Leak Testing Case Studies: V6 Engine Leak Test Facility

Client: Multi-National Tier 1 Automotive Manufacturer

Part: Automotive V6 Engine

Machine supplied: Fully automatic short engine final leak test machine

Overview: This system was designed and manufactured in order to give the customer the ability to 100% leak test engines within their production environment. TQC developed this system alongside the client to allow them to leak test the water jacket and oil gallery within a fully assembled engine. In addition, a rework system was supplied for leak location using tracer gas.
Download details of this system as a PDF

  • Simultaneous leak testing of water and oil systems
  • Internal leak testing of oil and water cavities
  • Automatic sealing of assembled engines
  • Nolek TS600 leak test instruments
  • Palletised conveyor system with individual engine bar codes
  • Tracer gas charging and purging console for use with helium or hydrogen.
  • Quick connect sealing plug.
  • Hand held sniffer probe for leak area location.
  • Automatic reject conveyor loop with manual leak location station.
  • Manual leak test location rectification fixturing
  • Office-based data management computer (DMC) connected to the leak test system via a local area network
  • The DMC allows selection and viewing of historical test results and the ability to edit test limits. A facility is provided to export data for processing by other spreadsheet and database software.
  • Programmable leak rates and test pressures to suit different engine variants

Typical leak limits are:

Water system: 10cc/min @ 1bar
Oil system: 25cc/min @ 0.3bar
Internal water to oil 10cc/min @ 0.7bar differential


One 2.5 or 3.0 litre engine every 50 seconds.


To find out more about how we can help you with your leak testing requirements:

We build all machines in-house, applying our 25+ years experience in specialised test and automated handling machines experience to the engineering projects we undertake. We offer customer support, backup and service call-out for all projects, whatever the size.

Get in touch with us to discuss your requirements and we will be happy to offer our professional advice and visit you at your site.

TQC Ltd, Hooton Street, Carlton Road, Nottingham, NG3 2NJ, United Kingdom
Tel: +44 (0)115 9503561   |   Fax: +44 (0)115 9484642   |   E-mail: sales@tqc.co.ukSGS