lower HONDA CR-V 1998 RD1-RD3 / 1.G User Guide

Timing Belt
Installation (cont'd)
3. Install the timing belt tightly in the sequence shown.
O Timing belt drive pulley (crankshaft) J @ Adjust-
ing pulley =r @ Water pump pulley r @ Exhaust
camshaft pulley --) @ Intake camshaft pulley.
NOTE: Make sure the timing belt drive pulley and
camshaft pulleys are at TDC.
4. Loosen and retighten the adjusting bolt to tension
the timing belt.
5. Clean. then install the lower cover and middle
cover.
Install the crankshaft pulley, then tighten the pulley
bolt (see page 6-7).
Rotate the crankshaft pulley about five or six turns
counterclockwise so that the timing belt positions
on the pulleys.
Adjust the timing belt tension {see page 6-9).
1.
6-12
9. Check that the crankshaft pulley and camshaft pulleys
are both at TDC.
POINTER ON
lf the camshaft pulleys are not positioned at TDC,
remove the timing belt. adjust the position following
the procedure on page 6-11. then reinstall the timing
belt.
Installthe cylinder head cover (see page 6-32).
After installation, adjust the tension on each belt.
. See section 4 for alternator belt tension adjust-
menr.
. See section 22 for NC compressor belt tension
adjustment.
. See section 17 for P/S pump belt tension adjust-
ment.
10.
11.
12.
POINTER
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CKF Sensor
Replacement
1.
|o|'ln PUUCY BMCKET SOLIl0 r 1.25 mm14 .m 14.5 kgl.m,3:' lbtftl
Remove the guard bar and splash shield (see page
5-7 t.
Loosen the lock bolt and mounting bolt, then
remove the P/S pump belt.
MOUNTING BOLT8 x 1.25 mm
PUMPBELT
Loosen the adjusting bolt and idler pulley bracket
bolt, then remove the Ay'C comDressor belt.
ADJUSTING BOLTLOCKNUT8 x 1.25 mm24 N.m {2.4 kgf.m, 17 lbf.ft)
24 N.m (2.{ kgf.m, 17 lbf.ttl
24 N.m 12.4 lgf.m, 17 lbl.ftl
4. Loosen the locknut and mounting nut, then remove
the alternator belt.
LOCKNUT8 x 1.25 mm24 N.m (2.4 kgl.m, 17 lbtftl
10 x 1 .25 mma4 N.m (4.5 kgt m, 33 lbtft)
E
6.
7.
aJ.
Remove the cylinder head cover.
Remove the crankshaft pulley (see page 6-7).
Remove the middle cover and the lower cover.
Disconnect the CKF sensor connector, then remove
the CKF sensor.
6x1.0mm11 N.m {1.r kgnm,8.0 lbfft)
9. Install the CKF sensor in reverse order of removal.
BELT
CKF SENSOR
6-13
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Valve Seats
Reconditioning
lf the guides are worn (see page 6-25), replace them (seepage e25) before reconditioning the valve seats.
1. Renew the valve seats in the cylinder head using avalve seat cutter.
Carefully cut a 45o seat, removing only enoughmaterialto ensure a smooth and concentric seat.
Bevel the upper edge of the seat with the 30. cutterand the lower edge of the seat with the 60" cutter.Check width of seat and adjust acco.dingly.
Make one more very light pass with the 45o cutter toremove any possible burrs caused bv the other cut-ters.
Valve Seat Width (lntake and Exhaust):
Standard {N.w}: 1.25 - 1.55 mm (0.049 - 0.051 in)Servica Limit: 2.0 mm (0.08 in)
o
o
5. After resurfacing the seat, inspect for even valve
seating: Apply Prussian Blue compound to the valve
face, and insert the valve in its original location in
the head, then lift it and snap it closed against the
seat several times.
ACTUALSEATINGSURFACE
VALVESEAT
7.
