Toothed Belt Drive - Volkswagen 4.2l V8 5V Service Training

Toothed belt drive

Both exhaust camshafts and the coolant pump are driven by the crankshaft in the toothed belt drive. The toothed
belt is tensioned via a belt tensioner and a hydraulic tensioning element.
Exhaust camshaft sprocket
cylinder bank 1
Hydraulic toothed belt tensioner
guide roller
toothed belt tensioner
When renewing or replacing the toothed belt, the crankshaft must be set to TDC cylinder No. 5. To
achieve this, the notch on the vibration damper must align with the mark on the toothed belt guard, and
the locating plates' two large bores must face each other inwards. ELSA provides information on the
detailed procedures for removing and installing the toothed belt.
Locating plates with bores
S341_091a
Crankshaft
Hydraulic
toothed belt
sprocket
S341_091b
S341_090
Exhaust camshaft sprocket
cylinder bank 2
Coolant pump
driving gear
Belt tensioner
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