ACURA INTEGRA 1998 Service Repair Manual

Oil Pressure
Testing
lf the oil pressure warning light stays on with the enginerunning, check the engine oil level. It the oil level iscorrect:
Connect a tachometer.
Remove the oil pressure switch and install an oil pressure gauge.
Start the engine. Shut it off immediately if the gaugeregasters no oil pressure. Repair the problem beforecontinuing.
Allow the engine to reach operating temperature (fan
comes on at least twicel. The pressure should be:
Engine Oil Pressure:
At ldle: 70 kPa {O.7 kgficmr, tO psil
minimum
At 3,OOO rpm: 34O kPa (3.5 kgf/cmr, 50 psil
minimum
a lf oilpressure is within specifications, replace theengine oil pressure switch and recheck.
a lf oil pressure is NOT within specifications,rnspect the oil pump (see page g-11).
l
2.
Oil Jet
lnspection(818C1, 818C5 engines
only)
1. Remove the oil jet (see pages 8 4 or 8 5) and inspectit as follows.
a Make sure rhat a 1 .1 mm (O.04 in) diameter drillwillgo through the nozzle hole fl.2 mm (O.O5 in)diameter).
a Insert the other end of the same 1 .1 mm {0.O4in) drill into the oit intake (1.2 mm (0.05 in)diameter).
Make sure the check ball moves smoothly and hasa stroke of approximately 4.0 mm (O.16 in).a Check the oil jet operation with an air nozzle. ltshould take at least 2OO kPa 12.O kg|lcm2, 2gpsi) to unseat the check ball.
NOTE: Replace the oiljet assembly if the nozzleis damaged or bent.
2. Mounting torque is critical. Be very precise when in-stalling.
Torque: 16 N.m (1.6 kgf.m, 12 lbf.ftl
1.2 mm (0.05 inl
16 N.m {1.6 kgf'm, 12 lbf.ftl
8-9

Oil Pump
Overhaul
NOTE:
a Use new O-rings when reassembling.
a Apply oil to O-rings belore installation.
. Use liquid gasket, Pan No. 08718 - 0001 or 08718 - 0003.
a After reassembly, check that the rotors move without binding.
6 x 1.0 mm7 N.m 10.7 kg{.m, 5 lbf.fr}OUTER ROTORInspection, pages 8 11, 12
SEALING BOLT39 N.m {4.0 kgf.m,29 rbf.ftl
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O.RINGReplace
/6 x 1.0 mm11 N.m (1.1 kgt.m.8 tbf.fr)
8 x 1.25 mm24 N.m 12.4 kgl.m.17 lbt.fr)
DOWEL PIN
PUMP HOUSINGInspection, pages 8-'11, 12Apply liquid gasketto mating suface ofthe cylinder blockwhen installing.
8 x 1.25 mm24 N.m (2.4 kgf.m,17 tbt.ftl

3.
Removal/lnspection/lnstallation
Drain the engine oil.
Turn the crankshatt and align the white groove onthe crankshatt pulley with the pointer on the lowercover.
Remove the cylinder head cover and middle cover.
Remove the power steering pump belt, air condition-er belt and the alternator belt.
Remove the crankshaft pulley and remove the low-er cover.
6. Remove the timing belt,
7. Remove the drive pulley.
8. Remove the oil pan and oil screen.
9. Remove the oil pump.
OIL PUMP
OIL PAN
8-1
'10. Remove the screws from the pump housing, thenseparate the housing and cover.
1 1 . Check the inner-to outer rotor radial clearance on thepumD rotor.
Inner Rotor-to-Outei Rotor Radial ClearanceStandard (Newl: O.04-O.16 mm
lO.OO2-O.O06 int
Service Limir: 0.20 mm {0.O08 in)
12. Check the housing-to-rotor axial clearancepump rotor.
Housing-to-Rotor Axial Clearance
Standard (New): 0.02-0.07 mm(0.0O1 -O.003 in)
Service Limit: O.15 mm (0.006 inl
on tne
1

Oil Pump
Check the housing-to-outer rotor radial cleatance.
Housing-to-Outer Rotor Radial Clearance:
Standald (New): O.10 -O.19 mm
{0.O04-O.O07 in)
Service Limit: 0.2O mm (O.OO8 inl
Inspect both rotors and pump housing tor scoring or
other damage. Replace parts if necessary.
Remove the old oil seal from the oil pump.
Gently tap in the new oil seal until the special tool
bottoms on the pump.
NOTE: The oil seal alone can be replaced without
removing the oil pump.
alllnspection/lnstallation (cont'd)
14.
15.
to.
OIL PUMP
8-12
24
L17.
'18.
19.
20.
Reassemble the oil pump, applying thread lock to the
pump housing screws.
Check that the oil pump turns freely.
Apply a light coat of oil to the seal lip.
Install the two dowel pins and new O-ring on the oil
pump.
Apply liquid gasket to the cylinder block mating sur-
face ol the oil pump.
NOTE:
. Use liquid gasket, Part No, 08718 - 0001 or 08718
- 0003.
a Check that the mating surlaces are clean and dry
betore applying liquid gasket.
a Apply liquid gasket evenly, in a narrow bead cen
tered on the mating surface.
a To prevent leakage of oil, apply liquid gasket to
the inner threads of the bolt holes.
a Do not installthe parts il 5 minutes or more have
elapsed since applying liquid gasket. Instead,
reapply liquid gasket atter removing the old
resrdue.
a After assembly, wait at least 30 minutes before
filling the engine with oil.
Install the oil pump on the cylinder block.
a Apply grease to the lip of the oil pump seal.
Then, install the oil pump onto the crankshaft.
When the pump is in place, clean any excess
grease oll the cranksfft-hd-chqck that the oil
seal lip is not disl6rted. ".\
lnstall the oal screen.
Installthe oil pan (see page 7 28).
22.
23.

