Oil Pump Inspection - Honda S2000 Service Manual

Engine Lubrication
Oil Pump Overhaul (cont'd)
Inspection
6. Remove the DumD cover.
7. 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 outer rotor and oil
p u m p h o u s i n g .
Inner Rotor.to.Outer Rotor Radial Clearance
Standard (New): 0.02 0.15 mm
10.001 0.006 in.)
Service Limit:
0.20 mm (0.008 in.)
8 . Check the housing-to-rotor axial clearance between
the rotor (A) and pump housing (B). lf the housing-
to-rotor axial clearance exceeds the service limit,
replace the outer rotor and oil pump housing.
Housing-to-Rotor Axial Clearance
Standard lNewl: 0.02 0.07 mm
(0.001 0.003 in.l
Service Limit:
0.12 mm {0.005 in.)
8-10
9. Check the housing-to-outer rotor radial clearance
between the outer rotor (A) and pump housing (B).
lf lhe housing-to-outer rotor radial clearance
exceeds the service limit, reolace the outer rotor
a n d o i l p u m p h o u s i n g .
Housing-to-Outer Rotor Radial Clearance
Standard (Newl: 0.15 - 0.21 mm
(0.006 0.008 in.)
Service Limit: 0.23 mm {0.009 in.}
Inspect both rotors and the pump housing for
scoring or other damage. Replace pans if
necessary.
1 0 .