Front Brake Disc Lnspection; Runout; Thickness And Parallelism - Honda EP3 Service Manual

Front Brake Disc lnspection
Runout
1. Raise the front of the vehicle, and support it with
safety stands in the proper location (see page 1-8).
Remove the front wheels.
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 1 ) .
3. Inspect the disc surface for damage and cracks.
Clean the disc thoroughly, and remove all rust
4. lnstall suita ble flat washers (A) andwheel nuts,and
tighten the nuts to the specified torque to hold the
brake disc securely against the hub.
Set up the dial gauge against the brake disc as
shown, and measure the runout at 10 mm (0 4 in.)
from the outer edge of the disc.
Brake Disc Runout:
Service Limit: 0.10 mm (0.00tt in.l
lf the disc is beyond the service limit, refinish the
brake disc.
Max. Retinish Limit: 19.0 mm (0.75 in.)
NOTE:
. 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
r e f i n i s h i n g , r e p l a c e i t ( s e e p a g e 1 8 - 1 1 ) .
. 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 . ) .
Thickness and Parallelism
1. Raise the front of the vehicle, and support it with
safety stands in the proper location (see page 1-8).
Remove the front wheels.
2. Remove the brake pads (see page 19-11).
3. Using a micrometer, measure disc thickness at
eight points, approximately 45" apart and 10 mm
{0.4 in.) in from the outer edge of the disc.
Brake Oisc Thickness:
Standard: 20.9 21.8 mm {0.82-0.86 in.}
Max. Refinishing Limit:
19.0 mm 10.75 in.)
Brake Disc Parallelism:
0.015 mm 10.0(X)6 in.)
max.
NOTE: This is the maximum allowable difference
between the thickness measurements
10 mm lo.it in.l
l f t h e s m a l l e s t m e a s u r e m e n t i s l e s s t h a n t h e m a x .
refinishing limit, replace the brake disc (see page
1 8 - 1 1 ) .
lf the disc is beyond the service limit for parallelism,
refinish the brake disc with an on-car brake lathe.
The Kwik-Lathe produced by Kwik-way
Manufacturing Co. and the
"Front Brake Disc
Lathe" offered by Snap-on Tools Co. are approved
for this operation.
4 .
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1 9 - 1 3