Leak down test

Last task of the prep work for the annual .. the LAA now want a mass of captured data and settings and measurements..

I’ve not captured the engine leak down test before but The Light Aircraft Company kindly leant me their leakdown test kit

We have a compressor at home and so read up about getting the prop to Top Dead Centre TDC, removing each rocker cover so we can see when the valves were compressing (opening) and lifting (closing) and both closed

Connecting up the pressure test .. introducing it to the exhaust cylinder .. having removed the spark plug

Pressure released to 80 and check leak down in 2nd gunge.. 70 or more on all 4 cylinders .. Great … 👍