2003 HONDA CIVIC Workshop Manual

Component Location Index
OIL PUMPCHAIN TENSIONER
DRAIN BOLT
OIL PANRemoval, page 7 11Installataon, page 7-27
OIL PUMPOverhaLrl, page 8-8
HL]
BAFFLE PLATE
OIL FILTER FEED PIPEReplacement, page 8-7
OIL FILTERReplacement, page 8-6
OIL CONTROLORIFICE
WASHER
OIL PRESSURE SWITCHSwitch Test, page 8 4Oil Pressure test, page 8'4Replacement, page 8 16
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\OIL PUMPCHAIN GUIDE
8-3

Engine Lubrication
Oil Pressure Switch Test
1. Remove the YEURED wire (A)from the engine oilpressure switch (B).
Check for continuity between the positive terminal(C) and the engine (ground). There should be
continuity with the engine stopped. There should
be no continuity with the engine running.
lf the switch fails to operate, check the engine oil
level. lf the engine oil level is OK. check the engine
oil pressure. lf the oil pressure is OK, replace lhe oil
Dressure switch.
2.
8-4
Oil Pressure Test
lf the oil pressure indicator stays on with the engine
running. check the engine oil level. lf the oil level is
correct:
Connect a tachometer.
Remove the engine oil pressure switch, and install
an oil pressure gauge {A).
{
'1.
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4.
Sta rt the engine. Shut it off immediately if thegauge registers no oil pressure. Repair lhe problem
before continuing.
Allow the engine to reach operating temperature(fan comes on at least twice), The pressure should
be:
Engine Oil Temperature: 176'F (80'Cl
Engine Oil Pressure:
At ldle:70 kPa (0.7 kgf/cm', 10 psi)
mtntmum
At 3,000 rpm: 300 kPa (3.1 kgf/cm',44 psi)
minimum
lf the oil pressure is NOT within specifications,
inspect these items:. Check the oil screenforclogging.. Check the oil pump (see page 8-8).. Check crankshaft and connecting rod bearing
clearances.
I

Engine Oil Replacement
Warm up the engine.
Remove the drain bolt (A), and drain the engine oil.
nA
44 N.m {i1.5 kgf.m,33 lbf.ft)Do not overtighten.
Reinstall the drain bolt with a new washer (B).
Refillwith the recommended oil (see page 3-2).
Capacity
4.0 0 (4.2 US qt) at oilchange.
4.2 014.4 US qt) at oilchange including filter.
5.3 015.6 US $) after engine overhaul.
Run the engine for more than 3 minutes. then check
for oil leakage.
1.
2.
3.
5.
8-5

Engine Lubrication
Engine Oil Filter Replacement
Special Tool Fequired
Oil filter wrench 07HAA-PJ70100
Engine Oil Filter (3/4-turn type)
1. Remove the oil filterwiththesDecial tool.
2. Inspect the threads {A) and rubber seal (B) on the
new filter. Wipe off the seat on the engine block,
then apply a light coat of oil to the filter rubber seal.
Use only filters with a built-in bypass system.
Installthe oilfilter by hand.
After the rubber seal seats, tighten the oil filter
clockwise with the special tool.
Tighten: 3/4 turn clockwise.
Tightening torque: 12 N.m (r.2 kgf.m,8.7 lbf.ft)
07HAA-PJ70100
8-6
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5. lf 4 numbers or marks (1 to 4 or V to VVVV) are
printed around the outside of the filter, use the
following procedure to tighten the filter.
. Spin the filter on until its seal lightly seats against
the block, and note which number or mark is at
the bottom.. Tighten the filter by turning it clockwise 3
numbers or marks from the one you noted. For
example, if number 2 is at the bottom when the
seal is seated, tighten the filter until the number 1
comes around the bottom.
Number when rubberseal is seated.Number after tightening.
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6. After installation, fill the enginewith oil uptothe
specified level, run the engine for more than 3
minutes, then check for oil leakage.
Number or
Mark when
rubber seal is
1
or
V
2
or
VV
3
or
VVV
4
or
VVVV
Number or
Mark after
tightening
41
or or
vvvv. v
2
or
VV
3
or
VVV

Oil Filter Feed Pipe Replacement
1.Remove the oilfilter (see page 8-6).
Remove the oil filter feed pipe.
3. lnstallthetwo20 x 1.5mmnuts(A) ontothenew
oil filter feed pipe. Hold the nut with a wrench, then
tighten the other nut.
4. Tightenthe oil filterfeed pipetothe blockto 49 N.
m {5.0 kgf.m, 36 lbf ft), then remove the nuts from
the oil filter feed oiDe.
8-7

Engine Lubrication
OilPump Overhaul
Exploded View
BAFFLE PLATE6x1.0mm12 N.m{1.2 kgf m,8.7 lbf.ft)
x 1.25 mm27 N.m6x1.0mm12 N.m11.2 kgf.m, 8.7 lbt ft)
(2.8 kst m, 20 lbt ft)Apply engine oiltothe bolt threads.
UPPER BALANCERSHAFT HOLDER
BALANCER SHAFTBEARINGS
Ptr
PU II
EU "
DOWEL PIN
REARBALANCERSHAFT
\
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fs/
tw
FRONTBALANCERSHAFT
LOWERSHAFTBALANCERHOLDERSEALING BOLT39 N.m{4.0 kgf.m,29lbf.ftl
$--."Dowetem
8-8
\-

Oil Pump Removal
1. Setthe No. 1 piston attop dead center {TDC) {see
step 1 on page 6-12).
2. Remove the oil pan(seepageT-11).
3. Remove and discard the oil pumpchaintensioner.
4. To hold the rear balancer shaft, insert a 6 mm pin
driver (A) into the maintenance hole in the lower
balancer shaft holder and through the rear balancer
shaft.
5. Loosen the oil pump sprocket mounting bolt.
6. Remove the oil pump sprocket (A), then remove the
oil pump (B).
(cont'd)
8-9

Engine Lubrication
Oil Pump Overhaul {cont'dl
Oil Pump Inspection
1. Remove the pump housing.
Check the inner-to-outer rotor radial clearance
between the inner rotor (A) and outer rotor {B). lf
the inner-to-outer rotor radial clearance exceeds
the service limit, replace the oil pump.
Inner Rotor-to-Outer Botor Radial Clearance
Standard {New): 0.02 0.16 mm (0.001 -0.006 in.)
Service Limit: 0.20 mm (0.008 in.,
1'[1e-\1.-,-2
1 'a - :.: ,-'r'
8-10
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4.
3. Check th e h ousing-to-roto r axia I clearance between
the rotor (A) and pump housing (B). lf the housing-
to-rotor axial clearance exceeds the service limit.
replace the oil pump.
Housing"to-Rotor Axial Clearance
Standard (New): 0.02 0.07 mm (0.001 -0.003 in.l
Service Limit: 0.12 mm (0.005 in.l
Check the housing-to-outer rotor radial clearance
between the outer rotor (A) and pump housing (B).
lf the housing-to-outer rotor radial clearance
exceeds the service limit, replace the oil pump.
Housing-to-Outer Rotor Radial Clearance
Standard lNewl: 0.15 0.21 mm (0.006-0.008 in.l
Service Limit; 0.23 mm (0.009 in.)
Inspect both rotors and the pump housing for
scoring or other damage. Replace parts if
necessary.
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