1997 HONDA CR-V Workshop Manual

Oil Pressure SwitchOil Pressure
Testing
Remove the YEL/RED wire from the engine oil pres-
sure swrtcn.
Check for continuity between the positive terminal
and the engine {ground). There should be continuity
with the engine stopped. There should be no conti-
nuity with the engine running.
L
PRESSURE SWTCH18 N.m {1.8 kgf.m,13 tbr.ftlApply liquid sealantto the threads,
lf the switch fails
level. lf the engine
orl pressure.
to operate, check the engine oil
oil level is OK, check the engine
Testing
lf the oil pressure warning light stays on with the engine
running, check the engine oil level. lf the oil level is cor-
rect:
L Connect a tachometer.
2. Remove the engine oil
an oil pressure gauge.
ADAPTER(1/8" - 28, BSTP)(Commercially available)
pressure switch. and install
OIL PRESSURE GAUGE
{Commercially available)
4.
ENGINE OIL PRESSURESWTTCH MOUNNNGHOt-E
Start the engine. Shut it off immedjately if the gauge
registers no oil pressure. Repair the problem before
continuing.
Allow the engine to reach operating temperature (fan
comes on at least twice). The pressure should be:
Engino Oil Temperature: 176'F (80'C)
Engine Oil Pressure:
At ldle:70 kPa (0.7 kgt/cm', 10 psil
minimum
Ai 3,000 rpm: 3/r0 kPa {3.5 kgt/cm', 50 psi)
minimum
lf oil pressure in not within specifications, inspect the
oil pump (see page 8-9).
8-7
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Oil Pump
Overhaul
6xl.0mm9.8 N m (1.0 kg,t m, 7.2 lbf ftl
6x1.0mm5 N.m {0.5 kgt m. 4lbtft}OUTER ROTORInspection, pages 8-9, 1O
PUMP COVER
lnspection, pages 8-9, 10Apply liquid gasketto the mating surface ofthe cylinder blockwhen anstalling.
REI-IEF VALVEValve must slide freelyin the housing bore.Replace the valve if it is scored.
8 x 1.25 mm2{ N.m (2.4 kgf m,17 tbf.fi)
DOWEL PIN
8-8
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1.
2.
3.
RemovaUlnspection/lnstallation
Drain the engine oil.
Turn the crankshaft, and align the white groove on
the crankshaft pulley with the pointer on the lower
cover.
Remove the cylinder head cover and middle cover.
Remove the power steering pump belt, air condi-
tioner belt and the alternator belt.
Remove the crankshaft pulley, and remove the
lower cover.
6. Remove the timing belt.
7. Remove the drive pulley.
8. Remove the oil pan and oil screen.
9. Remove the oil pump.
orLPUMP
OLRINGReplace.
5.
OIL SCREEN
10.
ll.
Remove the screws from the pump housing, then
separate the housing and cover.
Check the inner-to-outer rotor radial clearance on
the pump rotor. lf the inner-to-outer rotor clearance
exceeds the service limit. replace the inner and
outer rotors.
lnner Rotor-to Outar Rotor Radial Clearance
Standard {Newl: 0.04 - 0.16 mm
{0.002 - 0.006 inl
Service Limit: 0.20 mm (0.008 in)
Check the housing-to-rotor axial clearance on the
pump rotor. lf the housing-to-rotor axial clearance
exceeds the service limit. replace the set of inner
and outer rotors and/or the pump housing.
Housing-to-Rotor Axial Clearance
Standard {New): 0.02 - 0.07 mm
{0.001 - 0.003 in)
So|'ice Limit: 0.15 mm (0.006 inl
(cont'd)
8-9
HOUSING
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Oil Pump
13.
Removal/lnspection/lnstallation (cont'd)
Check the housing-to-outer rotor radial clearance. lf
the housing-to-outer rotor radial clearance exceeds
the service limit, reDlace the set of inner and outer
rotors and/or the pump housing,
Housing-to-Outer Rotor Radial Clearance
Standard lNewl: 0.10 - 0.19 mm
{0.004 - 0.007 in}
Service Limit: 0.20 mm {0.008 inl
Inspect both rotors and the pump housing for scor-
ing or other damage. Replace pans if necessary.
