade {Sedes}
3: RS without passenger SRS airbag
4: RS with passenget SRS aitbag
8: GS-R
Check Digit
Model Yeat
R: 1994
Factory Code
S: Suzuka Factory in Japan
Serial Numbel
JH4DB753. RS800001
Engine Number
81881-1 700001
Engin€ Type
81881: 1.8 I DOHC Sequential Multi-port
Fuel-injected engine
B18C1: 1.8 I DOHC VTEC Sequential
Multi-Dort Fuel-iniected engrne
Serial Number
Paint Code
COLOR
BG.33P
Vehicle ldentification Number and
Canadian Motor Vehicle Safety Standard Certification
Transmission Number
Y80-1000001
Transmission Type
Y80: Manual
MPTA: Automatic
Serial Numbel
Paint Code
Paint CodeColor
Paradise Blue-green Pearl
Lausanne Green Pearl
Granada Elack Pearl
Frost White
Thunder Gray Metallic
Torino Red Pearl
Milano Red
Stealth Gray Pearl
Rosewood Brown Metallic
BG.33P
G-71P
NH-5O3P
NH-538
NH-575M
R-72P
R-81
RP-24P
YR-503M
3DOOR4DOOR
1-3

J: GLOVE BOX INFORMATIOf{
AIBBAG INFORMANO
SUPPLEMENTAL RESTiAINT SYSTEM (SRS)
. THE SRS MUST BE INSPECTED TEN YEARS AFTER IT
IS INSTALLED. TI{E DATE OF INSTALLATION IS SHOWN
ON THE CERTTFICATION PLATE, LOCATED ON THE
DRIVER'S DOOR JAMB.
. DIAGNOSTIC CHECKS AND REPLACEMENT OF SNS
COMPONENTS MUST BE DONE BY AN AUTHORIZED
DEALER
. SEE YOUR OWNER'S MANUAL FOR AODITIONAL SRS
INFORMATION.
K: FRONT SEAT PASSENGER INFLATOR WARNING TAG
A WARNING
ACCIDENTAL AIRBAG DEPLOYMENT CAN SERIOUSLY
HURT OR KILL YOU.
INSTALL THE RED SERVICE CONNECTOR WHEN THE IN-
FLATOR HARNESS IS DISCONNECTED
L: FRONT SEAT PASSENGER MODULE DANGER
A DANGER
EXPLOSIVE/FLAMMABLE
CONTACT WITH ACID, WATER OR HEAVY METALS SUCH
AS COPPER. LEAD OR MERCURY MAY PRODUCE HARM'
FUL AND IRRITATING GASES OR EXPLOSIVE COM.
POUNDS.
STORGE TEMPERATURES MUST NOT EXCEED 2OOOF
tlOO"CI. FOB PROPER HANDLIING, STORAG€ AND DIS-
POSAL PROCEDURES REF€B TO THE SERVICE MANUAL,
SBS SUPPLEMENT.
POTSON
CONTAI'\'S POISONOUS SODIUM AZIOE AND POTASSIUM
NITRATE.
FIRST AID
IF CONTENTS ARE SWALLOWED, INDUCE VOMITING.
FOR EYE CONTACT, FLUSH EYES WITH WATER FOR 15
MINUTES.
IF GASES (FROM ACID OR WATER CONTACT) ARE IN.
HALED, SEEK FRESH AIR. IN EVERY CASE. GET PROMPT
MEDICAL ATTENTION.
KEEP OUT OF REACI.I OF CHILDREN.
A' WARNING
THE AIRBAG INFLATOR IS EXPLOSIVE AND. IF ACCIDEN-
TALLY DEPLOYEO, CAN SERIOUSLY HURT OR KILL YOU.
. DO NOT USE ELECTRICAL TEST EOUIPMENT OR PROB.
ING DEVICES.
THEY CAN CAUSE ACCIOENTAL DEPLOYMENT.
. NO SERVICEAALE PABTS INSIDE. OO NOT OISAS-
SEMBLE.
. PLACE AIRBAG UPFIGHT WHEN REMOVED.
. FOLLOW SERVICE MANUAL INSTRUCTIONS
CAREFULLY.
fi{lHfiFe*% _
1-7
M: AIRBAG LABEL
AIRBAG
N: SRS WARNING IENGINE HOODI
SUPPLEMENTAL RESTRAINT SYSTEM (SBSI
THIS VEHICLE IS EOUIPPED WITH DRIVER SIDE AIRBAG.
