1997 HONDA CR-V Engine ole

Gylinder Head
Removal
Engine removal is not required for this procedure.
l!@ Make sure iacks and safety stands are
placed properly, and hoist blackels ale attachgd to the
correct position on the engine.
NOTE:
o Use fender covers to avoid damaging painted sur-
faces.
o To avoid damage, unplug the wiring connectors care-
fully while holding the connector portion.
. To avoid damaging the cylinder head, wait until the
engine coolant temperature drops below 100"F (38'C)
before loosening the retaining bolts.
. Mark all wiring and hoses to avoid misconnection.
Also, be sure that they do not contact other wiring or
hoses, or interfere with other parts.
2.
4.
5.
1.Disconnect the negative terminal from the battery.
Drain the engine coolant (see page 10-5). Remove
the radiator cap to speed draining.
Remove the intake air duct and air cleaner housing(see page 5-2).
Remove the mounting bolt and lock bolt, then
remove the power steering (P/S) pump belt and
pump (see page 5-4).
Loosen the idler pulley bracket bolt and adjusting
bolt, then remove the air conditioning (A,/C) com,
pressor belt.
ADJUSTINGBOLT
ADJUSTING BOLTLOCKNUT8 x 1.25 mm24 N m {2.4 ksf.m, 17 lbttt}
IOLER PULLEY BBACKET BOLT10 x 1.25 mm44 N.m {4.5 kgtm, 33 lbf ft)
tt aAo-Io
6. Loosen the locknut and mounting nut, then remove
the alternator belt.
LOCKNUT8 x 1.25 mm24 N.m (2.4 kgf.m, 17 lbt.ftl
10 x 1.25 mm44 N.m (4.5 kgt.m. 33 lbf.ft)
7. Remove the P/S OUmo bracket.
l0 x 1.25 mm44 N.m (4.5 kgf.m,33 rbf.ft)
BELT
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lllustrated Index (cont'd)
NOTE: New rod bearings
(see pages 7-91.
must be selected by matching connecting rod assembly and crankshaft identification markings
PISTON INSTALLANON DIRECTION:
Lubricate all internal parts with engine oil
during reassembly.EXHAUST
INTAKE
PISTON RINGSReplacement. page 7-18Measurdment, page 7-17Alignm€nt, page 7-18
PISTONInspection, page 7-12
l1\AAtr\
\9q9Q9e/
PISTON PINRemoval, page 7-14
Installation, page 7-15Inspection. page 7-16
ENGINC BLOCKCylinder bore inspection. pago 7-13
Warpage inspoction, Page 7-'13
CONNECTING ROD BEARING CAPlnstallation, page 7-20NOTE: Install the caps so thebearing recess is on thesame side as the recessin the rod.
CONNECTING ROD CAP8 x 0.75 mm31 N.m {3.2 kgl.m.23 tbf.ftl
CONNECTING
COiINECI'ING RODBEARINGSClearance, page 7-8
Solection. page 7-9
NUT
End play, page 7-6Selection, page 7-14
Inspect the top ot each cylinder borefor carbon build up or a ridgebelore removing the piston.
Remove the ridge if necessary, page 7-10Apply engine oil to the bolt threads.NOTE: After torquing each bearingcap, rotate the crankshaft to check forbinding.
7-4
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Cylinder Block
Inspection
Measure wear and taper in directions X and Y at
three levels in each cylinder. lf the measurements in
any cylinder are beyond the Service Limjt, replace
the block.
Cvlinder Bole Size:
Standard {Newl:84.00 - 84.02 mm
{3.307 - 3.308 inl
Service Limit: 84,07 mm (3.310 inl
Bore TaDer:
Limit: {Difterence between first and third measure-
ment) 0.05 mm {0.002 in)
2. Check the top of the block for warpage.
Measure along the edges and across the center as
sh own.
SURFACES TO BE MEASURED
Engine Block Warpage:
Standard (New):0.07 mm (0.003 in) max.
Service Limit: 0.10 mm {0.004 inl
PRECISION STRAIGHT EDGE
7-13
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Piston Pins
lnstallation
The arrow must face thetiming belt side ot theengine and the connectingrod oil hole must face therear of the engine.
CONNECTING ROOotL Hor.E
1. Adjust the length B of the piston pin driver and shaft.
B: 49.70 mm (1.957 in)
PISTON PIN DRIVER SHAFT0t973 - P€qxtlo
Place the piston on the
pin in with a hydraulic
recessed portion of the
on the piston base head.
ffi*r,"ron'nl
PILOT COLLAROTLAF - PF3O1(x'
PISTON PIN BASE INSERT07GAF - PH6o3ttO
PISTON BASE HEADOTHAF - PL2O102
PISTON BASE07973 - 6670500
piston base and press the
press. Make sure that the
piston aligns with the lugs
7-15
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PistonsCrankshaft
Installation
1. Apply a coat of engine oil to the ring grooves andcylinder bores.
It the crankshaft is already installed.