Remove the old oil seal from the oil pump.
Gently tap in the new crankshaft oil seal until the
special tool bottoms on the pump.
14.
15.
16.
8-10
17.Reassemble the oil pump, applying liquid thread
lock to the pump housing screws.
Check that the oil pump turns freely.
Apply a light coat ot oil to the seal lip.
Clean and dry the oil pump mating surfaces.
Install the two dowel pins and a new O-ring on the
cylinder block.
Apply liquid gasket, part No. 08718-0001 or 08718-
0003, to the cylinder block mating surface of the oil
pump. Apply the liquid gasket evenly, in a narrow
bead centered on the mating surface. Do not apply
liquid gasket to the O-ring grooves.
Apply liquid gasket to the inner threads of the bolt
noles.
18.
19.
20.
21.
Apply liquidgasket along thebroken line.
PUMP HOUSING
NOTE:
. Do not install the pans if five minutes or more have
elapsed since applying liquid gasket. Instead, reapply
liquid gasket after removing old residue.
. After assembly, wait at least 30 minutes betore filling
the engine with oil.
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24.Apply grease to the lip of the oil pump seal.
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 dis-
torted.
lnstall the oil screen.
Install the oil pan {see page 7-22).2't .
8 x 1.25 mm24 N.m 12.4 kgf.m,'17 tbf.ft)
O-RINGApply engine oilReplace.
6x1.0mm9.8 N.m {1.0 kgf.m,1 .2lbfitl
DOWELPIN
6x1.0mm9.8 N.m (1.0 kgf.m.7.2 tbtftl
OIL PUMP
6x1.0mm9.8Nm(1.0kgf.m,7.2 tbt ft)
OIL SCBEEN
8-11
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Intake Manifold/Exhaust System
Intake Manifold
Rep1acement ....................................... 9-2
Exhaust Manifold
Replacement ....................................... 9-4
Exhaust Pipe and Muffler
Replacement ....................................... 9-6
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Intake Manifold
Replacement
NOTE:
. Use new O-rings and gaskets when reassembling.
. Check for folds or scratches on the surface of the gasket.
. Replace with a new gasket if damaged.
'97 - 98 models:
INTAK€ MANIFOLDReplace if cracked orif mating surfaces areoamageo,
INTAKE AIRTEMPERATURE
{IATI SENSOR22 N.n 12.2 kgl.m,16 rbf.ftl
8 x 1.25 mm22 N.m 12.2 kgtm.'t6 tbf ft)
8 x 1.25 mm22 N.m |.2.2 kgl.rn,'16 tbt ftl
I x 1.25 mm24 N m 12.4 kgf m.17 tbf.ft)
INTAKBRAC}
INTAKE MANIFOLOBRACKET B ('98 modell8 x 1.25 mm23 N m (2.3 kgt m,17 tbf.ftlI x 1.25 mm24 N.m 12.4 kgf.m,17 tbf.ft)
8 x 1.25 mm24 N.m (2.4 kgf.m,17 tbf.ft)
9-2
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'99 - O0 modol3:
6x1.0mm9.8 N.m 11.0 kg{.m,7.2 tbtltl
NESONATOR
6x1.0mm9.8 N.m {1.0 kgf.m,7.2 rbr.ftt
O-RINGReplace.Apply oil to O-RINGbetore installing.
RESONATORCHAMBERBRACKET
GASKETReplace.
IAT SENSOR2:2N.m l2.2kgl.n,16 tbtftl
O.RINGReplace.
l
O.RINGReplace.
8 x 1.25 mm24 N.m 12.4 kgt m,17 tbt frl
INTAKE MANIFOLDReplace it cracked orif mating surfaces areoamageo.
8 x 1.25 mm22 N.m 12.2 kgl.m,16 rbf.ftt
IAC VALVE
8 x 1.25 mm23 N.m (2.3 kgf.m,17 tbf.ft,
INTAKE MANIFOLD
22 N.m 12,2 kgl.m,16 rbfftl
("\"- K\*}Gt
W\qu u
N,1\J 'n\
.a,,-\\J "
G)s
BRACKET
9-3
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