Acura NSX 1991 Manual page 153

Main Menu
Oil Pump
Removal/lnspection/lnstallation
1. Drain the engine oil.
2. Remove the timing belt (see page
3. Remove the dipstick and the pipe.
4. Remove the oil filter assembly.
5. Remove the oil pan.
6. Remove the oil screen.
7. Remove the baffle plate,
8. Remove the oil pass pipe and the joint.
9. Remove the mounting bolts and the oil pump
assembly.
Replace.
OIL PUMP
O-RINGS
Replace.
OIL SCREEN
OIL PASS PIPE
AND JOINT
Table of Contents
6-15('91-'93)or('94-'96)).
BAFFLE PLATE
10. Remove the nine screws from the pump housing,
then separate the housing and cover.
11. Check the inner-to-outer rotor radial clearance.
Inner-to-Outer Rotor Radial Clearance
Standard (New): 0.05 – 0.21 mm
(0.002 – 0.008 in)
Service Limit: 0.23 mm (0.009 in)
OUTER ROTOR
INNER ROTOR
12. Check the housing-to-rotor axial clearance.
Housing-to-Rotor Axial Clearance
Standard (New): 0.02 – 0.07 mm
(0.001 – 0.003 in)
Service Limit: 0.12 mm (0.005 in)
PUMP HOUSING
OUTER ROTOR