ALL SRS ELECTRICAL WIRING AND CONNECTORS ARE
COLORED YELLOW.
TAMPERING WITH, DISCONNECTING OR USING ELECTRI-
CAL TEST EOUIPMENT ON TI{E SRS WIRING CAN MAKE
THE SYSTEM INOPERATIVE OB CAUSE ACCIOENTAL FIR'
ING OF THE INFLATOR.
A. WANING
THE AIRBAG INFLATOR IS EXPLOSIVE AND, IF ACCIDEN-
TALLY DEPLOYED, CAf{ SERIOUSLY HURT YOU'
FOLLOW SERVICE MANUAL INSTRUCTIONS CAREFULLY.
SUPPLEMENTAL RESTRAINT SYSTEM {SRSI
THIS VEI{ICLE IS EOUIPPED WITH DRIVER ANO FRONT
SEAT PASSENGER AIRBAGS.
ALL SRS ELECTRICAL WIRING AND CONNECTORS ARE
COLORED YELLOW.
TAMPENING WITI{, DISCONNECTING OR USI G ELECTRI'
CAL TEST EOUIPMENT ON THE SRS WIRING CAN MAKE
THE SYSTEM INOPERATIVE OR CAUSE ACCIDENTAL FIB'
ING OF THE INFLATOB.
A WABNING
THE AIRBAG INFLATOR IS EXPLOSIVE AI{O, IF ACCIDEN-
TALI-Y DEPLOYED, CAN SEBIOUSLY HURT YOU'
FOLLOW SERVTCE MANUAL INSTRUCTIONS CAREFULLY.
N: SRS WARNING IENGINE HOODIi
'This vorsion
passonger's
ol tho labol is u36d in cs.t with a front soat
airbag.
{cont'd)

Towing
rl
It the car needs to be towed, call a professional towingservice. Never tow the car behind another car with just
a rope or chain. lt is very dange.ous.
Emergency Towing
There are three popular methods of towing a car:
Flat-bed Equipmont-The operator loads the car on theback of a truck. This is the best way of transporting thecar.
Whsol Lift Equipment-The tow truck uses two oivot-ing arms that go under the tires (front or rear) and liftsthem otf the ground. The other two wheels remain onthe ground.
Sling-type Equipmont-The tow truck uses metal cableswith hooks on the ends. These hooks go around partsof the frame or suspension and the cables lift that endof the car off the ground. The car's suspension and bodvcan be seriously damaged if this method of towing is at-tempted.
It the car cannot be transponed by flat-bed, it should betowed with the tfont wheels oft the ground. lf due todamage. the car must be towed with the front wheelson the ground, do the tollowing:
Manual Transmission
a Release the parking brake,a Shift the transmission to Neutral.
Automatic Transmission
a Release the parking brake.a Start the engine.
a Shift to @ oosition, then to S position.
a Turn off the engine.
NOTICE: lmproper towing preparation will damage thetransmission. Follow the above procedure exactly. lf you
cannot shift the transmission or stan the engine (auto-
matic transmission), your car must be transDorted on aflat-bed.
a lt is best to tow the car no tarther than SO miles lgokm). and keep the speed below 3b mph (bE km/h).
NOTICE: Trying to litt or tow your car by the bumperswill cause serious damage. The bumpers are not designedto support the car's weight.
Front:
Real:
TOWING HOOKS

Standards and Service Limits
Cylinder Head/Valve Train (B188t enginelSecti6
*: Measured between the camshaft and rocker arm.
NH: NIHON HATSUJO manufactur€d valve spring
CH: CHUO HATSUJO manufacturod valve sDrino
- Declron
MEASUREMENTSTANDARD {NEWI '
SERVICE LIMIT
Compression250 rpm and wide open th.ottl€ Nominal
kPa (kgflcm?, psi) Minimum
Maximum variation
1,370 (14.0, 199)
930 (9.5, 140)
200 t2.0,2a)
Cylinder h.adW6rpage
Heightr31.95- 132.05 (5.195 - 5.199)
0.05 (0.002)
CamshaftEnd play
Camshaft-to-holder oil clearance
Total runout
Cam lobe height tN
EX
0.05 - 0.15 (0.002 - 0.0061
0.030 - 0.069 10.0012 - 0.0027)
0.03 (0.001) max.
