Cayenne Turbo (9PA) V8-4.8L Turbo (2008)
Piston classification
1
- Inspection stamp (supplier)
2
- Arrow marking in direction of travel
3
- Porsche short numeric code without main or middle number
4
- Cylinder bank identification
5
- Marking area for weight group
6
- Marking area for dimension group
7
- Barcode 128 (short numeric code (without main group) and weight group)
8
- Direction of travel arrow
9
- Short numeric code (supplier)
Crankshaft
1
- Crankshaft
2
- Straight pin, 6 x 20
3
- Spring, 5 x 6.5
4
- Thrust washer (grooves facing out)
5
- Main bearing shell, upper
6
- Main bearing shell, lower
7
- Shaft sealing ring - Do not touch sealing ring lip! Clean crankshaft flange and oil lightly
8
- View of crankshaft flange
9
- Crankshaft bearing classification (example: YYYYY-BBBB; 5 main shaft bearings with yellow marking, 4 double (8) connecting rod
bearings with blue marking) - For numbering, see A
A - Direction of travel (main bearing 1 is the first in direction of travel against output)
Identification of pistons
Information
The piston is identified as a spare part by the following characteristics: one dimensional group X, Naturally aspirated or Turbo, cylinder bank 1 to 4 or
5 to 8.
The piston is installed as standard in two additional weight tolerances: + and -.
This information is all engraved on the piston crown. To identify the piston uniquely, the piston must be cleaned carefully (brass brush, ultrasound