Special tools
| Item | Designation of tool | Explanation |
|---|---|---|
| A- see scheme 127 | Porsche System Tester ll 9588 | The fuel pumps are required for short-term activation during the delivery rate test. |
| B- see scheme 127 | Pressure gauge P 378a | For fuel pressure test. |
| C- see scheme 127 | Connection line P 9559 | Hose line for pressure gauge. Do not interchange with -F-. There is a sheetmetal clip in the connecting piece for the fuel gallery which opens the scavenging valve during the test procedure. see scheme 127 |
| D- see scheme 127 | Commercially available measuring cup with scale | Must hold at least 3 litres. |
| E- see scheme 127 | Measuring adapter P 9705 | Controls the test pressure when measuring. Must not be impinged with under/overpressure. |
| F- see scheme 127 | Connecting lead P 9705/1 | Hose line for delivery rate test. Must not be interchanged with -C-. There is no metal clip in the connecting piece for the fuel gallery. see scheme 127 |
| G- see scheme 127 | Commercially available stopwatch | A wrist watch can also be used to be able to time exactly 1 minute. |
- The battery voltage must not be < 12 volts.
- If an insufficient delivery rate is determined in the delivery rate test, the measurement on the second scavenging valve of the fuel gallery will be repeated.
- Fuel system parts must not get dirty.