Porshe 911 (997). Manual - part 58

cover for dust protection
when fitting the engine

commercially
available tool

NR.165

Camshaft designation M97/01

Camshaft designation M97/01

Note

Between the start of series production in April 2004 and August 2004, the camshaft manufacturer changed the
lettering of the camshafts. In order to avoid a mixed installation, particular attention must be paid to the
designation of engines installed in standard vehicles during this period.

Position of camshaft designation

Position of lettering: -arrows-
Camshafts for cylinders 1 - 3:

Inlet camshaft: 997.105.211.01

• 

Exhaust camshaft: 996.105.262.05 3,8 EX 1-3

• 

Inlet camshaft (new): 997.105.047.00/02

• 

Exhaust camshaft (new): 996.105.059.01 3.8 EX 1-3

• 

Camshafts for cylinders 4 - 6:

Diagnostic system: reading out fault memory and activating systems

Tools

389

Inlet camshaft: 997.105.213.01

• 

Exhaust camshaft: 996.105.264.05 3,8 EX 4-6 (with aluminium plugs)

• 

Inlet camshaft (new): 997.105.048.00/02

• 

Exhaust camshaft (new): 996.105.060.01 3,8 EX 4-6 (with aluminium plugs)

• 

Aluminium plugs in exhaust camshaft 4 - 6

Allocation of inlet camshaft adjustment device

Allocation of inlet camshaft adjustment device

Camshaft adjustment device on inlet camshaft, cylinder bank 1 - 3

Designation of adjuster 1 - 3

Note

Side 1 - 3: the arrow should be attached anti-clockwise

• 

–  Designation, side 1 - 3:

Diagnostic system: reading out fault memory and activating systems

Camshaft designation M97/01

390

Part number, cylinder bank, manufacturer information, direction of rotation of engine (arrow),
production date.

• 

Camshaft adjustment device on inlet camshaft, cylinder bank 4 - 6

Designation of adjuster 4 -6

Note

Side 4 - 6: the arrow should be attached clockwise

• 

–  Designation, side 4 - 6:

Part number, cylinder bank, manufacturer information, direction of rotation of engine (arrow),
production date.

• 

Allocation of chain tensioners

Allocation of chain tensioners

Primary chain tensioner

Diagnostic system: reading out fault memory and activating systems

Allocation of inlet camshaft adjustment device

391

–  Primary chain tensioner on crankcase (oil filter area), identification: one ring

-arrow-

Chain tensioner, cylinders 1 - 3

–  Chain tensioner on cylinder head, cylinder bank 1 - 3, identification: two rings

-arrows-

Chain tensioner 4 - 6

–  Chain tensioner on cylinder head, cylinder bank 4 - 6, no

identification.

Preliminary work for removing camshafts

Preliminary work for removing camshafts

1. Remove engine → 100119 Removing and installing engine - chapter on

"removing".

2. Remove rear muffler → 263319 Removing and installing rear muffler - chapter on "removing".

Diagnostic system: reading out fault memory and activating systems

Allocation of chain tensioners

392