Engine removal and installation, ventilation, cran,  M110,  Uncategorized

Pressure testing cylinder head



01—420 Pressure testing cylinder head




Pressure test with air under water in bar gauge pressure


Special tools


Pressure testing plate
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110 589 00 25 00


Suspension fixture
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110 589 34 63 00


Conventional tool


Electrically heated sink
e.g. made by Otto Diirr, D-7123 Sachsenheim-Ochsenbach


Pressure testing
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If the loss of water indicates cracks, the cylinder head must be pressure tested.
1    Bolt pressure testing plate to a cleaned cylinder head.
2   Plug holes and connections.
3   Connect compressed air hose (1) and regulate compressed air to 2 bar gauge pressure.


01.2-420/1 F3




4   Attach cylinder head to suspension device and lower into heated water (80°C).
5   Find location of leaks, if air bubbles rise.
m110 - 0064-1.jpg


01.2-420/2 F3