2. Set the crankshatt to BDC for each cylinder.3. Remove the connecting rod caps, and slip short sections of rubber hose over the threaded ends of theconnecting rod bolts.
4. lnstall the ring compressor, and check that the bear-ang is securely in place.
5. Position the piston in the cylinder, and tap it in usingthe wooden handle of a hammer. Maintain down-ward force on the ring compressor to prevent ringstrom expanding before entering the cylinder bore.6. Stop after the ring compressor pops free, and checkthe connecting rod-to-crank journal alignmentbefore pushing piston into place.
7. Install the rod caps with bearings, and torque theNUIS IO:
31 N.m (3.2 kgf.m,23 tbf.ft)
Apply engine oil to the bolt threads.
lf the crankshaft is not installed:
2. Remove the rod caps and bearings, and install theflng compressor.
3. Position the piston in the cylinder, and tap it inusing the wooden handle of a hammer. Maintaindownward force on the ring compressor to prevent
rings from expanding before entering the cylinderoore,
4. Position all the pistons at top dead center.
The arrow must facethe timing belt sideof the engine.
CONNECTING ROOOIL HOLE
RUBBER HOSES
7 -20
\-\
3.
4.
1.
6.
Installation
Apply a coat of engine oil to the main bearings androd bearings.
Insert the bearing halves in the cylinder block andconnect|ng rods.
Hold the crankshaft so the rod journals for cylindersNo.2 and No. 3 are straight down.
Lower the crankshaft into the block, seating the rodjournals into connecting rods No.2 and No.3.Install the rod caps and nuts finger tight.
outward.
Rotate the crankshaft clockwise, and seat the jour
nals into connecting rods No. 1 and No. 4, Install
the rod caps and nuts finger-tight. Install the capsso the bearing recess is on the same side as therecess an the rod.
Check the rod bearing clearance with plastigage(see page 7 8). then lorque the capnuts.
Torque:
3l N.m 13.2 kgf.m, 23 lbt.ftl
Apply engine oil to the bolt thleads.
5.
7. Install the thrust washers on the No. 4 journal.
Line up the mark wheninstalling connecting rodcap.
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Coat the thrust washer surtaces and bolt threads
with oil.
Installthe main bearing caps.
Check clearance with plastigage (see page 7-7), then
tighten the bearing cap bolts in 2 steps.
First slsp: 25 N.m {2.5 kgf'm, 18 lbf'ft}
Sscond step: 76 N'm (7.8 kgf'm. 56 lbf'ft)
MAIN BEARING CAP BOLTS TIGHTENING SEOUENCE
NOTE: Whenever any crankshaft or connecting rod
bearing is replaced, it is necessary after reassembly
to run the engine at idling speed until it reaches
normal operating temperature, then continue to run
it for approximatelY 15 minutes.
10.Clean and dry the right side cover mating surfaces.
Apply liquid gasket, part No. 08718 - 0001 or 08718
- 0003, evenly to the block mating surface of the
right side cover and to the inner threads of the bolt
holes. Install it on the cylind€r block
11,
6x1.0mm9.E N.m {1.0 kgt m,7.2 tbf.ft)
NOTE:
. Do not install the parts if five minutes or more
have elapsed since applying the liquid gasket.
Instead, reapply liquid gasket after removing the
old residue.
. After assembly, wait at least 30 minutes before
filling the engine with oil.
(cont'dl
7-21
RIGHT SIDE
OOWEL PINS
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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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lllustrated Index
CAUTION: The system is under high pressure when the
engine is hot. To avoid danger ol releasing scalding engine
coolant, remove the cap only when the engine is cool.
Total Cooling System Capacity fincluding 0.6 I (0.63 US
qt, 0.53 lmp qt) for heater and reservoirl:
A/T: 5.9 { {6.2 US qt, 5.2 lmp qt)
M/T: 6.0 f (6.3 US $, 5.3 lmp qt)
deterioration and replace if necessar,.
Check all hose clamps and retighten if necessary.
lf any engine coolant spills on the
body, rinse it off immediately.
Check all cooling system hoses
painted portions of the
for damage, leaks or
6x1.0mm9.8 N.m 11.0 kgf.m.1.2 tbl.ftl
RADIATOREngine coolant refilling and bleeding,page 10-5Leak test, page 10 7Inspect soldered joints andseams for leaks.Blow out din from betweencore fins with compressed air.lf insects, etc., are cloggingradiator, wash them off withlow pressure water.RADIATOR CAPPressure test, page 10-7
ATF COOLERHOSEReler to section 14when installing.
LOWERcusHroN
6x1.0mm7 N.m (0.7 kgf.m, 5 lbf ftl
FAN MOTOR
10-2
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