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5. Hydraulics design and
composition
5.9 Comparison of the
all-plastic hydraulics versus
aluminum and cast iron
components
Until 1995, the clutch hydraulic release system was
composed of a master cylinder in aluminum and a
cast iron release cylinder connected to a hydraulic
hose made of steel and rubber. The weight of the
subassembly was about 1 kg (2.2 lbs.). The full
function (with bearing, fork, guiding tube) weighs
about 1.7 kg (3.75 lbs.).
From 1995, hydraulic clutch release systems
were revolutionized and with the widespread
use of plastic materials and of CSC, the weight of
the function and cost are considerably reduced
with less risks of corrosion. The total weight of
the CMC, the hydraulic hose and the CSC is about
0.4 kg.(0.88 lbs.).
Hydraulic components with aluminum or cast iron body