TQC Leak Test Systems
Other TQC Services
Contact Information

TQC Ltd, Hooton Street,
Carlton Road, Nottingham,
Notts. NG3 2NJ,

Tel: +44 (0) 115 9503561
Fax: +44 (0) 115 9484642

Leak Testing Sector Overview from TQC

Leak Testing of Engine Blocks

TQC have produced a number of leak test systems for a variety of automotive parts, this includes equipment for the testing of engine block castings.

The machines supplied to date include manual and automated loading / unloading, multi cavity leak testing functions and system diagnostics.

TQC incorporates standard concetps and customises the equipment to suit the components and test parameters. Examples of components tested include the Vauxhall V6 engine, Rover K Series, Jaguar, Scania etc.

Features, Tests & Functions

  • Ferrous and non ferrous castings
  • Machined and 'As Cast' conditions
  • Main cavity, High Pressure Oil & Water Cavity leak tests
  • Interstream leak testing
  • Integrated water submersal for leak area location
  • Integrated flow & blockage testing
  • Automatic core and ball plugging
  • Multi-channel leak test unit allows up to 5 cavities to be tested simultaneously
  • Manual loading and unloading
  • Conveyor transfer
  • Integrated robot cells
  • Secondary machining operations
  • Data logging of results with serial number pass marking for traceability

Cast Iron - fully automated V8 cylinder block - automatic linear transfer

Interchangeable tooling



Cast Iron - 'As Cast' 3 cylinder engine block. Fully automatic transfer.

Aluminium fully machined 6 cylinder engine block with water dunk. Manual load / unload with gripper 'lift assist'

Aluminium - 'As Cast'. 4 cylinder enginer block with rotary water dunk. Manual load / unload.

Typical Leak Rates and Test Pressures for no-fluid leakage:

Oil Circuits 50mm3/sec @ 0.3 bar 3cc / min
Water Circuits 200mm3/sec @ 1 bar 12cc / min
Interstream 140mm3/sec @ 0.7 bar differential 8.4cc/min

If you have a current project that you are already looking at, or you are considering improvements to your production in the near future, call us and we will be happy to offer our professional advice & visit you at your site.

Air Decay Leak Testing :: Helium Leak Testing :: Pressure Testing :: Fixture & Seal Design Specialists