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VWUSA.COM VW MK5 MKV New Jetta New Model ... - VAGLinks.com

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Crankshaft Seal Flange with Integrated<br />

Engine Speed Sensor Wheel<br />

The crankshaft seal flange with integrated<br />

engine speed sensor wheel is a new<br />

feature. The crankshaft seal flange seals the<br />

cylinder block on the flywheel end. The seal<br />

is made of heat-resistant and nonwearing<br />

polytetrafluoroethylene (PTFE) plastic.<br />

The engine speed sensor is a Hall effect<br />

sensor mounted in the crankshaft seal<br />

housing and consists of a steel ring<br />

mounted in rubber. This rubber material<br />

contains embedded magnetized metal<br />

chips that have an alternate north and south<br />

polarity with a large north pole to serve as a<br />

reference for the engine speed sensor. The<br />

sensor wheel is precisely press-fit into the<br />

crankshaft flange.<br />

Engine Speed<br />

Sensor<br />

North Pole<br />

South Pole<br />

Crankshaft<br />

Seal Flange<br />

Engine Speed<br />

Sensor Wheel<br />

Engines<br />

S318_051<br />

S318_049<br />

33

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