Honda Civic Service Manual: Engine Oil Pump Overhaul (K24Z7)
View
| 1. |
Oil Pump Exploded View |
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Disassembly
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NOTE: Refer to the Exploded View if needed during this procedure.
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| 1. |
Engine Oil Pump Balancer Shaft End Play - Inspection |
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1.
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Zero the dial indicator against the end of the rear balancer shaft, then
push the rear balancer shaft back and forth and read the end play.
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Balancer Shaft End Play
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Standard (New):
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0.063－0.108 mm (0.00248－0.00425 in)
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Service Limit:
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0.14 mm (0.0055 in)
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| 2. |
Engine Oil Pump Housing |
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1.
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Remove the pump housing.
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| 3. |
Engine Oil Pump Balancer Shaft |
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1.
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Remove the upper balancer shaft holder (with bearings) (A) and
the baffle plates (B).
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2.
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Remove the front balancer shaft (C) and the rear balancer shaft
(D).
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| 4. |
Engine Oil Pump - Inspection |
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1.
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Align the tip of the inner rotor tooth (A) with the mark (B) on the outer
rotor, then check the inner rotor-to-outer rotor radial clearance between
the inner rotor and the outer rotor. If the inner rotor-to-outer rotor radial
clearance exceeds the service limit, replace the oil pump.
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Inner Rotor-to-Outer Rotor Radial Clearance
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Standard (New):
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0.050－0.150 mm (0.002－0.005 in)
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Service Limit:
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0.19 mm (0.007 in)
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2.
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Check the pump housing-to-rotor axial clearance between the rotor (A)
and the pump housing (B). If the pump housing-to-rotor axial clearance exceeds
the service limit, replace the oil pump.
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Pump Housing-to-Rotor Axial Clearance
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Standard (New):
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0.035－0.070 mm (0.002－0.002 in)
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Service Limit:
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0.12 mm (0.004 in)
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3.
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Check the pump housing-to-outer rotor radial clearance between the outer
rotor (A) and the pump housing (B). If the pump housing-to-outer rotor radial
clearance exceeds the service limit, replace the oil pump.
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Pump Housing-to-Outer Rotor Radial Clearance
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Standard (New):
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0.150－0.210 mm (0.006－0.008 in)
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Service Limit:
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0.23 mm (0.009 in)
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| 5. |
Engine Oil Pump Balancer Shaft - Inspection |
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1.
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Measure the inner diameters of the No. 1 bearing for the front balancer
shaft hole and the rear balancer shaft hole.
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Bearing Inner Diameter
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Front:
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Standard (New):
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20.000－20.020 mm (0.78740－0.78819 in)
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Service Limit:
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20.03 mm (0.7886 in)
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Rear:
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Standard (New):
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24.000－24.020 mm (0.94488－0.94567 in)
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Service Limit:
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24.03 mm (0.9461 in)
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Front
Rear
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Front
Rear
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2.
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Measure the diameters of the No. 1 journal on the front balancer
shaft and the rear balancer shaft.
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3.
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Clean both balancer shaft No. 2 journals and the bearing halves
with a clean shop towel, then place both balancer shafts into the
balancer holder.
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4.
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Place one strip of plastigage across each No. 2 journal.
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5.
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Reinstall the bearings and the upper balancer shaft holder, then
tighten the bolts.
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NOTE: Do not rotate the balancer shafts during inspection.
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6.
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Remove the upper balancer shaft holder and the bearings again, and measure
the widest part with the plastigage. If the balancer shaft No. 2 journals
oil clearance is out-of-tolerance, install new bearings, and recheck. If
it is still out-of-tolerance, replace the balancer shafts.
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No. 2 Journal Oil Clearance
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Standard (New):
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0.060－0.120 mm (0.00236－0.00472 in)
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Service Limit:
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0.15 mm (0.0059 in)
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Reassembly
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NOTE: Refer to the Exploded View if needed during this procedure.
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| 1. |
Engine Oil Pump Balancer Shaft |
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1.
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Align the punch mark on the rear balancer shaft in the center
of the two punch marks on the front balancer shaft, then install
the balancer shafts on the lower balancer shaft holder.
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2.
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Apply new engine oil to the threads of the 8 mm bolts (A).
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3.
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Install the upper balancer shaft holder (B) with a new O-ring
(C).
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| 2. |
Engine Oil Pump Housing |
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1.
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Install the pump housing.
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1111M5
Removal
1.
Wiper Arm Assembly
NOTE: Set the wiper arms to the auto-stop position before removal.
...
111150
1.
Battery Terminal - Disconnection
1.
Make sure the ignition switch is in LOCK (0), or the vehicle
...
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