Clearance Inspection - Honda Acura NSX 1991 Service Manual

Mainshaft Assembly
-Clearance Inspection
NOTE: If replacement is required, always replace the
synchro sleeve and hub as a set.
Measure the clearance between 2nd and 3rd gears.
Standard: 0.06-0.23
(0.0024-0.0091
Service Limit: 0.3 mm (0.012 in)
2. If the clearance exceeds the service limit, measure
the thickness of 3rd gear.
Standard: 36.92-35.97
Service Limit: 35.80 mm 11.4094 in)
If the thickness of 3rd gear is less than the service
limit, replace 3rd gear with a new one.
If the thickness of 3rd gear is within the service
limit, replace the 3rd/4th synchro hub with a new
one.
mm
in)
mm
3. Measure the clearance between 4th gear and the
spacer collar.
0.06-0.21 mm
Standard:
(0.0024-0.0083
Service Limit: 0.3 mm (0.012 in)
4. If the clearance exceeds the service limit, measure
distance @I on the spacer collar.
Standard:
29.53-29.68
(1.1626-1.1646
Service Limit: 29.51 mm (1.1618 in)
5. If distance @ is more than the service limit,
replace the spacer collar with a new one.
If distance @ is within the service limit, measure
the thickness of 4th gear.
Standard: 3 5 . 9 2 - 3 5 . 9 7 m m
(1.4142-1.4161
Service Limit: 35.80 mm (I .4094 in)
If the thickness of 4th gear is less than the service
limit, replace 4th gear with a new one.
If the thickness of 4th gear is within the service
limit, replace the 3rd/4th synchro hub with a new
one.
in)
mm
in)
4th GEAR
S I D E
in)