Front Brake Disc Inspection; Runout; Thickness And Parallelism - Honda S2000 Service Manual

Conventional Brake Components
Front Brake Disc Inspection
Runout
1. Loosen the front wheel nuts slightly, then raise the
vehicle, and support it with safety stands in the
proper locations {see page 1- 13). Remove the front
w n e e t s .
2 . R e m o v e t h e b r a k e p a d s ( s e e p a g e 1 9 - 1 2 ) .
3. Inspect the disc surface for damage and cracks.
Clean the disc thoroughly, and remove all rust.
4. Use wheel nuts and suitable flat washers (A) to
h o l d t h e d i s c s e c u r e l y a g a i n s t t h e h u b . t h e n m o u n t
a dial indicator as shown, and measure the runout
a t 1 0 m m { 0 . 4 i n . ) f r o m t h e o u t e r e d g e o f t h e d i s c ,
Brake Disc Runout:
Service Limit: 0.10 mm (0.004 in.)
5 .
108 N m (11 kgf m, 79.6, lbf ft)
lf the disc is beyond the service limit, refinish the
brake disc.
Max. Refinish Limit: 23.0 mm (0.91 in.l
N O T E ;
. l f t h e b r a k e d i s c i s b e y o n d t h e s e r v i c e l i m i t f o r
refinishing, replace it (see step 7 on page 18-12).
. A new disc should be refinished if its runout is
g r e a t e r t h a n 0 . 1 0 m m ( 0 . 0 0 4 i n . ) .
1 9 - 1 4
Thickness and Parallelism
1. Loosen the front wheel nuts slightly, then raise the
vehicle, and support it with safety stands in the
proper locations (see page 1-13). Remove the front
w n e e t s .
2 . R e m o v e t h e b r a k e p a d s { s e e p a g e 1 9 - 1 2 ) .
3. Using a micrometer, measure disc thickness at
eight points, approximately 45" apart and 10 mm
(0.4 ln.) in from the outer edge of the disc. Replace
the brake disc if the smallest measurement is less
t h a n t h e m a x . r e f i n i s h i n g l i m i t .
Brake Disc Thickness:
Standard: 24.9-25.1mm (0.98 0.99 in.)
Max. Refinishing Limit:23.0 mm {0.91 in.)
Brake Disc Parallelism: 0.015 mm {0.0006 in.} max.
NOTE:This is the maximum allowable difference
between the thickness measurements.
l f t h e d i s c i s b e y o n d t h e s e r v i c e l i m i t f o r p a r a l l e l i s m ,
refinish the brake disc.
NOTE; lf the brake disc is beyond the service limit
for refinishing, replace it (see step 1 on page 18-'12).
4 .