PRUSSIAN
The actual valve seating surface, as shown by the
blue compound, should be centered on the seat.. lf it is too high (closer to the valve stem), you
must make a second cut with the 60" cutter tomove it down, then one more cut with the 45"
cutter to restore seat width.
. lf it is too low (closer to the valve edge), you
must make a second cut with the 30. cutter tomove it up, then one more cut with the 45. cutter
to restore seat width.
NOTE: The final cut should alwavs be made withthe 45" cutter,
Insert the intake and exhaust valves in the head,
and measure valve stem installed heioht.
Intake Vslve Siem Instslted Height:
Standard {Newl: it0.765 - 41.235 mm
11.6049 - 1.6234 inl
Sarvico Limit: itl.il85 mm (1.6333 in)
Exhaust Valve Stem Installed H6ight:
Standard {New}: 42.755 - €.235 mm
11 .61137 - 1 .7022 inl/(|.,185 mm (1.7120 in)
VALVE STEMINSTALLED HEIGHT
8. lf valve stem installed height is over the servicelimit. replace the valve and recheck. lf it is still overthe service limit. replace the cylinder head; thevalve seat in the head is too deeo.
Servico Limit:
f-]
6-28
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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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Engine Oil
Inspection
2.
1.Park the vehicle on level ground, and turn off theengine. Allow the oil a few minutes to drain backinto the oil pan so the dipstick will show the actuallevet,
Make certain that the oil level indicated on the dip-stick is between the upper and lower marks. Insertthe dipstick carefully to avoid bending it.
lf the level has dropped close to the lower mark,add oil until it reaches the upper mark.
8-4
Replacement
CAUTION: Remove the drain plug caretuly white theengino is hot; the hot oil may cause scalding.
1. Warm up the engine.
2. Drain the engine oil.
WASHERR€place.ORAIN BOL4il N.m {4.5 kgtm,33 lbf.ft)Do not overtighten.
3. Reinstall the drain bolt with a new washer, and refill
with the recommended oil.
RequirementAPI Service Grade: Use "Energy
Conserving " SJ or "Energy
Conserving ll" SH grade oil. SAE
5W - 30 preferred: You can also
use an oil that bears the API
CERTIFICATION mark.
Capacity3.5 { (3.7 US qt,3.1 lmp qt)
at oil change.
3.8 / (4.0 US qt,3.3 lmp qr)
at oil change including filter.
4.6 { (4.9 US qt, 4.0 lmp qt)
after engine overhaul.
Change
Inlerval
Every 7,500 miles (12,000 km) or12 months (Normal conditions)
Every 3,750 miles (6,000 km) or 6months (Severe conditions).
NOTE: Under normal conditions, the oil filtershould be replaced at every other oil change. Undersevere conditions, the oil filter should be replacedat each oil change.
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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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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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Radiator
1.
2.
3.
4.
Replacement
CONDENSERFAN,/SHROUDASSEMBLY
Drain the engine coolant.
Remove the upper and lower radiator hoses, and
ATF cooler hoses.
Disconnect the fan motor connector.
Remove the radiator upper bracket, then pull up the
raotalor,
5. Remove the fan shroud assemblies and other parts
from the radiator.
6. lnstall the radiator in the reverse order of removal.
NOTE:
. Set the upper and lower cushions securely.
. Fill the radiator with engine cooiant and bleed the air.
RADIATOR CAP
RADIATOR
6x1.0mm9.8 N.m 11.0 kgf.m,7.2 tbl.trl
6x1.0mm7 N.m (0.? kgd.m, 5 lbl.ftl
UPPER MDIATOR HOSE
Reler to section 14when installing.
DRAIN PLUG
LOWER CUSHION
LOWERTOR HOSE
RADIATORASSEMBLY
6x1.0mm7 N.|n 10.7 kgt.m,5 tbt.ftl
rriItriiii
10-4
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Fan Control
Fan Motor Testing
1. Disconnect the 2P connector.
Terminalside ofmale terminals
Test the motor by connecting battery power to theNo. 2 terminal and ground to the No. 1 terminal.
lf the motor fails to run or does not run smoothly,reptace rt.
