Acura 3.5 RL Manual page 604

8. Measure the clearance between the 1st/4th clutch
guide and 1st gear collar with a feeler gauge.
STANDARD: 0 - 0.08 mm (0 - 0.003 in)
NOTE: Take measurements in at least three places,
and use the average as the actual clearance.
CLUTCH GUIDE
1ST/4TH CLUTCH
ASSEMBLY
THRUST WASHER,
43 x 74 mm
1ST/4TH CLUTCH
ASSEMBLY
1ST GEAR COLLAR
FEELER GAUGE
1ST GEAR COLLAR
CLUTCH GUIDE
FEELER GAUGE
9. If the clearance is out of tolerance, remove the
43 x 74 mm thrust washer, and measure its thick-
ness.
NOTE: If the 0.08 mm (0.003 in) feeler gauge can be
inserted, perform this step.
Thickness
THRUST WASHER,
43 x 74 mm
10. Select and install a new 43 x 74 mm thrust washer,
then recheck the clearance.
THRUST WASHER, 43 x 74 mm
11. After replacing the 43 x 74 mm thrust washer, make
sure that the clearance is within the tolerance.