If a clutch fails to disengage fully when
the pedal is pressed, the problem may be the clutch itself. In a hydraulic
clutch, however, the problem may lie in the master or slave hydraulic
cylinders.stefa auto oil seals SALABLE
PRODUCT.
Worn or ill-fitting seals may allow hydraulic fluid to leak past the piston in either cylinder, so that the slave piston does not travel far enough to disengage the clutch.Any sort of leak will have the same effect and air might get into the system.
auto oil seals If the system has air in it, the action of the pedal may feel ‘spongy’, whereas with other faults the pedal may feel normal, although the clutch does not work properly.If seals are worn or damaged, fit a service kit which includes new seals.auto oil sealsThe cylinder bores may have worn or become rough — hydraulic fluid is hygroscopic, absorbing moisture from the atmosphere, which can cause corrosion in the bores.In this case, fitting a new cylinder is the only remedy. Trying to smooth the bore with abrasives only makes it worse, and the roughness quickly wears out new seals.Lack of fluid is easily fixed by topping up the master-cylinder reservoir, but you still have to find out why the fluid level was low. There should be virtually no loss in normal use.stefa auto oil seals SALABLE PRODUCT.
Cars fitted with modern automatic gearboxes must not be towed for a distance of more than about 15 miles. The towing speed must also be kept under 30 mph (50 kph).The reason for these restrictions is that the internal fluid pump of the gearbox, being driven by the engine, does not work when the engine is not running.When the car is being towed, therefore, the box is not lubricated or cooled.
If the car has to be towed a greater distance than 15 miles — in the event of a breakdown, for example — raise the driven wheels or disconnect the propeller shaft or drive shafts (See How to check U-Joints).
auto oil seals If the car is being towed by a garage or breakdown recovery service, make sure they are aware that the car has automatic transmission so that they do not tow it too far or too fast.stefa auto oil seals SALABLE PRODUCT.
Worn or ill-fitting seals may allow hydraulic fluid to leak past the piston in either cylinder, so that the slave piston does not travel far enough to disengage the clutch.Any sort of leak will have the same effect and air might get into the system.
auto oil seals If the system has air in it, the action of the pedal may feel ‘spongy’, whereas with other faults the pedal may feel normal, although the clutch does not work properly.If seals are worn or damaged, fit a service kit which includes new seals.auto oil sealsThe cylinder bores may have worn or become rough — hydraulic fluid is hygroscopic, absorbing moisture from the atmosphere, which can cause corrosion in the bores.In this case, fitting a new cylinder is the only remedy. Trying to smooth the bore with abrasives only makes it worse, and the roughness quickly wears out new seals.Lack of fluid is easily fixed by topping up the master-cylinder reservoir, but you still have to find out why the fluid level was low. There should be virtually no loss in normal use.stefa auto oil seals SALABLE PRODUCT.
Cars fitted with modern automatic gearboxes must not be towed for a distance of more than about 15 miles. The towing speed must also be kept under 30 mph (50 kph).The reason for these restrictions is that the internal fluid pump of the gearbox, being driven by the engine, does not work when the engine is not running.When the car is being towed, therefore, the box is not lubricated or cooled.
If the car has to be towed a greater distance than 15 miles — in the event of a breakdown, for example — raise the driven wheels or disconnect the propeller shaft or drive shafts (See How to check U-Joints).
auto oil seals If the car is being towed by a garage or breakdown recovery service, make sure they are aware that the car has automatic transmission so that they do not tow it too far or too fast.stefa auto oil seals SALABLE PRODUCT.
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