1998 HONDA CIVIC d16y5

22. Installthe oil pump on the cylinder block.
Apply grease to the lip ot the oil pump seal.
Then. install the oil pump onto the crankshaft.
When the pump is in place, clean any excess grease
off the crankshaft and check that the oil seal lip is
not distorted.
81642 engine:
8 x 1.25 mm6x1.Omm
24 N.m (2.i4 kg[.m,17 tbl.trl
11 N.m {1.1 kg{.m,8 rbt ft)O.RI GReplace.
DOWEL PINS
GASKETReplace.
OIL SCREEN
6x1.0mmrl N.m {1.1 kgf'm,I tbf.ftl
D16Y5, D16Y7. D16Y8 enginos:
OOWEL PIN
6x1.0mm11N'm (1.1 kgf m'
O.RINGReplace.
DOW€L PIN
GASKETReplace.
6x1.0mm
6 x 1.0 mm '11 N'm {1 1 kgf'm,
11 N.m (1.1 kgf.m, I lbf ftl
8 lbf.ft)
!o
8-15
lnstall the oil screen.
Install the oil pan (see pages 7-26 or 7-27).
NOTE: Clean the oil pan gasket mating surfaces.

D16Y5 engine:
6x1.0mm12 N'm (1.2 kgl.m,8.? lbf'ft)
EGR CHAMBER
INIAKE MANIFOLDReplace if cracked orif mating surfaces are8 x 1.25 mm21 N m (2.1 kgf.m,15 tbtft)damageo,
INTAKE AIB CONTROL(IAC) VALVE (M/TI
8 x'1,25 mm22 N.m (2.2 kst m, 16lblftl
8 r 1.25 mm2a N.m (2.4 kgt m,17 rbt.ft)
EXHAUST GASRECIRCULATION(EGRIVALVE
8 x 1,25 mm22 N.n 12.2 kol'm,16 tbftr)
INTAKE MANIFOLDBRACKET
8 x 1.25 mm23 N.m 12.3 kgf'm,17 tbt fr)
(cont'd)I
9-3

Exhaust Manifold
Replacement
NOTE: Use new gaskets and self-locking nuts when reassembling.
CAUTION:
. Check for folds or scratch€s on the surface of the gasket.
. Replace with a new gasket it damaged.
D16Y5. D16Y7 engines:
I x 1.25 mm24 N.m {2.4 kgt.m, 17 tbtft}
MANIFOLDBRACKET
PRIMARY HEATEDOXYGEN SENSORIPRIMAFY HO2SI44 N.m {4.5 kgf m, 33 lbtft)Replacement, page 9-12
GASKETReplace.
I x 1.25 mm31 N.m (3.2 kgf.m,23 tbf.ft)Beplace.
WAY CATALYTICCONVERTER {TWCIlnspection, page 9'12
6x1.0mm11 N.m {1.1 kgt m,8 lbf.ft)
SECONDARY HEATEDOXYGEN SENSOR(SECONDARY HO2S}44 N.m 14.5 kgf.m,33 lbf.ft)Replacement, page 9-13
9-6

Exhaust Pipe and Muffler
\
Replacement
NOTE: Use new gaskets and self-locking nuts when reassembling
D16Y5, D16Y7 engines:
HEAT SHIELO
6x1.0mm9.8 N.m tl.0 kgf'm,7.2lbf'ft)
EXHAUST PIPE B
EXHAUST PIPE TIP
/
O
6x1.0mm9.8 N.m 11.0 kgt m, 7.2 lbf'ftl
oP----------------8 x 1.25 mm22 N.m 12.2 kg .m,
16 tbf.f Replace.Tighlen the bolts insteps, alternatingside to-side.
8 x 1.25 mm22 N.m 12.2 kgl'm, 16lbl'ttl
Replace.Tighten the bolts in steps,
alternating side-to-side
GASKETReplace.
SELF-LOCKING NUT
8 x 1.25 mm16 N.m 11.6 kgt m, 12 lbt'ftl
Replace.
(cont'd)
9-9
MUFFLER
neOlace. ----------"+@
SELF.LOCKING NUT10 x 1.25 mm33 N.m (3.4 ksd.m,25 lbf.frlReplace.

