Honda Acura NSX 1991 Service Manual page 512

Clutch
Illustrated Index
2ND CLUTCH
CLUTCH DRUM \
CLUTCH PISTON ,
SPRING RETAINER
CLUTCH PLATES
Standard thickness: \
2.3 mm (0.091 in)
CLUTCH END PLATE \
SNAP RING
O-RINGS
Replace.
CLUTCH DISCS
, S t a n d a r d t h i c k n e s s :
1.94 mm (0.076 in)