Intake Manifold/Exhaust System
Intake Manifold
Replacement ............................... g-2
Exhaust Manifold
Replacement ....................................... g-5
Exhaust Pipe and Muffler
Replacement ....................................... g-7
tr.-lrl
Fi

lntake Manifold
Replacement
PURGE CONTROLSOLENOIO VALVE
8 x 1.25 mm22 N.m 12.2 kgl'm'
16
IDLE AIR
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NOTE: Use new O-rings and gaskets when reassembling
CAUTION: Check tor tolds or scratches on the sudace of the gasket.
81881 engine:
Replace with a new gasket if damaged.
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EVAPORATIVE EMISSION(EVAP}
11 N.m l'1.1 kg{.m,8.0 rbf.fr)
INTAKE AIRTEMPERATURE(IAT} SENSOB
5xO.8mm6 N.m 10.6 kgf'm,4 tbI.tt)
8 x 1.25 mm23 N.m (2.3 kgt'm,17 tbf.fl)
INTAKE MANIFOLOReplace if cracked orif mating surfaces areoamageo.
lrAcl vALvEBe careful not
to damage,
8 x 1.25 mm24 N.m 12.4 kqf .m,
17 lbI.Ir)THROTTLEBODY8 x 1.25 mm22 N.rn 12.2 kgl.m,16 tbf.frl
24 N.m {2.4 kgt.m,17 tbf.{r)
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BRACKET

.'.,.'.attj
NOTEr Use new O-rings and gaskets when reassembling.CAUTION: Check for folds or scratches on the surlace ot the gasket. Replace with a new gasket if damaged.
818C1 engine:
6 x 1.0 mm11 N.m {1.1 kgt.m8.O tbt.trl
EVAP PURGE CONTROLSOLENOID VALVEINTAKE MANIFOLDReplace if cracked orit mating surfaces are
rAc v4f,vE8e caie{ul notto
IAT SENSOR
8 x 1.25 mm24 N.m 12.4 kgt.m,17 tbf'fr)
22 N.m 12.2 k'l.m,16 lbf.ftl
O-BINGReplace.5x0.8mm6 N.m (0.6 kgI'm,4 tbf.trl
INTAKE AIRBYPASS VALBODY
INTAKE MANIFOLOCHAMBER
8 x 1.25 mm23 N.m 12.3 kgt.m,17 tbf.ft)
8 x 1.25 mm22 N.m 12.2 kgt.m,16 tbt'tr)I x 1.25 mm24 N.m (2.4 kgl.m,17 tbf.ft)8 x 1.25 mm24 N.m (2.4 kgt.m,17 tbf.frl
HEATER BYPASSPIPE
8 x 1.25 mm22 N.m 12.2 kgt.m,16 lbt.fr)THROTTLEEODY
(cont'd)
9-3

Intake Manifold
Replacement (con(d)
NOTE: Use new O-rings and gaskets when reassembling.
CAUTION: Check for tolds or scratches on the surface oI the gasket. Replace with a new gasket if damaged
818C5 engine:
5x0,8mm6 N.m 10.6 kgl m,
INTAKE MANIFOLDRoplace il cracked oril mating surfaces aredamaged.
I x 1.25 mm212 N.n 12.2 tsl'm,16 tbf.ftl
\.
IDI.f AIR CONTROL(IACI VALVEBe careful notto dsmage.8 x 1.25 mmZ' N.m 12.3 kgt'm,17 tbl.ft)THROTTLEBODY
8 x 1.25 mm22 N.m 12.2 kgtm,16 tbf ft)
8 x'1.25 mm24 N.m l2.il kgf.m,17 rbt.ft)
9-4

Exhaust Manifold
Replacement
NOTE: Use new gaskets and sell-locking nuts when reassembling.
81881, 818C1 engine:
EXHAUST MANIFOI-D
8 x 1.25 mm24 N.m (2.4 kgf.m, 17 tbt.trl
,t
8 x '1.25 mm24 N.m 12.4 kgt.m,17 lbt.ftl
SELF-LOCKING NUT8 x 1.25 mm31 N.m 13.2 kgf.m.23 tbl,fr)Replace.
10 x 1.25 mmrt4 N.m (4.5 kgl.m,33 lbf.ttl
N

I
Exhaust Manifold
Replacement (cont'd)
NOTE: Use new gaskets and selt-locking nuts when reassembling-
818C5 ongine:
8 x 1.25 mm2a N.m 12.,r kgf.m, 17 lbf.ftl
GASKETReplace.
8 x 1.25 mm3l N.m 13.2 kgf.m, 23 lbtftlReplace.
10 x 1.25 mma,l N.m (4.5 kg{.m, 33 lbf.ftl
EXHAUST MANIFOLD
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9-6