So for the 3rd time the bus has now failed for it's brake imbalance, so it's really not a question of adjusting them, and in fact a closer look at the hubs indicates that something is leaking and contaminating the inside.
This could either be axle oil from the differential.
-The drive shaft sits in a hollow tube, the axle, which is full of oil, and at the end of the tube are seals that are designed to let the drive shaft spin, but hold in the oil. These rubber seals perish with time and age, and then leak oil out into the brake drums contaminating the them and preventing them from working properly.
Alternatively it's the brake fluid which is leaking out from the callipers and contaminating the shoe. Either way, the shoes will have to be relined or replaced as once they are contaminated there isn't really much you can do to resuscitate them.
Either way they have to be opened up and then the right parts replaced. Next MOT retest on Friday.
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 The guys at Good Energy have been really supportive and excited about the expedition, so much so that they have made a contribution which allows me to keep the blog regularly updated during the expedition, so they and everyone else can follow the journey. Good Energy supplies 100% renewable electricity sourced from wind, water, sun and sustainable biomass. CO2 from coal-fired electricity generation is one of the largest contributors to greenhouse gas emissions in the world. Switch your electricity supply to Good Energy using this link and not only will you be supporting the pioneering community of independent green generators, but for every sign up they get they’ll make another donation to help get the bus around the world. It helps you cut your personal CO2 emissions, helps them grow a great business, and helps me get round the world. |
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