1998 HONDA CR-V Crankshaft main bearing torque

Main Bearings
2.
3.
1.
4.
Clearance
To check main bearing-to-journal oil clearance,
remove the main caps and bearing halves.
Clean each main journal and bearing half with a
clean shop towel.
Place a strip of plastigage across each main journal.
NOTE: lf the engine is still in the vehicle when you
bolt the main cap down to check clearance, the
weight of the crankshaft and flywheel will flatten
the plastigage further than just the torque on the
cap bolt, and give you an incorrect reading. For an
accurale reading, support the crank with a jack
under the counterweights and check only one bear-
Ing aI a Irme.
Reinstall the bearings and caps, then torque the
bolts,
1st step:25 N'm (2.5 kgf.m, 18lbf.ft)
Final siep: 76 N'm 17.8 kgl.m, 56 lbf.ftl
NOTE: Do not rotate the crankshaft during inspec-
tron.
Remove the bearing cap again, and measure the
widest part of the plastigage.
Main Bearing.to.Journal Oil Clearance:
Stand8.d {New):
No. 1,2,4,5 Journsls:
0.02i1- 0.0i12 mm (0.0009 - 0.0017 inl
No. 3 Journal:
0.030 - 0.0i18 mm (0.0012 - 0.0019 inl
Service Limit: 0.06 mm 10.002 in)
lf the plastigage measures too wide or too narrow,(remove the engine if it's still in the vehicle),
remove the crankshaft, and remove the upper half
of the bearing. Install a new, complete bearing with
the same color code (select the color as shown on
the next page). and recheck the clearance, Do not
file, shim, or scrape the bearings or the caps to
adjust the clearance.
lf the plastjgage shows the clearance is still incor-
rect, try the ne)d larger or smaller bearing {the color
listed above or below that one), and check again. lf
the proper clearance cannot be obtained by using
the appropriate larger or smaller bearings, replace
the crankshaft and start over.
7.
7-7
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Main BearingsConnecting Rod Bearings
Selection
Crankshaft Bore Code Location
Letters have been stamDed on the end of the block as a
code Jor the size of each of the 5 main journal bores.
Use them, and the numbers or bars stamped on the
crank (codes for main journal size), to choose the correct
beanngs.
lf the codes are indecipherable because of an accumula-
tion of dirt and dust. do not scrub them with a wire
brush or sc.aper. Clean them only with solvent or deter-
gent.
Main Journ.l Cod. Locrtions lNumbcB oi Bar3l
Bearing ld.ntif icrtionColor code ison the edge ofthe bearing.
7-8
IcD
"""""""" Smallerbearing(rhicker)
Green
Green
ElaclAlue
Clearance
Remove the connecting rod cap and bearing half.
Clean the crankshaft rod journal and bearing half
with a clean shop towel.
Place the plastigage across the rod journal.
Reinstall the bearing half and cap, and torque the
nuts.
1.
7.
Torqus: 31 N.m (3.2 kgf.m. 23 lbf.ft)
NOTE: Do not rotate the crankshaft during inspec-
tion.
Remove the rod cap and bearing half, and measure
the widest part of the plastigage.
Connesting Rod Bearing-to-Journal Oil Clearancc:
Standard {Newl: 0.020 - 0.038 mm
{0.0008 - 0.0015 in)
Service Limit: 0.05 mm {0.002 inl
lf the plastigage measures too wide or too narrow,
remove the upper half of the bearing, install a new.
complete bearing with the same color code {select
the color as shown on the next page), and recheck
the clearance. Do not file, shim, or sc.ape the bear-
ings or the caps to adjust the clearance.
lf the plastigage shows the clearance is still incor
rect, try the next larger or smaller bearing {the color
listed above or below that one). and check clear-
ance again. lf the proper clearance cannot be
obtained by using the appropriate larger or smaller
bearings. replace the crankshaft and start over.
PLASTIGAGE
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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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