Cayenne GTS (9PA) V8-4.8L (2008)
Closed puller
8. Remove valve-stem seal by activating the negative (slide) hammer. -arrow-. Repeat procedure for valves on pressurized cylinder (reposition tool
accordingly).
Removing valve-stem seal
Installing valve-stem seal
Installing valve-stem seals
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Position the pistons of the relevant cylinder at the bottom dead center.
Each piston is pressed downwards as pressure builds up in the cylinder.
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Before switching to another cylinder, the cylinder must be positioned at the bottom dead center and supplied with compressed air (see above).
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When required, all valve-stem seals on both cylinder rows must be replaced.
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Protective caps must be ordered as separate spare parts. They are reusable. They are used to protect the valve-stem seal so that it is not damaged at the
valve stem end.
1. Prepare valve-stem seal -1-, protective cap -3- and assembly driver 9606/1 -2-.