33.7 16 11 .327 1l
33.528 (1.3200)
0.5 (0.02)
0.1s {0.006)
0.04 (0.002)
Valve clearance (Cold)* lN
EX
Valve stem O.D. tN
EX
Stem-to-guide clearance lN
EX
0.08 - 0.12 {0.003 - 0.005)
0.'r 6 - 0.20 (0.006 - 0.008)
6.580 - 6.590 (0.2591 - 0.2594)
6.550 - 6.s60 (0.2579 - 0.2583)
0.02 - 0.0s (0.001 - 0.002)
0.05 - 0.08 (0.002 - 0.003)
6.s5 (0.258)
6.52 (0.257)
0.0810.003)
0.11 (0.004)
width tN
EX
Stem instslled height tN
EX
r.25 - 1.55 (0.049 - 0.061)
1.25 - 1.55 {0.049 - 0.061)
40.765 - 41.235 (1.6049 - 1.6234)
12.763 - 43.235 t1,6a37 - 1.7022)
2.0 t0.08)
2.0 (0.08)
41.485 (1.6333)
43.485 (1.7120)
Valve springFree length {Reference} lN
EX NH
CH
42.36 (1.668)
47.09 {1.854}
47.08 (1.854)
41.s6 {1.636)
46.27 tl.A22l
46.21 l1.a22l
Valv6 guideLu. lN
EX
Installed height lN
6.61 - 6.63 (0.260 - 0.261)
6.61 - 6.6s (0.260- 0.261)
13.75 - 14.25 {0.541 - 0.561}
r5.75 - 16.25 10.620 - 0.640)
6.65 (0.262)
6.6510.2621
3-2

k (81881
Ri RIKEN manutacture Piston ring
T:TEIKOKU PISTON RING manufacture piston ring
7scti
Unit of length: mm {in}
Engine Block {Bl6E1 englnel - sectlon
MEASUNEMENTSTANDARD (NEWI SERVICE LIMIT
bottom of skirt
Top
Second
oil--
top
Second
'....=-
lop
Ring to-groove clearance
Ring end gap
o.D.
Pin-to-piston clearance
Pin-to-rod interference
Smallend bore diameter
Large end bore diameter
End play installed on crankshatt
Main journal diameter
Warpage ot deck sLrrface
Bore diameter
Bore taPer
Reboring limit
Skirt O.D. at 15 mm (0.6 in)Irom
Clearance in cylinder
Groove width (For ring)
R
T
;
T
No. 1, 2, 4 and 5 journals
No. 3 iournal
Rod iournal diameter
Taper
Out-of round
End play
Runout
Main bearing-to-iournal oil clearance
No. 1, 2, 4 and 5 journals
No. 3 journal
Rod bearing to-iournal oil clearance
Second
oit R
T
Nominal
0.0710.003)max.
81.00 - 81.02 {3.189 - 3.190)
0.10 (0.004)
81.07(3.192)
0.05 (0.002)
0.25 (0.010)
Cylinder block
80.98 - 80.99 (3.188 - 3.189)
0.01 - 0.04 (0.0004 - 0.0016)
1.030 - r.010 (0.0406 0.0409)
1.230 - 1.210 (0.0484 - 0.0488)
2.805 - 2.820 (0.1104 0.1110)
80.9713.188)
0.05 (0.002)
1.0610.042)
1.26 (0.050)
2.8410.112\
Piston
0.045 - 0.070 {0.0018 - 0.0028}
0.040 - 0.065 (0.0016 - 0.0026)
0.045 - 0.070 (0.0018 - 0.0028)
0.13 {0.00s)
0.13 (0.00s)
0.13 (0.005)
0.60 {0.024)
0.60 10.024)
0.70 (0.028)
0.70 (0.028)
0.70 (0.028)
Piston ring
0.20 - 0.35 (0.008 - 0.014)
0.20 0.30 (0.008 - 0.012)
0.40 - 0.5s (0.0 r6 - 0.022)
0.20 - 0.s0 (0.008 - 0.020)
0.20 - 0.45 (0.008 - 0.0181
20.994 - 21.000 (0.8265 - 0.8268)
0.0r0 - 0.022 (0.0004 - 0.0009)
rrston rln
0.013 - 0.032 (0.0005 - 0.0013)
20.968 - 20.981 (0.825s - 0.8260)
48.0 (1.89)
0.1s - 0.30 (0.006 - 0.012)
Connecting rod
54.976 - 55.000 (2.1644 - 2.1654)
54.970 - 54.994 (2.1642 - 2.1651)
44.S76 - 45.000 {1.7707 - 1.7717}
0.00510.0002) max.
