For rigging it up to a Cornie you may want to chat to J_P - pretty sure thats how he uses his (three) beer engines :thumb:
I have one beer engine and basically it's set up like this :
King Keg with s30 valve in a serving fridge set at 12c
Wide guage (dunno what) line attached to standard drum tap, secured with hose clip
This then steps down via a reducer from Barley Bottom to Narrow Guage ( :? ) beerline
The Beerline then goes into a check valve
The Check Valve means that I can leave the pressurised KK tap open as the beer only gets as far as the CV
Out of the other side of the CV the beer line (wide guage) goes direct to the beer engine
As you pull the handle it creates a vacuum which opens the CV and allows beer to be fed through
I keep the KK topped up with C02 using a Widget World system.
I love beer through the engine :thumb:
I'll get some pics of how it's set up