Preliminary work for valve tappet removal - Engine installed

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2005 Porsche 911, 2004 Porsche 911, 2003 Porsche 911, 2002 Porsche 911, and 2001 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect battery.
Remove the rear wheels.
Drain engine oil.
Remove the air cleaner assembly.

Fig 1: Identifying Air Cleaner Assembly Screw
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Fig 2: Identifying MAF Sensor Connector
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In vehicles with air conditioning, the following additional assembly operations must be performed:
Suck Pentosin fluid out of the reservoir until the level is just below the joint.

Fig 3: Sucking Pentosin Fluid Out Of Reservoir
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5.1 Turn bayonet lock in the direction indicated by the arrow and pull off the reservoir. Immediately seal the lower reservoir with a suitable plug (30 mm "PHI" ).

Bayonett lock open

Fig 4: Opening Bayonett Lock
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5.2 Remove drive belt. Mark belt travel direction with a colored pen. Slacken belt, turning the tensioning pulley (wrench size 24 mm) clockwise, hold still and simultaneously take the belt off the drive pulleys.

Fig 5: Removing Drive (Serpentine) Belt
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Fig 6: Turning Drive (Serpentine) Belt Tensioning Pulley Clockwise
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5.3 Undo front compressor fastening screws (2 ea.). Undo rear fastening screw between the intake pipes of cylinders 4 and 5. Disconnect the electrical plug connection.

Fig 7: Removing Rear Fastening Screws Between Intake Pipes Of Cylinders 4 And 5
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5.4 Lift the compressor out, set it down with the hoses connected and secure it against being dropped.
Remove exhaust manifold.

Fig 8: Removing Exhaust Manifold
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Remove rear muffler. Undo three hexagon nuts.

Fig 9: Removing Rear Muffler Nuts
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7.1 Undo clamping sleeve and remove rear muffler.

Fig 10: Removing Clamping Sleeve
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Remove holder for rear muffler.

Fig 11: Removing Holder For Rear Muffler
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8.1 Undo upper hexagon-head bolts using a flexible-head socket wrench (wrench size 13). Detach holder.

Fig 12: Removing Upper Hexagon-Head Bolts Using A Flexible-Head Socket Wrench
Courtesy of PORSCHE OF NORTH AMERICA, INC.
Remove shield of cylinder head cover.