end HONDA CR-V 1998 RD1-RD3 / 1.G Service Manual

Pistons and
Crankshaft
Selection
Connecting Rod Code Location
Numbers have been stamped on the side of each con-
necting rod as a code for the size of the big end. Use
lhem, and the letters stamped on the crankshaft (codes
for rod journal size), to choose the correct bearings.
lf the codes are indeciDherable because of an accumula-
tion of dirt and dust, do not scrub them with a wire
brush or scraper. Clean them only with solvent or deter-
gent.
8€aring ldentif ication
aolor code is on theedge oltne Deanng.
Larger big end bore
---------------r. sma er bearino {thicker)
RedPinkGreen
PinkGreenBrown
GreenBrownBlack
GreenBrownElackBlue
Half of number isstamped on beanngcap and the othelhalf is stamped onrod.
Connecting Rod Journal Code Locations {Lettersl
llAort ll
llBo'll ll
llcotrll ll
I l-.. ilril It-lSmaller'odSmallerbeanng(thicker)
234
Removal
Remove the oil pan assembly.
Remove the right side cover.
1.
Remove the oil screen.
Remove the oil pump.
OIL SCREEN
(cont'd)
7-9
OIL PUMP
5. Remove the baffle plate.
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Piston PinsConnecting Rods
Assemble the Piston Pin Tools as shown.
PISTON BASE HEAO07HAF -PL20102
PISTON BASE07973 - 6570500
Adjust the length A of the piston pin dflver.
A: 49.70 mm 11.957 in)
PIN DRIVER HEAIPE00320
\
RIr1
nT---
u
ffi-"""-
u_ll
3. Place the piston on the piston base, and press the
pin out with a hydraulic press. Make sure that the
recessed portion of the piston aligns with the lips
on the collar.
7-14
Removal
1.
PISTON07973 -
PISTON PIN BASE INSERT07GAF - PH60300
PISTON PIN DRIVER SHAFT07973 - PEt 0310
PILOT COLLAR07LAF - PR30100Embossod mark facing up.
Selection
Each rod falls into one of four tolerance ranges (from 0
to + 0.024 mm {0 to + 0.0009 in). in 0.006 mm (0.0002 in)
increments) depending on the size of its big end bore.
lt's then stamped with a number 1.1.2,3, or 4) indicating
the range.
You may find any combination ot 1,2,3, or 4 in any
engrne.
Normal Bore Size: ,18.0 mm (1.89 in)
Inspect the connecting rod for cracks and heat damage.
CONNECTING ROD BOREREFENENCE NUMBERHalf of number is stamped onbearing cap, the other half onconnectno roo.
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Piston Pins
lMeasure the diameter of the piston pin.
Piston Pin Diameter:
Standard lNewl: 20.996 - 21.000 mm
{0.8266 - 0.8268 in}
20.998 - 21.002 mm(0.8267 - 0.8268 in)
Inspection
1.
Oversize:
2. Zeto the dial indicator to the piston pin diameter.
7-16
3. Measure the piston pin to piston clearance. lf the
piston pin clearance is greater than 0.024 mm
(0.0009 inL remeasure using an oversized piston pin.
NOIE: All replacement piston pins are oversize.
Piston Pin-to-Piston Clearance:
Standard lNewl: 0.010 - 0.017 mm
10.0004 - 0.0007 in)
Check the difference betlveen the piston pin diame-
ter and the connecting rod small end diameter.
Piston Pin-to-Connecting Rod Interference:
Standard (New): 0.015 - 0.032 mm(0.0006 - 0.0013 inl
4.
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Piston Rings
End Gap
2.
1.Using a piston, push a new ring into the cylinder
bore 15 - 20 mm (0.6 0.8 in) from the bottom
Measure the piston ring end-gap with a feeler
ga uge:
. lf the gap is too small, check to see if you have
the proper rings for your engine.
. lf the gap is too large, recheck the cylinder bore
diameter against the wear limits on page 7 '13.
