1994 HONDA INTEGRA Oil

EndPlay
NOTE; End play should be inspected before removing
crankshaft.
Push the crank firmly awav from the dial indicator, and
zero the dial against the end of the crank. Then pull the
crank firmly back toward the indicator; dial reading
should not exceed service limit.
Crankshaft End Play:
Standard (New): 0.10 - 0.35 mm
(0.04 - 0.01i| inl
S€rvic€ Limit 0.i15 mm (0.018 inl
. lf end play is excessive, inspect the thrust wash€rs
and thrust surface on the crankshaft. Replace pans as
necessary.
NOTE:
Thrust washer thickness is fixed and must not be
changed either by grinding or shimming.
Thrust washers are installed with grooved sides fac-
ing outward.
Crankshaft
lnspection
. Clean the crankshatt oil passages with pipe cleaners
or a suitable brush.
. Check the keyway and threads.
Alignment
Measure runout on all main journals to make sure the
crank is not bent.
The differ€nce between measurements on each jour-
nal must not be more than the service limit.
Crank3haft Total lndicatod Runout:
Bl8Bl engins:
Sisndod {Nsw): 0.03 mm {0.001 in) max.
Sorvice Limit: 0.05 mm {0.002 inl
818C1 engin€:
Standard {Nsw): 0.020 mm (0.0008 in} mar.
SGrvice Limits: 0.030 mm 10.0012 in)
OIAL INDICATORRotate tlvo completerevolutions.
Support with lathe-
7-12

Cylinder Block
Inspection (cont'dl
2.Check the top of the block for warpage.
Measure along the edges and across the center as
snown.
SURFACES TO BE MEASURED
Engine Block Warpsgc:
81881 ongine:
Standard lNewl: 0.07 mm {0.003 inl max.
Service Limil: 0.10 mm {0.00,1inl
B18Cl engine:
Standard (New): 0.05 mm 10.002 inl max.
Service Limit 0.08 mm {0.003 inl
Measure cylinder bores as shown on page 7-13.
lf the block is to be reused, hone the cylinders and
remeasure the bores.
Hone cylinder bores with honing oil and a fine (400
grit) stone in a 60 degree cross-hatch pattern.
NOTE:
. Use only a rigid hone with 400 grit or finer stone
such as Sunnen, Ammco, or equivalent.
a Do not use stones that are worn or broken.
When honing is complete, thoroughly clean the
cylinder block of all metal panicles. Wash the cylin-
der bores with hot soapy water, then dry and oil
immediately to prevent rusting.
NOTE: Never use solvent, it will only redistribute
the grit on the cylinder walls.
lf scoring or scralches are still present in cylinder
bores after honing to the service limit, rebore the
engine block.
NOTEr Some light venical scoring and scratching is
acceptable if it is not deep enough to catch your fin-
gernail and does not run the full length of the bore.
CYLINDER HONE
. After honing, clean the cylinder thoroughly with
soapy water.
. Only scored or scratched cylinder bores must be
noneo.
7-14

Piston
lnstallation
'1.
Before installing the piston, apply a coat ofengine oil to the ring grooves and cylinder bores.
lf the crankshaft is already installed:
. Remove the connecting rod caps and slip short
sections of rubber hose ove. the threaded ends
of the connecting rod bolts.
a Install the ring compressor, check that the bear'
ing is securely in place, then position the piston
in the cylinder and tap it in using the wooden
handle of a hammer.
Stop after the ring compressor pops free and
check the connecting rod-to-crank journal align-
ment before tapping piston into place.
. Install the rod caps with bearings, then torque
the nuts,
81881 ongino: 31 N.m {3.2 kgf.m, 23 lbf.ftl
818C1 cngino: 44 N'm 1,t.5 kgf.m, 33 lbf.ftl
lf the crankshaft is not installed:
o Remove the rod caps and bearings. install the
ring compressor, then position the piston in the
cylinder and tap it in using the wooden handle of
a nammer.
. Position all Distons at toD dead center.
CONNECTING RODOIL HOI-E (Br8Bl onginelThe arrow must facethe timing belt sideof the engine. Theconnecting rod oil holemust lace the intak€manifold {81881 €ngine).
NOTE: Maintain downward force on the ring com-
pressor to prevent rings from expanding before
entering the cylinder bore,
BING COMPRESSORUse the wooden handleof a hammer to push ortap the piston into thecylinder bore.
Piston Rings
Replacement
1.Using a ring expander, remove old piston rings.
Clean all ring g.ooves thoroughly.
NOTE:
. Use a squared-oJf broken ring or ring groove
cleaner with blade to fit piston grooves.
. Top ring groove is 1.0 mm (0.039 in) wide, sec-
ond groove is 1.2 mm (0.047 in) wide. and oil
ring groove is 2.8 mm (0.110 in) wide.. File down blade if necessary.
CAUTION: Do not use a wire brush to cloan thr
ring lands, or cut ring lands dsopo. with cl€aning
tool.
NOTE: lf the piston is to be separated from the con-
necting rod, do not install new rings yet.
Install new rings in the prope. sequence and posi-
tion (see page 7-18).
NOTE: Do not use old piston rings.

