Massey Ferguson digger ⛏ MF 50B ⛏ Perkins a4.236 engine sound

Hi, the video shows my recent struggles with leveling the land around the house under construction. You can hear the sound of the engine of the machine I used. Before I started construction, I bought an old Massey Ferguson MF 50B backhoe loader with a Perkins A4.236 engine. With its help, I did the digging for the foundations and then backfilling. The excavator, despite its age (year of manufacture probably 1977) performs bravely, and the results can be seen in the video. The drive in this backhoe loader is called Reverse-O-Matic by Funk. It is an automatic (torque converter) with four forward and four reverse gears.