18-07-2021, 10:23 PM
(This post was last modified: 18-07-2021, 10:24 PM by Tony Griffiths.)
Full details here: http://www.austinmemories.com/styled-81/index.html......
Yes, it's a dual-fuel engine. "....So using the Heavy 20 engine which could be ordered as either a petrol-only engine or as a dual petrol/paraffin version. The dual system was common practice for tractors, which meant they had two fuel tanks both connected to a two-way tap. When starting from cold you would use the petrol, when the engine had warmed up you could turn the tap so that it was now running on paraffin. The reason for this was the fact that there was no tax on paraffin. The engines were considered to be more powerful at 26.5 HP @ 1,000 RPM (petrol version) and also more refined than the Fordson, but did not have the reliability. When running on paraffin the power output was reduced to 23.7 HP @ 1,000 RPM. It was launched in 1919, with production building up slowly so that in the week ending 12th June 1920 sixty-six tractors had been produced.
Yes, it's a dual-fuel engine. "....So using the Heavy 20 engine which could be ordered as either a petrol-only engine or as a dual petrol/paraffin version. The dual system was common practice for tractors, which meant they had two fuel tanks both connected to a two-way tap. When starting from cold you would use the petrol, when the engine had warmed up you could turn the tap so that it was now running on paraffin. The reason for this was the fact that there was no tax on paraffin. The engines were considered to be more powerful at 26.5 HP @ 1,000 RPM (petrol version) and also more refined than the Fordson, but did not have the reliability. When running on paraffin the power output was reduced to 23.7 HP @ 1,000 RPM. It was launched in 1919, with production building up slowly so that in the week ending 12th June 1920 sixty-six tractors had been produced.