0.005 (0.0002) max.
0.10 - 0.35 (0.004 - 0.014)
0.03 (0.001) max.
0.010 (0.0004)
0.010 (0.0004)
0.45 (0.018)
0.04 {0.002)
Crankshaft
0.024 0.042 {0.0009 - 0.0017)
0.030 0.048 {0.0012 - 0.0019}
0.020 0.038 (0.0008 - 0.0015)
0.05010.0020)
0.060 (0.0024)
0.050 (0.0020)
Bearing
3-3

Standards and Service Limits
Cylander Head/Valve Train (B18Cl enginelSection 6
': M€asured betwoon the camshatt and rcc(er srm.
NH: NIHON HATSUJO manufacture v6lve spring
CH: CHUO HATSUJO manufscturo v6lve spring
MEASUBEMENTSTA]TDARD INEWISERV|C€ UM|T
Compr€6sion250 rpm and wide op€n throttle Nomin6l
kPa lkgl/cmr, psi) Minimum
Maximum variation
1,860 (19.0, 270)
930 (9.s, 140)
200 t2.o,2a)
Cylind6r hoadWarpage
H6ight'r41.95 - 1C2.05 (5.s89 - 5.593)
0.05 {0.002)
C.mshsftEnd play
Camshaft-to-holdsr oil clearance
Total runout
Cam lobo height lN Primery
Mid
Socondary
EX Primary
Mid
Secondary
0.05 - 0.1s (0.002 - 0.006)
0.050 - 0.089 (0.0020 - 0.0035)
0.015 (0.0006) max.
33.411{1.3154)
36.377 tl.13221
34.547 (1.3601)
33.1110.3036)
35.72011.4063)
34.381 {1.3536)
0.5 (0.02)
0.15 {0.006)
0.03 (0.001)
Valvo clorrance lcoldl* lN
EX
Valve stem O.D. lN
EX
Stom-to-guid6 clerrsnco lN
EX
0.15 - 0.19 {0.006 - 0.007}
0.17 - 0.21 (0.007 - 0.008)
5.475 - 5.48s (0.2156 - 0.21591
5.450 - 5.460 (0.2146 - 0.21s0'
0.025 - 0.055 {0.00'10 - 0.0022}
0.050 - 0.080 (0.0020 - 0.0031)
5.11510.21441
s.420 {0.2134)
0.08 10.003)
0.11{0.(x)4)
Valvo seatWidth tN
EX
Sr6m installed h€ight lN
EX
1.25 - 't.5s (0.049 - 0.06't)'1.25 - 1.s5 {0.049 - 0.061)
37.465 - 37.935 ('1.4750 - 1.4935)
37.16s - 37.635 t1.4632 - 1.4817)
2.0 (0.08)
2.0 (0.08)
38.185 (1.5033)
37.885 (1.491s)
Valv€ BpringFre6length (Roferenca) lN Outer
Inner NH
CH
EX NH
CH
41.05 (r.6161
36.'16 {1.4241
36.19 t1.425)
41.96 (1.652)
41.94 {1.651)
40.26 (1.585)
35.30 (1.390)
35.30 (1.390)
40.95 (1.612)
40.95 (1.612)
Valve guidol.D. tN
EX
Instslled hoight lN
EX
5.51 - 5.53 (0.217 - 0.218)
5.5r - 5.53 {0.2r7 - 0.218)
12.55 - r3.0s (0.494 - 0.514)
12.55 - 13.05 (0.494 - 0.s14t
5.55 (0.219)
5.5s {0.219}
Rock€r ermArm-to-shaft clearance lN
EX
0.025 - 0.0s2 {0.0010 - 0.0020)
0.025 - 0.0s2 (0.0010 - 0.0020)
0.08 (0.003)
0.08 (0.003)
3-4