Installing Guide And TENSIONING Rails

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Information

The tightening specifications for the basic engine are stored centrally.

> Refer to 1X00IN Technical values in the appropriate service information.

> Refer to 2X001N Technical values in the appropriate service information.

> 1001IN TIGHTENING TORQUES, TIGHTENING SEQUENCES AND ASSEMBLY OVERVIEWS

Tightening torques and assembly instructions for other assemblies (e.g. chassis, electrics, transmission or body) or for peripheral engine equipment can be found in the corresponding documents.

Fit deflector rail --1- by fitting the fastening screws -5- .

Fig 1: Timing Chain And Sprockets Components Location

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Timing chain and sprockets

1	Double-chain camshaft drive
2	Camshaft sprocket
3	Screw, M12 Tighten fully after setting timing.
4	Deflector rail
5	Screw, M8 x 35
6	Camshaft-to-camshaft guide pad
A	Direction of travel

Fit the guide rail -3- . The small tensioning rail is locked on the guide rail with -6- . Slide the guide rail onto the threaded peg and move it into the correct installation position with respect to the fitted oil pump drive chain. Pull the locking pin (the tensioning rail becomes attached).

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Guide rail

Slide the tensioning rail onto the threaded peg. -4-

Fig 2: Timing Chain And Chain Guide Components Location

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Timing chain and chain guide

1	Threaded peg
2	Threaded peg
1	Guide rail
4	Tensioning rail
5	Chain tensioner with sealing ring
6	Pin (for locking the oil-pump tensioning rail)
A	Direction of travel

Fit top guide rails (guide pad) between the camshafts if you have not already done so -6- .

Fig 3: Timing Chain And Sprockets Components Location

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Timing chain and sprockets

1	Double-chain camshaft drive
2	Camshaft sprocket
3	Screw, M12 Tighten fully after setting timing.
4	Deflector rail
5	Screw, M8 x 35
6	Camshaft-to-camshaft guide pad
A	Direction of travel