These checks will help locate some master cylinder malfunctions.
• | Check for a cracked master cylinder casting or brake fluid around
the master cylinder. Leaks are indicated only if there is at least a drop
of fluid. A damp condition is not abnormal. |
• | Check for a binding pedal linkage. |
• | Disassemble the master cylinder and check for swollen or stretched
piston seal(s). If swollen seals are found, substandard or contaminated brake
fluid should be suspected. If contaminated, all components should be disassembled
and cleaned. |
All rubber components should be replaced and brake pipes should be flushed.