Hello all,
Does a dead anti-sink sphere make any noticable difference on a Xantia ?
Mark
dead anti sink sphere
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The anti-sink sphere doesn't do anything noticable most of the time.
It provides a reservoir of pressure to the rear brakes so that braking doestn't make the back of the car sink as quickly as it would if it were not there. As for suspension and ride it makes no difference, all it does really is means that the car won't sink when the engine is turned off, it can provide pressure to keep the anti-sink valves closed when the rest of the system is completely de-pressurised.
It provides a reservoir of pressure to the rear brakes so that braking doestn't make the back of the car sink as quickly as it would if it were not there. As for suspension and ride it makes no difference, all it does really is means that the car won't sink when the engine is turned off, it can provide pressure to keep the anti-sink valves closed when the rest of the system is completely de-pressurised.
Normally, the rear brakes work with the pressure of the rear suspension cylinders. When the engine is turned off and the main pressure falls below suspension pressure, the anti-sink-valve closes. As the brake pressure is taken before the anti-sink-valve, it's necessary to have a reservoir of pressure in case of a closed valve. That's what the additional sphere is installed for.