RADIATOR FAN MOTOR
10-14
Radiator Fan Switch Testing
E@ Removing the radiator fan switch whilethe engine is hot can cause the coolant to spray out, seri-ously scalding you. Always let the enginc and radiatorcool down before removing the radiator fan switch.
1. Remove the radiator fan switch from the thermostathousing (see page 10 '10).
2. Suspend the radiator fan switch in a container ofwater as shown.
Heat the water, and check the temperature with athermometer. Do not let the thermometer touch thebottom of the hot container.
Measure the continuity between the A and B termi-nals according to the table.
Bleed the air from the cooling system after installingthe radiator fan switch (see page 10-5).
Terminal
op".*i- Tr"ip".a*" \.B
SWITCH
ON196 - 203"F
{91 - 95.C)o---o
OFF
5 - 14"F (3 - 8.C)
lower than the tem-peratu re wh en itgoes on
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ECM/PCM Data
By connecting the OBD ll scan tool or the Honda PGM Tester to the 16P data link connector (OLC), various data can be
retrieved from the ECM/PCM. The items listed in the table below conform to the SAE recommended practice
The Honda PGM Tester also reads data beyond that recommended by SAE.
understanding this data will help to find the causes of intermittent failures or engine problems.
NOTE:
The ',operating values" given below are approximate values and may be different depending on the environment and
the individual vehicle.
Unless noted otherwise. "at idle speed" means idling with the engine completely warmed up, transmission in position
Park or neutral and the A,./C and all accessories turned otf.
DataDesc.iptionOp€rating ValuoFreeze Data
Diagnostic
Trouble Code
(DTC)
lf the ECM/PCM detects a problem, it will store it as a
code consisting of one letter and tour numbers
Depending on the problem, an SAE-defined code (Poxxx)
or a Honda-defined code (P'lxxx) will be output to the
tester.
lf no problem is detected,
there is no output.
YES
Engine SpeedThe ECN4/PCN4 computes engine speed from the signals
sent from the Crankshaft Position sensor.
This data is used for determining the time and amount of
fuel iniection.
Nearly the same as
tachometer indication
At idle speed:'97 - 98 models:
750 t 50 rpm'99 - 00 models:
730 f 50 rpm
YES
Vehicle SpeedThe ECM/PCM converts pulse signals from the Vehicle
Speed Sensor (VSSI into speed data.
Nearly the same as
speedometer indicationYES
Manifold
Absolute
Pressure (MAP)
The absolute pressure caused in the intake manifold by
engine load and speed.
With engin6 stopped:
Nearly the same as atmo-
spheric pressure
At idle speed:
2a - 41 kPa {210 - 310
mmHg, 8.3 - 12.2 inHg)
YES
Engine Coolant
Temperature
{ECT)
The ECT sensor converts coolant temperature into volt-
age and signals the ECM/PCM. The sensor is a thermistor
whose internal resistance changes with coolant tempera-
ture. The ECM/PCM uses the voltage signals from the
ECT sensor to determine the amount of injected fuel
With cold engine:
Same as ambient temPer-
ature and IAT
With engine warmed uP:
approx. 163 - 2'12'F
(73 - 100"c)
YES
Heated Oxygen
Sensor (HO25)
(Primary,
Sensor 1)
(Secondary
Sensor 2)
The Heated Oxygen Sensor detects the oxygen content in
the exhaust gas and sends voltage signals to the
ECMiPCM. Based on these signals, the ECM/PCM controls
the airlfuel ratio. When the oxygen content is high (that is.
when the ratio is leaner than the stoichiometric ratio), the
voltage signal is lower.
When the orygen content is low (that is, when the ratio
is richer than the stoichiometric ratio), the voltage signal
is higher.
0.0 - 1.25 V
At idle speed:
about 0.1 - 0.9
NO
(cont'd)
1 1-65
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