Exhaust System: Testing and Inspection

Check Exhaust System For Leaks.







Exhaust system leak test

CAUTION: The permissible maximum pressure for performing the leak test is 1 bar.

NOTE: The leak test must not be performed on a hot exhaust system as the rubber seals are only functional at temperatures below 200 degrees C.

Tools
Item 1 Plugs for the exhaust system leak test







Clamp setting : Rubber seal compressed










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 degrees.







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.







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.