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Home >> Porsche >> 2016 >> Cayman GTS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 247 (20 - Fuel Supply, Control -- 92A Cayenne) >> WM 200101 Checking Fuel System (High-Pressure Side) For Leaks (Cayenne S & Cayenne GTS) >> Tools And Materials

Tools And Materials

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Fig 1: Identifying Leak Test Tools
G09933194Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  1. The required pressure is set on the compressed gas bottle using the commercially available pressure gauge unit (pressure reducer). The commercially available compressed gas bottle must be filled only with approved leak-locating gases.
  2. Air-spring strut filling unit VAS 6231 WE 1282  with air-spring filling unit; the connection is positioned between the pressure reducer and the adapter. Perform the leak test using individual bursts of pressure.
  3. Adapter 9759  for screwing into the low-pressure fuel line for the high-pressure pump.
  4. Commercially available leak-locating spray for detecting gas leaks.
GAS SPECIFICATION

Leak-locating gas (test medium) Designation Composition/purity
Helium He (gaseous, compressed)
  • 4.6 (minimum quality)
  • 5.0, etc.

not balloon gas! 
  • 99.996 volume % (4.6) He
  • 99.999 volume % (5.0) He
Forming gas
  • Forming gas 5
  • 95% nitrogen N2 and 5% hydrogen H2
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