I
'1. Using a piston, push a new ring into the cylinderbore 15 - 20 mm (0.6 0.8 in) from the boftom.
Measure the piston ring end-gap with a feelergauge:
lf the gap is too small. check to see if you have
the proper rings for your engine.
lf the gap is too large, recheck the cylinder bore
diameter against the wear limits on page 7-13.
ll the bore is over the service limit, the cylinder
block must be rebored.
Piston Ring End-cap:
Top Ring
Standard (New): 0.20 - 0.35 mm(0.008 - 0.01'l inl'1
0.20 - 0.30 mm
10.008 - 0.012 inl''
Servica Limit: 0.60 mm (0.024 in)
Second Ring
Standard (Now): 0.40 - 0.55 mm
10.016 - 0.022 in)
Service Limit: 0.70 mm (0.028 in)
Oil Ring
Standard (New): 0.20 - 0.50 mm(0.008 - 0.020 in)'1
0.20 - 0.,15 mm
{0.008 - 0.018 inl',
Servica Limit: 0.70 mm 10.028 in)
After installing a new set of rings, measure the ring-to-gfoove clearances:
Top Ring Cl€arance:
Standard lNewl: 0.045 - 0.070 mm
10.0018 - 0.0028 in)
Service Limit: 0.13 mm {0.005 inl
Second Ring Clearance:
Standard {Newl: 0.040 - 0.065 mm(0.0015 - 0.0026 inl'1
0.0i15 - 0.070 mm(0.0018 - 0.0028 in)',
Service Limit: 0.13 mm (0.005 inl
iliiii.--r.llli.j- --.-PISTON NING
ioi
---'z llEND GAP -11--
RIKEN manufactured piston ring
TEIKOKU PISTON RING manufactured oiston rinq
{81881 engine only)
RIKEN manufactured piston ring
TEIKOKU PISTON RING manufactured Diston rino(B'1881 engine only)
7-17

Piston Rings
Alignment
1.Installthe rings as shown.
ldentify top and second rings by the chamfer on the
edge. Make sure they are in their proper grooves on
the prston.
NOTE: The manufacturing marks must be facing
upwaro.
TOP BING
OIL RINGSPACER
3. Position the ring end gaps as shown:
DO NOT position any ring gapsEcoNo R|NG GAp -.- :': :.-"' : - ' '----'-- { _- - - at prston thrust surfaces.
App.ox. 90"
OIL RING
ls" GAP
TOP BING GAPSPACER GAP
Rotate the rings
do not bind.
DO NOT position any ring gapin line with the piston pin hole.
SECOND RING
in their grooves to make sure they
MARK
OIL RING GAP
Piston Pins
Removal
1. Assemble the Piston Pin Tools as shown.
PISTO]T PIN BASE INSEN|T--r otGAF- PH6{t1,0
PISTON BASE HEAD
--l
PISTON BASE SP '{G07973 - 65r06{X'
7-18,