Piston Ring End-Gap:
Top Ring
Standard (Newl:0.20 - 0.30 mm
10.008 - 0.012 inl
Service Limit: 0.60 mm {0.024 inl
Second Ring
Standard lNew): 0.i10 - 0.55 mm
{0.016 - 0.022 inl
Service Limit: 0.70 mm (0.028 in)
Oil Ring
Standard (Newl: 0.20 - 0.50 mm
10.008 - 0.020 in)
Service Limit: 0.70 mm (0.028 in)
PISTON RING
--:4 llEND GAP -1f-
Ring-to-Groove Glearance
After installing a new set of rings, measure the ring-to-
groove clearances:
Top Ring Clearance:
Standard {New}: 0.055 - 0.080 mm
10.0022 - 0.0031 inl
Service Limit: 0.13 mm 10,005 inl
Second Ring Clearance:
Standard {Newl: 0.035 - 0.060 mm
{0.001'l - 0.0024 inl
Service Limit: 0,13 mm 10.005 inl
7-17
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Crankshaft Oil Seal
Rotate the rings in their grooves to make sure they
do not bind.
Position the ring end gaps as shownl
SECOND RING GAP
Appror.90"
DO NOT position any ring gap
at piston thrust surfaces,
OIL RINGGAPAppror.90'TOP RI.IIG GAPSPACER GAP
DO NOT position any ring gap
in line with the piston pin hole.OIL RING GAP
1.
lnstallation
The seal mating surface on the block should be dry
Apply a light coat of oil to the crankshaft and to the
lip of the seal.
Drive the crankshaft oil seal squarely into the right
sroe cover.
DRIVER
lnstall seal with thepart number sidefacing out.
Confirm that the clearance is equal all the way around
with a feeler gauge.
Clearance:0.5 - 0.8 mm {0.02 - 0.03 inl
NOTE| Refer to pages 7 23 and 8-10 for installation
of the oil oumD side crankshait oil seal.
0.5-0.8 mm{O.02 0.03 in)
7-19
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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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Oil Seals
18. Tighten the bolts and nuts finger tight at six points.
Tighten all bolts and nuts, starting from nut O. clock-
wise in three steps. Excessive tightening can cause
distortion ot the oil pan gasket and oil leakage.
Torque: 12 N.m (1.2 kgt.m,8.7 lbtft)
19.
1.
lnstallation
Dry the crankshaft oil seal housing.
Apply a light coat of grease to the crankshsft and to
the lips of the seals.
Using the special tool, drive in the timing pulley-end
seal until the driver bottoms against the oil pump.
When the seal is in place, clean any excess grease
off the crankshaft and check that the oil seal lip is
not distorted,
SEAL DRIVEROTLAD - PT3O1OAlnstall sealwith theparts number sidefacing out.
(cont'd)
7-23
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Oil Seals
Installation (cont'dl
4. l/easure the flywheel-end seal thickness and the oil
seal housing depth. Using the special tool, drive theflywheel end seal into the rear cover to the point
where the clearance between the bottom of the oil
seal and the right side cover is 0.5 - 0.8 mm (0.02 -
0.03 in) (see page 7-19). Align the hole in the driverattachment with the pin on the crankshaft.
DRIVERATTACHMENT76x80mm07948 - 5800101Install sealwith thenumber side facingout,
<:
7 -24
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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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Cooling
f ffustrated Index ........... ..... 1O-2
Radiator
Rep|acement ...........,....,...................... 10-4
Engine Coolant Refilling and
Bleeding ..,.,................. 10-5
Cap Testing .................... 10-7
Testing ......10-7
Thermostat
Rep|acement ....................................... 10-8
Testing ...... 10-9
Water Pump
lllustrated lndex ....,..... .. 10-10
Inspection . 10-1 1
Replacement ....................................,.. 10-1 1
Fan Gontrol
Component Location Index ............... 10-12
Circuit Diagram ............. 10-13
Fan Motor Testing ......... 10-14
Radiator Fan Switch Testing ............. 10-14
Coolant Temperature Gauge
Gauge Testing ............... 10-15
Coolant temperature Sending
Unit Testing ........,....... 10-15
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