It’s a rotary screw air compressor driven by a twin cylinder Lister diesel engine.
It does need a bit of a clean up, an oil and filter change. It works fine or does after the fuel tank was drained of old diesel, water and surprisingly a dead bird. A quick fuel bleed and away it went. It blew all the bits of chaff and stalk out of the combine grain deck and screens. A wonderful find.
A clean combine with a rebuilt differential brakes and gearbox, it’s all ready to have it’s header fitted. Header fitting is one of those ten minute jobs that takes an hour but since this snap was taken it is on and apart from new mirrors and a couple of ram pins it is ready to go harvesting.
Here are a few more photographs of the compressor. If anyone is interested I can let you know what most of the bits are.
It is gorgeous.