Head bolts HONDA CR-V 1997 RD1-RD3 / 1.G Workshop Manual

lgnition System
5.
lgnition Timing Inspection and Setting
2.
1.Check the idle speed, and adjust it if necessary (see
section 1 1).
Pull out the service check connector 2P (BRN and
BLK wires) from the connector holder located under
the dash on the front passenger side, then connect
the scs service connector (P/N 07PAz - 0010100) to
it.
Start the engine. Hold the engine at 3,000 rpm with
no load (A/T in N or E, Mff in neutral) until the
radiator fan comes on, then let it idle.
Connect the timing light to the No. I ignition wire,
then point the light toward the pointer on the timing
belt cover.
Check the ignition timing in no load conditions:
headlights, blower fan, rear window defogger, and
air conditioner are not operating.
lgnition Timing:
M/T: 16" 12" BTDC (RED) idling in neutral
AlTt'16" !2" BTDC (RED) idling in E or E
CRANKSHAFTPULLEY
4-16
6. lf necessary, adjust the ignition timing as follows.
Loosen the distributor mounting bolts, and turn the
distributor ignition (Dl) housing counterclockwise to
advance the timing or clockwise to retard the tim-
t no,
7.
8.
MOUNTING BOLTS24 N.m {2.4 kgf m, 17 lbtft}
Tighten the distributor mounting bolts, and recheck
the ignition timing.
Disconnect the SCS service connector from the ser-
vice check connector.
To RETARD
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Distributor Replacement
Removal:
1. Disconnect the connector from the distributor.
2. Disconnect the ignition wires from the distributor
ignition (Dl) cap.
3. Remove the mounting bolts from the distributor,
then remove the distributor from the cylinder head.
CAMSHAFTEND
MOUNTING BOLTS8 x 1.25 mm2,1N.m {2.,1kgrf.m, 17 lbf ftl
lnstallation:
1. Bring the No. 1 piston to compression stroke TDC.
2. Coata new O-ring with engine oil, then install it.
3. Align the lug on the end of the distributor and its
mating grooves in the camshaft end, then slip the
distributor into position.
NOTE: The lug on the end of the distributor and its
mating grooves in the camshaft end are both offset
to eliminate the possibility of installing the distribu-
tor 180o out of time.
4. Installthe mounting bolts, and tighten them lightly.
5. Connect the ignition wires to the distributor ignition(Dl) cap as shown,
No. 1CYLINDERMARK
6. Connect the connector to the distributor.
7. Set the ignition timing (see previous page).
8. After setting the ignition timing, tighten the mount-
ing bolts.
4-17
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Cruise Gontrol
Actuator Test (cont'dl
5. With voltage and vacuum still applied, try to pull the
actuator rod out by hand. You should not be able topull it out. lf you can. it is defectrve.
8.
9.
7.
Disconnect ground from the No. 3 terminal. The actu-
ator rod should return. lf it does not return, but the
vent hose and filter are not plugged, the solenoid
valve assembly is defective.
Repeat steps 2 through 5. and disconnect ground
from the No. l terminal. The actuator rod should
return. lf it does not return, but the vent hose and
filter are not plugged, the solenoid valve assembly
is defective.
lf you replace the solenoid valve assembly, be sure
to use new O-rings on each solenoid.
Disconnect power and ground from the 4P connector.
Disconnect the vent hose from the actuator. Connect
a vacuum pump to the actuator vent hose port, and
apply vacuum. The actuator rod should pull in com-pletely. lf not, the vacuum valve is stuck open.
Replace the actuator,
4-42
I
't.
Actuator Replacement
3.
4.
7.
Ar
Pull back the boot. and loosen the locknut. Then dis-
connect the cable from the bracket.
Disconnect the cable end from the actuator rod.
1.
4.
.J.
Disconnect the 4P connector from the actuator.
Disconnect the vacuum hose from the vacuum tank.
Pull out the vent hose.
Remove the three mounting bolts and the actuator
with the bracket.
ACTUATORACTUATOR
CABLE
lf necessary, disconnect the cable end from the link-
age over the accelerator pedal, then turn the grom-
met 90' in the bulkhead. and remove the cable.
Install in the reverse order of removal, and adjust
free play at the actuator rod after connecting the
cable (see page 4-43).
I
6.
