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- Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18
- Porsche 95B.2 Macan Petrol 2.0L (245Bhp) 2019-21
Hydraulic Tappet & Inlet Cam Lever Assembly
Sold each – 8 required per car
The hydraulic tappet and cam lever assembly for the inlet
valve is a precision-engineered valvetrain component used in Porsche Macan
2.0-litre engines. Working together, the hydraulic tappet and cam lever convert
camshaft motion into controlled inlet valve operation while automatically
maintaining correct valve clearance using engine oil pressure.
Fits:
Diagram ref no 7
This assembly plays a vital role in ensuring smooth engine performance, quiet operation and efficient air intake—particularly important in turbocharged Porsche petrol engines.
What Does the Hydraulic Tappet & Inlet Cam Lever Assembly Do?
The camshaft acts on the cam lever, which in turn presses
against the hydraulic tappet to open the inlet valve at precisely the correct
time. The hydraulic tappet uses oil pressure to compensate for thermal
expansion and wear, ensuring:
- Accurate inlet valve timing and lift
- Smooth idle and throttle response
- Reduced valvetrain noise
- Consistent air intake for efficient combustion
This system allows the engine to operate efficiently across all load and speed conditions without the need for manual valve adjustment.
Why Do Hydraulic Tappet & Cam Lever Assemblies Fail?
These components operate under constant mechanical load,
high temperatures and reliance on clean engine oil. Common causes of
failure include:
- Oil contamination or sludge build-up
- Extended oil change intervals
- Wear to cam lever contact surfaces
- Internal tappet pressure loss
- Insufficient lubrication at cold start
Symptoms of wear or failure may include:
- Ticking or tapping noises from the cylinder head
- Rough idle or hesitation
- Reduced engine efficiency
- Accelerated camshaft or valve wear
Why Replace the Inlet Tappet & Cam Lever Assembly?
Replacing worn components helps restore:
- Quiet, refined engine operation
- Correct inlet valve timing Improved drivability and throttle response
- Protection against further valvetrain damage
Ignoring tappet or cam lever wear can lead to costly damage to the camshaft, valves or cylinder head, particularly on high-revving turbocharged engines.
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Click 'Zoom in' for large parts diagram.
Diagram ref no 4
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