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Home >> Porsche >> 2016 >> Cayman GTS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 73 (15 - Engine - Cylinder Head, Valve Control) >> WM 156319 Removing And Installing Valve-Stem Seals On 4.8-Litre DFI Engines (Except Cayenne Tip, Cayenne Man, Cayenne Diesel, Cayenne GTS Tip "PORSCHE Design Edition 3") >> Preliminary Work >> Valve Dimensions

Valve Dimensions

WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
Dimension Intake valve (naturally aspirated and turbo engines) Exhaust valve - naturally aspirated engine Exhaust valve - turbo engine
Valve disc diameter 38.30 mm 33.00 mm 33.00 mm
Valve stem diameter 5.92 mm 5.92 mm 5.92 mm
Overall length (from valve disc to valve pressure area) 107.70 mm 108.20 mm 108.20 mm
Angle at valve seat area 45° 45° 45°
Weight 56.8 gr. 48.8 gr. 46.7 gr. (lighter than in naturally aspirated engine because of sodium filling)