Rings HONDA INTEGRA 1994 4.G Owner's Manual

Crankshaft
Removal
NOTE: End play for th€ connecting rods and crankshaft
should be inspected betore removing the crankshaft.
1. Remove the oil Dan, oil screen and the oil pump.
Remove the baffle plate.
Turn the crankshaft so No.2 and 3 crankpins ar€ at
the bottom.
Remove the right side cover.
OIL PAN
7-10
o@@
5, Remove the bearing cap bolts,
CAUTION: To prevent warPag€, unscrew ths bohr
in 3equoncg 1/3 turn at a tim€; rspeat ihe sgquanco
until all bolts are loos€ned.
Remove the cap bridge {818C1 engine only} and
main caps/bearings. Keep all caps/bearings in order.

7.
8.
11.
9.
10.
Remove the rod caps/bearings. Keep all caps/bear-
ings in order.
Lift the crankshaft out of the engine, being careful
not to damage journals.
Remove the upper bearing halves from connecting
rods and set them aside with their resDective caDs.
Reinstall main caps and bearings on the engine in
oroDer order.
lf you can feel a ridge of metal or hard carbon
around the top of each cylinder, remove it with a
ndge reamer.
Follow the reamer manufacturer's instructions.
CAUTION: It the ridge is not removed, it may dam-
age the pistons as they are pushed oul.
CRANKSHAFT
RIDGE REAMER
12. Use the wooden handle of a hammer to drive the
prslons ouI.
CAUTION:
a Take care not to damage the contact surfaco ot
the metal gasket.
. When removing the piston/connecting rod, taks
caro not to hit the oil iot {818C1 sngins onlyl.
. It tho oil iet nozzlo is damag6d or bont, replaco
the oil ist assembly (818C1 engine only, page 8-
8).
Reinstall the rod bearings and caps after removing
each piston/connecting rod assembly.
Mark each piston/connecting rod assembly with its
cylinder number to avoid mixup on reassembly.
NOTE: The existing number on the connecting rod
does not indicate its position in the engine, it indi-
cates the rod bore size.
13.
14.
7-11

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,

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

lllustrated Index
DRATT PIUG \44 .m (4.5 tgf.m, 33 lbf'ftl \Do not ovgr tightgn. \-@5
OIL PAI{
6 r l.O mtn121{.m 11.2 kol.m,I lbl.ttl
CAUTIOIiI: Do not ovortighten the drain plug.
81881 sngine:
WASHERReplace.
O|L BNEATHERTAIIK
eq
nU2o@
\
u
I
#-'
GASKETR6placs,
NOTE;
o Use new O-rings when reassembling.
a Apply oil to O-rings betore installation,
. Use liquid gasket, Part No. O8718-OOO1.
a Clean the oil pan gasket mating surtaces before in-
stalling it.
6 x'l.o mm12 N.m {1.2 kgt.m, 9 lbt.tt)
6 x 1.0 mm'11 N.m 11 .1 kgt'm,8lbt.ftl
6 x 1.O mmll N.m {1.1 kgf'm,
OIL SCREEN
A
,F
HEAD OILCONTROL ORIFICECIean.
I tbt.ftl
OIL FILRepl.cemont, p6gs 8-6
ENGINE OIL PRESSUREswlTcH18 .m 11.8 kgl.m, 13lbl.ftl'l/8 in. BSP lgritish StandardPioo Taporl 28 Threads/inch.Use propgr laquid 56alant.
GASKETReplace.
BAFFLE PTATE
I x 1.25 mm24 N.m 12.4 kgf..n,17 rbr.ftl
6 x 1.O mm11 N-m (1.1 kgt.m,8lbf.ft)OIL PUMPOverhaul, page 8-9lnspection page, 8-1OApply liquid gasket toblock mating surlace.(cont'dl
8-3

lllustrated Index
(cont'dl
CAUTION: Do not overtighten rhe dlain ptug.
818C1 engine:
NOTE:
a Use new O-rings when reassembling.
a Apply oil to O rings before installation.. Use liquid gasket. Part No. 08718-OOO1.
a Clean the oil pan gasket mating surfaces before in-
stalling it.
OIL PAN
Replace.
6 x 1.0 mm12 N.m 11.2 kgl.m, 9 lbf.ftl
6 x 1.0 mm11 N.m 11.1 kgt.m,S lbf.fil
OIL JET BOLT16 N.m {'1.6 kgf.m, '13 lbf.ft}
OIL JETBe careful not to damage.Inspection, page 8-8
O-RINGReplace.
EAFFLE PLATE
6xl.0mm11 N.m (1.1 kgt.m, I lbt.ft)
OIL SCREEN
GASKETReplace.
6 r '1.0 mml1 N.m (1.18 rb-trlK9-m,
O-RINGReplace.
HEAD OIL CONTROLORIFICEClean.
8 x 1.25 mm24 N.m (2.4 kg-m, 17 lb-ft)ENGINE OIL PR€SSUREswtTcH1A N.m {1.8 kgf.m, 13 lbf.ft)1/8 in. BSP {British StandardPipe Taperl 28 threads/inch.Use proper liquid gasket.
OIL PUMPOverhaul, page 8-9Removal/lnspection/lnstallation, page 8-10Apply liquid gasket to matingsurface ot the engine block.
Il
,--)e6V
ENGINE OIL COOLER
ENGINE OIL FILTERReplacement, page 8-6
OIL COOLERCE TER BOLT74 N.m (7,5 kgf.m, 54 lbf.ft)
DRAIN PLUG44 N.m (4.5 kgf.m, 33 lbt.ftlDo not overtighten.
8-4

Oil Pump
Overhaul
NOTE:
a Use new O-rings when reassembling.
a Apply oil to O-rings before installation.
. Use liquid gasket, Part No. 08718-OO01.
a After reassembly, check that the rotors move without binding.
6 x 1.0 mm6 N.m 10.6 kgl.m, 4 lbt'ttl
OUTER ROTORInspection, pages I 10, 11O.RINGReplace.
0
6 x 1.O mm11 N.m (1.1 kgf.m,8 tbf.frl
DOWEL PIN
PUMP COVERInspection, page 8-10
INNER ROTORInspect|on,page 8-1 1
8 x 1.25 mm24 N.m (2.4 kgf.m,t7 tbt'ft)
\SPRING
OIL SEALInstallation, Page 8-1 1Replace.
RELIEF VALVEValve must slide treelyin housing bore.Replace when scored.PUMP HOUSINGlnspection, pages 8-10, 11Apply liquid gasketto mating suface oIthe cylinder blockwhen installing.*\
8 x 1.25 mm24 N.m (2.4 kgl.m,17 lbl.Irl
SEALING BOLT39 N'm 14.0 kgf.m,29 tbt.ttt