Leak Test - Porsche 996 TT Repair Manual

Plug 9710/1 for 911
Turbo (996)
Leak detection spray
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Leak test

1. Fit plugs in exhaust tailpipes on the rear muffler −see Figure− . Insert plugs into tailpipe outlets. To adapt
the diameter (seating surface of rubber seal), turn each handle clockwise or counter−clockwise until the
tailpipe outlets are air−tight by throwing the adapter handle through 90°.
Note
• Do not exceed the permissible pressure of 1 bar !
2. Connect pressure gauge to a valve and pressurize the exhaust system to 1 bar overpressure −see Figure− .
3. Wet individual disconnection points of the exhaust system (e.g. manifold flange, clamping sleeves) with
test spray to make any leaks visible. Repeat test procedure if necessary.
4. Remove pressure gauge and both
plugs.
996420, 996421, 996450, 996451, 996620, 996621, 996650, 996651
Tools
einordnung
Gr. 2.2; Workshop Equipment Manual ; order replacement seals from the
manufacturer (specification on the bottom of the plug)
e.g. test spray TPS674, Messrs. TEGA, Würzburg
636