| Brake booster (vacuum) |
|
tandem/diameter |
8/9 Zoll |
|
|
| Brake booster transmission ratio (i) |
911 GT3 |
Factor |
3.5 |
|
|
| Brake booster transmission ratio (i) |
911 Turbo |
Factor |
5.5 |
|
|
| Brake disc diameter, front |
|
Diameter |
380 mm |
|
|
| Brake disc diameter, rear |
|
Diameter |
380 mm |
|
|
| Pad thickness front and rear |
|
Measured value |
ca. 12.0 mm |
|
|
| Pad thickness, front and rear (wear limit) |
|
Measured value |
2 mm |
|
|
| Brake disc thickness, new (front) |
|
Measured value |
34 mm |
|
|
| Brake disc thickness, new (rear) |
|
Measured value |
30 mm |
|
|
| Brake disc minimum thickness after machining, front |
Brake disc can only be reworked symmetrically, i.e. equally from both sides! |
Measured value |
32.6 mm |
|
|
| Brake disc minimum thickness after machining, rear |
Brake disc can only be reworked symmetrically, i.e. equally from both sides! |
Measured value |
28.6 mm |
|
|
| Brake disc wear limit, front |
|
Measured value |
32.0 mm |
|
|
| Brake disc wear limit, rear |
|
Measured value |
28.0 mm |
|
|
| Peak-to-valley surface roughness of brake disc after machining (max.) |
|
Measured value |
0.006 mm |
|
|
| Thickness tolerance of brake discs (max.) |
|
Measured value |
0.02 mm |
|
|
| Lateral runout of brake disc (max.) |
|
Measured value |
0.03 mm |
|
|
| Lateral runout of wheel hub (max.) |
|
Measured value |
0.03 mm |
|
|
| Lateral runout of brake disc when installed (max.) |
|
Measured value |
0.06 mm |
|
|
| Push-rod play |
Measured at brake pedal plate |
Measured value |
approx. 1 mm |
|
|
| Diameter of parking-brake drum, wear limit |
|
Diameter |
180 mm |
|
|
| Diameter of parking-brake drum, wear limit |
|
Diameter |
181 mm |
|
|
| Width of parking-brake shoe |
|
Measured value |
25 mm |
|
|
| Thickness of parking-brake pad |
|
Measured value |
4.5 mm |
|
|
| Thickness of parking-brake pad, wear limit |
|
Measured value |
2 mm |
|
|
| Brake booster diameter (vacuum) |
|
Tandem/diameter |
8/9 Zoll |
|
|
| Brake booster transmission ratio (i) |
911 GT3 |
Factor |
3.5 |
|
|
| Brake booster transmission ratio (i) |
911 Turbo |
Factor |
5.5 |
|
|
| Brake disc diameter, front |
|
Diameter |
410 mm |
|
|
| Brake disc diameter, rear |
|
Diameter |
390 mm |
|
|
| Pad thickness front and rear |
|
Measured value |
ca. 12.0 mm |
|
|
| Pad thickness, front and rear (wear limit) |
|
Measured value |
2 mm |
|
|
| Brake disc thickness, new (front) |
|
Measured value |
36 mm |
|
|
| Brake disc thickness, new (rear) |
|
Measured value |
32 mm |
|
|
| Wear limit of front and rear brake discs |
Measuring with VAS 6813 test equipment. Note measuring prerequisites. New values/wear values and three measuring points are lasered onto the brake disc hub. Wear value reached: Replace PCCB brake discs on each axle. |
Measured value |
XX/XX Read value on brake-disc hub |
|
|
| Thickness tolerance of brake discs (max.) |
|
Measured value |
0.02 mm |
|
|
| Lateral runout of brake disc (max.) |
|
Measured value |
0.03 mm |
|
|
| Lateral runout of wheel hub (max.) |
|
Measured value |
0.03 mm |
|
|
| Lateral runout of brake disc when installed (max.) |
|
Measured value |
0.06 mm |
|
|
| Push-rod play |
Measured at brake pedal plate |
Measured value |
approx. 1 mm |
|
|
| Diameter of parking-brake drum, wear limit |
|
Diameter |
180 mm |
|
|
| Diameter of parking-brake drum, wear limit |
|
Diameter |
181 mm |
|
|
| Width of parking-brake shoe |
|
Measured value |
25 mm |
|
|
| Thickness of parking-brake pad |
|
Measured value |
4.5 mm |
|
|
| Thickness of parking-brake pad, wear limit |
|
Measured value |
2 mm |
|
|