TWCHO2S
Inspection
l. Using a flashlight, make a visual check for plugging,
melting and cracking of the catalyst.
D16Y5, D16Y7 engines:
816A2, D16Y8 engines:
-\6{-)\
lT
a
A
FLASHLIGI{T
9-12
Replacement
Primary HO2S:
1. Remove the primary HO2S.
D16Y5, D15Y7 engines:
a. Disconnect the primary HO2S connector, thenremove the cover.
8 x'1.25 mm24 N.m {2.4 kgl.m,
PRIMARY H02SCONNECTOR
b. Remove the primary HO2S.
| \l ,l(
I bK/l
l llw.
/
(
PBIMARY HO2S44 N m (4.5 kgf.m, 33 tbI.ft)

lllustrated Index
@@ system is under high pressure when theengine is hot. To avoid dangsr of rsleasing scaldingengine coolant, removo the cap only when the engine iscoot.
Total Cooling System Capacity flncluding heater andfoservoir (0.4 f (0.42 US qt, 0.35 tmp qt)ll:
*2: 81642 engine*3: D16Y7 engine*4: D16Y8 engine
CAUTION: lf any engine coolant spills on painted por-tions of the body, rinse it off immediately.
NOTE:
. Check all cooling system hoses for damage, leaks ordeterioration and replace if necessary.. Check all hose clamps and retighten if necessary.. Use new O-rings when reassembling.
RADIATOR CAPPressure test, page '10 86x1.0mm9.8 N.m {1.0 kgtm,7.2 tbt.ltl
UPPERRADIATORHOSE
UPPER BRACKETAND CUSHION
COOLANT
RAOIATOREngine coolant refilling and bleeding,page 10 7Leak test, page 10-9Inspect soldered joints andseams for leaks,Blow out dirt Irom betweencore fins with compressed air.lf insects, etc,, are cloggingradiator, wash them off withrow pressure water.
RESERVOIR
5x0.8mmA: ,1.4 N.m {0.45 kgf.m, 3.3 tbtftlg: 5.4 N.m (0.55 kgtm.4.0 tbf.ft)
6x1.0mm7.2 N.m (0.73 kgt.m,5.3 tbtftl
LOWERCUSHION
RADIATOR FANBADIATORFAN
DRAINPLUG
O-RINGReplace.
LOWEBRADIATORHOSE
FAN MOTOR SHROUD
Ar TOYO RADIATOR manufactured radiatorB: NIPPONDENSO manufacfared raoraror
10-2
Refer to section 14when installing.
Mt-|-4.2 f (4.4 US qt,3.7 tmp qt)*j
5.0 / (5.3 U$ q1, 4.4 16p q11*z
4.1 f (4.3 US qt, 3.6 lmp q0*3
4.31 (4.5 US qt, 3.8 tmp qt)*a
CVT4.3 f (4.5 US qt,3.8 Imp qt)
*1i D16Y5, D16Y7, D16Y8 engines
iil

lllustrated Index
(cont'd)
Engine Hose Connections:
D16Y5, D16Y8 engines:
Replace.
IAC VALVE(M/TI
IAC VALVE{A/T)
WATER BYPASSHOSE
THERMOSTATHOUSING
O.RINGReplace.
\
\
\
\h
CONNECTINGPIPE
HEATERVALVE
HEATERHOS€S
10-4

tl
Engine Coolant Refilling and Bleeding
CAUTION: when pouring engine coolant, be sure to
shut the relay box lid and not to lst coolant spill on the
eleqtrical parts or the paint. lf any coolant spills, rinse it
off immediately.
1. Slide the heater temperature control lever to maxl-
mum heat. Make sure the engine and radiator are
cool to the touch.
Remove the radiator caP.
Loosen the drain plug, and drain the coolant'
Remove the drain bolt from the cylinder block'
D16Y5. D16Y7, Dl6Yg sngines:
DRAIN PLUG
0d
I ro
78 N.m {8.0 kgl m.58lbt'ft)
6.
1.
B1642 engin€:
WASHERReplace.
DRAIN BOLT78 N m (8 0 kgf m' 58lbfft)
Apply liquid gasket to the drain bolt threads, then
reinstall the bolt with a new washer and tighten 't
securely.
Tighten the radiator drain plug securely
Remove, drain and reinstall the reservoir' Fill the
tank halfway to the MAX mark with water, then up
to the MAX mark with antitreeze.
(cont'd)
10-7
MAX MARK