Is the 1.4 TSI an Interference Engine - Volkswagen Jetta Forum
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Old 06-16-2019, 10:57 AM   #1
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Default Is the 1.4 TSI an Interference Engine

If the timing belt in my 2017 Jetta 1.4 TSI engine were to break, would it mean my engine destructing
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Old 06-17-2019, 03:56 AM   #2
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Yes, they are interference motors.

The timing chain was deleted and replaced with timing belt designed for entire
engine lifespan (that is VW’s official statement).

IF the belt breaks at 70,000 miles, then that was the LIFESPAN. They
throw that term around way to loosely. IF the engine throws a rod at 50k,
well that's the engine's lifespan...
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Old 06-20-2019, 07:54 PM   #3
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Our 2008 is non-interference; why did they change?
BTW: 85k miles.
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Old 06-20-2019, 10:25 PM   #4
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New for 2011, EA211:

They went with an all New lightweight aluminum construction, an integrated (into the
head) exhaust manifold, and a toothed-belt drive for its double overhead camshaft
valvetrain that incorporates variable intake and exhaust timing. The only aspect to be
carried over from the EA111 engine that preceded it is the 82 mm cylinder spacing.
The cylinder bore was decreased by 2 mm (to 74.5mm) while the stroke was increased
to 80mm, a change which helps compactness, increases torque, and is ideal for adding
boost.
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