Pontiac Fiero 1988 Service Manual page 230

BRAKES 5-9
B R A K E PIPE R E P L A C E M E N T
(Figures 9 and 10)
Tool Required:
J29803LS.O. Flaring Tool
CAUTION: Newer use
copper tubing because
copper is subject to fatigue cracking and corro-
sion
which could
result
in brake
failure. Use
dou-
ble walled steel tubing.
I.S.O. Flare (Figure 9)
1.
2.
4.
Obtain the recommended tubing and steel fitting nuts
of the correct size. (Outside diameter of tubing is used
to specify size).
Cut tubing to length. Correct length may be deter-
mined by measuring old pipe using a string and
adding 3mm (1/8-inch) for each I.S.O. flare.
Make sure fittings are installed before starting flare.
Flare tubing ends using I.S.O. flaring tool, J 29803.
Follow instructions included in tool set.
Bend pipe assembly to match old pipe using a tubing
bender. Clearance of 19mm (.750-inch) must be
maintained to all moving or vibrating parts.
B R A K E HOSE INSPECTION
Inspect
The flexible hydraulic brake hoses, which transmit
hydraulic pressure from the steel brake lines on the body to
the calipers, should be inspected at least twice a year when
the car is on a lift for lubrication. The brake hoses should be
checked for road hazard damage, for cracks and chafing of
the outer cover and for leaks and blisters. A light and mirror
may be needed for an adequate inspection. If any of the
above conditions are observed on a brake hose it will be
necessary to replace it.
B R A K E HOSE R E P L A C E M E N T
Front
Brake Hose
4=4> Remove or Disconnect (Figure 9)
1. Wheel and tire. See Section 3E.
3.
Clean
Dirt and foreign material from hoses and fittings.
Bolt attaching the brake hose clip to the upper control
arm.
Brake pipe from hose.
• Use a backup wrench on hose fitting.
• Be careful not to bend bracket or pipe.
Spring clip from female fitting at bracket.
Hose from bracket.
Bolt, hose, and two copper gaskets from caliper.
• Discard two copper gaskets.
1 - HOSE - RH 5 - BRACKET RH OR LH
9
- FRONT CALIPER
13
- W A S H E R S
2 - PIPE - RH
6 - C O N T R O L A R M 10 - BOLT 14
- BOLT 4 N-m (38 bs. in.)
3 - HOSE -- LH 7 - CLIP (HOSE)
11 - SPRING CLIP 15 - COMBINATION V A L V E
4 -
PIPE - LH 8 - BOLT
12 - CLIP
J10009-5-P
Figure 9 Front Brake Pipes and Hoses