Tools Required
| • | One 11 x 1.5 mm tube fitting nut |
| • | One 12 x 1.0 mm tube fitting nut |
| • | Two pieces of 4.75 mm (0.187 in) brake pipe, approximately
50 mm (1.969 in) long |
- Fabricate two plugs in order to plug the master cylinder outlet
ports. Use the following procedure:
| 1.2. | Install the nuts onto the flared tubes. |
| 1.3. | One at a time, place approximately 13 mm (0.51 in)
of the unflared tube end in a vise. |
| 1.4. | Compress the end of the tube with the vise in order to collapse
the tube. |
| 1.5. | Bend the tube to a 90 degree angle. |
| 1.6. | Remove the tube from the vise. |
| 1.7. | Put the tube back in the vise. Fold the tube end against itself
in order to form an air-tight seal. |
- Plug the master cylinder outlet ports with the fabricated plugs.
Notice: Do not overtighten vise, or damage to the master cylinder
will result.
- Place shop towels around the master cylinder in order to absorb the
bled fluid.
- Mount the master cylinder in a vise. Tilt the front end of the
master cylinder down slightly.
- Fill the master cylinder with clean brake fluid.
Important: As air bleeds from the brake master cylinder, resistance to primary
piston strokes will increase, not allowing a full stroke.
- Using a tool with a smooth, rounded end, stroke the primary piston about
25 mm (0.948 in) several times.
- Reposition the master cylinder in the vise. Tilt the master cylinder
slightly up.
- Stroke the primary piston several times.
- Reposition the brake master cylinder in the vise. Level the master
cylinder.
- Loosen the fabricated plugs one at a time.
- Push the primary piston into the master cylinder bore in order
to force the air out of the master cylinder.
Important: In order to prevent air from sucking back into the master cylinder,
tighten the fabricated plugs before allowing the primary piston to return
to its original position.
- Repeat the previous 6 steps until no air escapes past the plugs.
- Install the master cylinder into the vehicle. Refer to
Master Cylinder Replacement
