Screw the "T40012" adapter into the threaded hole of the spark plug. Turn on the compressed air supply with an excess pressure of at least 6 bar. Use a mandrel to separate the tightly seated valve crackers "VAS 5161/3" and a plastic hammer.
For the inlet side: Screw in the fixture "VAS 5161/6" with a hanging fork "VAS 5161/5" into the middle thread of the guide plate for 2.0 l engines -VAS 5161/19V-. Insert the mounting cartridge "VAS 5161/8" into the guide plate for 2.0 l engines -VAS 5161/19V-. Connect the push-in fork "VAS 5161/2" to adaptation "VAS 5161/6".
For the exhaust side: Screw in the tool "VAS 5161/6" with a hanging fork "VAS 5161/5" into the external thread of the guide plate for 2.0 l engines -VAS 5161/19V-. Press on the mounting cartridge "VAS 5161/8" and simultaneously turn the knurled screw of the mounting chuck "VAS 5161/8" to the right until the ends enter the valve checks. Turn the knurled screw slightly back and forth, this will cause the valve pins to expand and be captured by the mounting chuck. Release the push fork "VAS 5161/2". Remove the mounting cartridge "VAS 5161/8".
Remove the valve stem seals using the puller "3364".
If, due to lack of space, it is not possible to use the valve stem seal puller "3364", press out the "arrow" pin with a punch and remove the attachment.
Install the lower part of the valve stem seal remover "3364" onto the valve stem seal. Insert punch "1" into the hole in the bottom of the puller. Place the mounting lever under the puller and remove the oil seal "arrow".
Installation
To avoid damaging the new valve stem seals "B," place the plastic sleeve "A" onto the valve stem. Lubricate the sealing lip of the valve stem seal "B" with oil, insert it into the pressing tool "3365," and carefully press it into the guide sleeve. Remove the plastic bushing "A". Insert the valve spring and valve spring retainer. Install the mounting and dismounting device "VAS 5161" as shown.
After removing the valve crackers from the mounting cartridge, they must first be inserted into the mounting fixture "VAS 5161/18". Press the mounting chuck "VAS 5161/8" on top of the mounting device and remove the valve crackers.
Press the mounting chuck "VAS 5161/8" push fork "VAS 5161/2", turn the knurled screw of the mounting chuck in all directions while pulling it upward. Release the push fork "VAS 5161/2" with the thumb screw pulled out. Remove the VAS 5161 mounting and dismounting tool. Install in reverse order.
[The original publication in its entirety is posted on the website Audimanual.ru]