Porshe 911 (997). Manual - part 64

For checking with the adjusting gauge, the timing adjustment must be correct.

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3. To check the camshaft adjustment, insert adjusting gauge 9686 for camshaft into the camshaft slots

(pulley side) (inscription on gauge pointing towards cylinder head cover). If the gauge cannot be
inserted, rotate the crankshaft a further 360° and secure it again.

4. Unscrew two M6 x 12 hexagon-head bolts on the coolant pipe (heating) at cylinder side 4 - 6.

Primary chain tensioner

5. Remove primary chain tensioner (hexagon socket a/f 32).

Chain tensioner, cylinder 1-3

6. Remove chain tensioner, cylinder bank 1 - 3 (hexagon socket a/f 32).

Collar nut for bearing cover

Note

To make it easier to remove the bearing cover, spray the sealing surface with anti-rust agent.

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7. Unscrew M8 hexagon collar nut on the bearing cover of the intermediate shaft with special tool socket

wrench 9110

, while at the same time countering the slotted threaded pin on the intermediate shaft with a

Diagnostic system: reading out fault memory and activating systems

Removing bearing cover for intermediate shaft

413

screwdriver.

8. Unscrew the three M6 x 20 hexagon-head bolts (coated) on the intermediate-shaft flange. Replace screws

during installation and clean thread.

Puller on bearing cover: View from intermediate shaft

Note

Remove bearing cover using special tool puller 9673. If this is not available, lever the bearing cover
out carefully with two screwdrivers so as not to damage the sealing surfaces. Turning several times to
the left and right loosens the bearing cover.

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After removing the bearing cover, do not press the threaded bolts of the intermediate shaft.

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9. Position special tool puller 9673 at the bearing cover grooves and secure by turning the locking lever

anti-clockwise.

Removing bearing cover

10. Pull the slide hammer on the puller a number of times against the stop nuts while countering the

tool at the same time with the other hand.

Diagnostic system: reading out fault memory and activating systems

Removing bearing cover for intermediate shaft

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Levering out bearing cover

11. If the puller is not available, lever the bearing cover out carefully using two screwdrivers (or

angle screwdrivers), for example. Move the bearing cover frequently to the left and right to make
the levering easier. Do not damage the sealing surfaces.

Installing bearing cover for intermediate shaft

Installing bearing cover for intermediate shaft

Note

Clean working area of bore for bearing cover and crankcase thoroughly using acetone or solvent
naphtha.

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Note

Replace bearing cover or sealing ring for bearing cover → 152355 Replacing sealing ring for
intermediate shaft.

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1. Before installing the new bearing cover, check the fitted bore (axial attachment surface, bore chamfers) on

the crankcase for sharp edges and burrs. They should be removed with an oilstone or a polishing cloth.
Remove any existing residue and clean the bore with a clean cloth soaked in solvent naphtha or acetone.

2. Grease fitted bore in crankcase and new bearing cover (with new sealing ring) with special grease

Optimoly MP3 (available from Porsche Parts Service) and place bearing cover in position.

Note

Replace collar nut M8 x 1 and coated M6 screws for bearing cover.

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3. Position three new, coated M6 x 20 screws on the crankcase and pull in the bearing cover by

screwing in the screws uniformly. Tighten screws → Tightening torque: 7.5 ftlb. .

Diagnostic system: reading out fault memory and activating systems

 Installing bearing cover for intermediate shaft

415

Collar nut for bearing cover

4. Position new M8 x 1 collar nut on the threaded pin of the intermediate shaft. Then tighten the nut using

special tool socket wrench 9110. At the same time, counter with a screwdriver in the slotted threaded pin
of the intermediate shaft. → Tightening torque: 9 ftlb. +0.5 ftlb.

Primary chain tensioner

5. Insert primary chain tensioner with new aluminium sealing ring (hexagon a/f 32) and tighten to the

specified torque. → Tightening torque: 59 ftlb.

Chain tensioner, cylinder 1-3

6. Insert chain tensioner for cylinder 1 - 3 with new aluminium sealing ring (hexagon a/f 32) and

tighten to the specified torque. → Tightening torque: 59 ftlb.

7. Fasten coolant pipe (heating), cylinder side 4 - 6, with two M6 x 12 hexagon-head bolts. → Tightening

torque: 7.5 ftlb.

8. Fit two new closure caps on cylinder head cover.

9. Pull fixing pin out of the crankshaft belt pulley.

Diagnostic system: reading out fault memory and activating systems

Installing bearing cover for intermediate shaft

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