Cylinder Head Assembly: Testing and Inspection

Pressure-Testing Cylinder Head (Cylinder Head Removed):

Data: Test pressure with air under water
in bar gauge pressure 2





If cracks are suspected (internal loss of coolant), the cylinder head must be pressure-tested.

1 Screw pressure-testing plate onto the cleaned cylinder head.
2 Seal bores and connections
3 Connect compressed air hose and adjust corn pressed air to 2 bar.





4 Fasten cylinder head on suspension device and immerse into heated water (80 °C).
5 If air bubbles rise, determine source and mark.