I
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Valve Seals
Replacement (cylinder head removal not required)
The procedure shown below applies when using the in-
car valve spring compressor (Snap-on YA8845 with
YA8845-2A 7/8" auachment). Use approved eye protec-
tion.
1. Turn the crankshaft so that the No. 1 and the No. 4
pistons are at top dead center (TDC).
2. Remove the cylinder head cover.
3. Remove the distributor.
4. Loosen and disconnect the timing belt from the
camshaft pulleys.
5. Remove the camshaft holder bolts. then remove the
camshaft holders, the camshafts and rocker arms.
lntake Valve Seals
6. Using the 6 mm bolts supplied with the tool, mount
the two uprights to the cylinder head at the end
camshaft holders. The uprights fit as shown.
7. Insert the cross shaft through the top hole of the
two uprights,
at.
9.
Select the 7/8 in. diameter long compressor attach-
ment, and fasten the attachment to the front hole of
the lever arm with the speed pin supplied.
Position the piston at TDC, and insen an air adaptor
into the spark plug hole. Pump air into the cylinder
to keep the valve closed while compressing the
springs and removing the valve keepers.
10. Put shop towels over the oil passages to prevent
the valve keepers from falling into the cylinder
head.
Position the lever arm under the cross shaft so the
lever is perpendicular to the shaft and the compres-
sor attachment rests on top of the retainer for the
spring being compressed. Use the rear position slot
on the lever as shown,
't1.
OIL PASSAGE
OIL PASSAGES
(cont'd)
6-5
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Valve Seals
12.
Replacement (cylinder head removal not requiredl (cont'dl
Using an upward motion on the lever arm, compress
the valve spring and remove the keepers from the
valve stem. Slowly release pressure on the spring.
Repeat step 11 for the other valve in that cylinder.
Remove the valve seals (see page 6-24).
Installthe valve seals (see page 6-29).
lnstall the springs, the retainers and the keepers in
reverse order of removal.
'17. Repeat steps 9 to 16 for the other three cylinders.
Exhaust valve Seals
18. Using the 5 mm bolts supplied with the tool, mount
the two uprights to the cylinder head at the end
camshaft holders. The uprights fit as shown.
19. Insert the cross shaft through the bottom hole of
the two uprights.
Select the 7/8 in. diameter short compressor attach
ment, and fasten the attachment to the No. 4 hole of
the lever arm with the speed pin supplied.
Position the piston at TDC, and insert an air adaptor
into the spark plug hole. Pump air into the cylinder
to keep the valve closed while compressing the
springs and removing the valve keepers.
13.
14.
15.
16.
20.
t1
22. Put shop towels over the oil passages to prevent
the valve keepers from falling into the cylinder
neao.
23. Position the lever arm under the cross shaft so the
lever is perpendicular to the shaft and the compres-
sor attachment rests on top of the retainer for the
spring being compressed. Use the rear position slot
on the lever as shown.
Using a downward motion on the lever arm, com-
press the valve spring and remove the keepers from
the valve stem. Slowly release pressure on the
spring.
Repeat step 24 for the other valve in that cylinder.
Remove the valve seals (see page 6-24).
Install the valve seals (see page 6-29).
Install the springs, the retainers and the keepers in
reverse order of removal.
Repeat steps 21 to 28 on the other three cylinders.
24.
21.
28.
29.
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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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23. Remove the intake manifold mounting bolts and
water bvDass hose.
8 x 1.25 mm2,1 N.m 12.4 kgt.m,17 tbf.ft)
24. Loosen the locknuts and adjusting screws,
INTAKE
No.3 No.2 No. 1
No.3 No.2 No. 1
EXHAUST
No. 4
27. Remove the cylinder head.
6-21
25. Remove the camshaft holder bolts, then remove the
camshaft holders and rocker arms. Make note of the
rocker arm Dositions.
26. Remove the cylinder head bolts. To prevent
warpage, unscrew the bolts in sequence 1/3 turn at a
time; repeat the sequence until all bolts are loosened.
CYLINDER HEAD BOLTS LOOSENING SEOUENCE:
ROCKER ARM
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Camshafts
4.
Inspection
1.
7.
Loosen the adjusting screws.
Remove the camshaft holders.
Mark the rocker arms, then remove them.
Reinstall the camshaft and holders. Tighten the
camshaft holder bolts in a crisscross pattern, begin-
ning with the inner bolts.