Installation (B18Bl engine)
2. Adjust the length A of the piston pin driver.
A:81881 engine:49.70 mm {1.957 inl
Bl8Cl €ngin€:51.70 mm {2.035 inl
PISTON PIN DRIVER HEAD07973 - PE00320
PISTON PIN DRIVER SHAFT07973 - PE00310
PILOI COLLAR07LAF - PR30100Embossed mark facing up.
NOTE: Use a hydraulic press.When pressing pin in or out,make sure that the recessedportion of the piston alignswith the lips on the collar.
Place the piston on the piston base and press the
pin out with a hydraulic press.
1. Use a hvdraulic oress for installation.
When pressing the pin in or out, be sure to posi-
tion the recessed flat on the piston against the
lugs on the base attachment.
The arrow must face thetiming belt side o{ theengine and the connectingrod oil hole must face therear side of the engine,
otl Hols
2. Adjust the length B of the piston pin driver.
B: 49.70 mm (1.957 inl
PISTON PIN DRIVER HEAD07973 - PEfl)320
PISTON PIN DR|VEN SHAFT079?3 - PE|X)310
Embossed mark
ffi*.r,"ror","l
PILOT COLLAN07LAF - PF301(x)
PISTON PIN BASE INSERT07GAF- PH603oO
PISTON BASE HEAD07HAF - PL20t02
PISTON BASE079?3 - 6570500
NOTE: lnstall the assembled piston and rod with
the oil hole facing the intake manifold.
7-19

Connecting Rods
Selection
Each rod falls into one of four tolerance ranges (from 0
to + 0.024 mm (0 to + 0.0009 inl, in 0.006 mm {0.0002 in)
increments) depending on the size ot its big end bore.
It's then stamped with a number (1,2,3, or 4) indicating
the range.
You may find any combination ol 1, 2, 3, or 4 in any
engane.
Normsl Boro Sizoi ,18.0 mm 11.89 inl
NOTE:
a Reference numbers are Jor big end bore size and do
NOT indicate the position of the rod in the engine.
. Inspect connecting rod for cracks and heat damage.
CONNECNNG ROD BOREREFERENCE NUMBERHalf oI number is stamped onbearing cap. th€ other halfonconnecting rod.
Crankshaft
lnstallation
Before installing the crankshaft. apply a coat ofengine oil to the main bearings and rod bearings.
1. Install the thrust washers in the No. 4 iournsl of the
cvlinder block.
Grooved side tacingo!tward
Insert bearing halves in the engine block and con-
necting rods.
Hold the crankshaft so rod journals for cylinders No.
2 and No.3 are straight up.
Lower the crankshaft into the block. putting the rod
journals into connecting rods No.2 and No.3.
Install the rod caps and nuts finger-tight,
CONNECNNG ROD
7 -22

Rotate the crankshaft clockwise, put journals into
connecting rods No. 1 and No. 4, and install the rod
caps and nuts finge.-tight.
NOTE: lnstall caps so the bearing recess is on the
samg side as the .ecess in the rod.
Check rod bearing clsarance with plastigage (see
page 7-9), then tighten the capnuts in 2 steps.
l3t 3t.p: 20 N.m (2.0 kgf.m, rl btfil
2nd 3tep:
81881 cnginc: 31 N.m (3.2 kgf.m, 23 lbf.ft)
818C1 .ngin!: ,14 N.m (4.5 kgt.m,33 lbf.ft)
NOTE: Reference numbers on connecting rod are
for big-end bore tolorance and do NOT indicate the
positioo of piston in the engine.
Install the main bearings/caps and cap b.idge(818C1 engine onlyl.
NOTE: Coat the bolt threads with oil.
CAP BRIDGElBlSCl .noin. onlyl
EEARIlTG
8. Check clearsnce with plastigsge (see page 7-8). then
tighten bearing cap bolts in 2 steps.
13t st.p: 29 N.m (3.0 kgf.m, 22 lbt.ftl
2nd 3tsp:
81881 .ngin.: 76 N.m (7.8 kgt.m,56 lbf,ft)
Bl8Ct engine:
No. 1, 5 cap bol$: 73 N.m (7./r kgf'm, 56 lbf,ftl
No. 2, 3, a clp bolbr 6{ N.m (6.5 kgf'm, /r9 lbf,ftl
BEARING CAP BOLTS TOROUE SEOUENCE
Bl88l cngino:
Bl8Cl ongino:
CAUTION: Whenever any crsnkehaft or connocting rod
b.aring is rlphccd. it i5 ncccrsrry aftor rclssombly to
run tho ongino ai idling 3p6ad until it re.chei normrl
opcrating tcmporature, thon continuo to run it fol
spp.oximltoly f 5 minula3.
(cont'd)
7-23