Brake Caliper, Seals & Temperature
Because race brake calipers are sometimes subjected to very high
and unpredictable operating temperatures, they must be examined and
seals must be replaced on a regular basis to maintain efficiency
and safety. Seal life is governed by time at temperature which
should therefore be kept as low as possible by provision of
cooling airflow. For guidance only AP Racing offer the following
recommendations (temperatures measured on outside of caliper
adjacent to logo): - Calipers that regularly run at
up to 200°C - Re-seal every other event. -
Calipers that run intermittently from 200°C to 220°C abd above -
Re-seal as soon as possible. - Reduce "soak"
temperatures after the car has come to rest where possible (e.g. do
not leave foot on brake pedal when stationary with hot brakes) as
this can cause excessive caliper temperatures.