9.8 N.m (1.0 kgf.m.7.2 lbf.ft)
Seat the camshafts by pushing them toward the dis-
tributor end of the head with a screwdriver.
Zero the dial indicator against the end of the
camshaft, push the camshaft back and forth and
read the end play.
Camshaft End Play:
Standard lNewl: 0.05 - 0.15 mm
10.002 - 0.005 in)
Service Limit: 0.5 mm (0.02 in)
Unscrew the camshaft holder bolts two turns at a
time, in a crisscross pattern, Then remove the
camshaft holder bolts from the cvlinder head.
Lift the camshafts out of the cylinder head. wipe
them clean, then inspect the lift ramps, Replace the
camshaft if any lobes are pitted, scored, or exces-
sively worn.
Clean the camshaft journal surfaces in the cylinder
head, then set the camshaft back in Dlace. Place aplastigage strip across each journal.
Install the camshaft holders. and torque the bolts tothe values and in the sequence shown on page 6-31.
NOTE: Do not rotate the camshafts during inspection.
8.
10.
6-22
11. Remove the camshaft holders. Measure the widest
portion of plastigage on each journal.
Camshatt-to HoldGr Oil Clearance:
Standard {Newl: 0.030 - 0.069 mm
{0.0012 - 0.0027 in}
Servico Limit: 0.15 mm (0.006 in)
12. lf camshaft-to-holder oil clearance is out of toler-
ance:
. And the camshaft has already been replaced,
you must replace the cylinder head.. lf the camshaft has not been replaced, first check
total runout with the camshaft suoDorted on V-
blocks.
Camshaft Total Runout:
Standard (N6w): 0.03 mm (0.001 in) max.
Service Limit 0.04 mm (0.(X)2 in)
Rotat6 camshattwhile measuring.
- lf the total runout of the camshafts is within tol-
erance, replace the cylinder head
- lf the total runout is out of tolerance, replace the
camshafts and recheck. lf the oil clearance is still
out of tolerance, replace the cylinder head.
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Cylinder Head
Installation
Installthe cylinder head in the reverse order of removal:
1. Clean the cylinder head and block surfaces.
2. Clean the oil control orifice. Install the cylinder headgasket, dowel pins and the oil control orifice on thecylinder block. Always use a new cylinder head gas-ket.
CYLII{DER HEADGASKETR€place.
DOWEL PIN
O.RINGRoplace.
DOWELPIN
OIL CONTBOLORIFICEClean.
Apply clean engine oil to the bolt threads and underthe bolt heads.
4. Tighten the cylinder head bolts in two steps. In thefirst step tighten all bolts, in sequence, to about 29
N.m {3.0 kgf.m,22 lbf.ft); in the finat step, tighten inthe same sequence to 85 N.m (8.7 kgf.m,63 lbf.ft).
Use a beam-type torque wrench. When using a pre-
set-type torque wrench, be sure to tighten slowly
and do not overtighten.
lf a bolt makes any noise while you are torquing it,loosen the bolt, and retighten it from the 1st step.
CYLINDER HEAD BOLTS TOROUE SEOUENCE:
Tighten the intake manifold mounting bolts (see
page 6-21).
Install the exhaust manifold bracket. and tighten thenew self-locking nuts (see page 6-20).
6-30
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Cylinder Head
Installation (cont'dl
'13. Align the marks on the cylinder head plug to thecylinder head upper surface, then install the cylin
der head plug in the end of the cylinder head.
CYLINOER HEADPLUGReplace.
lnstallthe back cover.
To set the camshafts at TDC position for the No. lpiston, align the holes in the camshafts with theholes in the No. l camshaft holders and insert 5.0mm pin punches in the holes. Install the keys into
the camshaft grooves.
37 N m (3.8 *gl.m, 27 lbt.tr)
9.8 N.m (1.0 kgtm,7.2|hrftl
Push the camshaft pulleys onto the camshafts. thentighten the retaining bolts to the torque specified.
6-32
14.
KEYS
I x 1.25 mm
6x1.0mm
Install the timing belt (see page 6-1 1).
Adjust the valve clearance (see page 6-3).
Thoroughly clean the head cover gasket and thegroove.
lnstall the head cover gasket in the groove of thecylinder head cover. Seat the head cover gasket in
the recesses for the camshaft first, then work it into
the groove around the outside edges. Make sure thehead cover gasket is seated securely in the corners
of the recesses with no gap.
17.
'18.
19.
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