To the extreme right of the picture is the oil filler and governor housing, while the oil pump is located below it and slightly towards the middle of the picture. The circular housing with five screws just above the oil pump is the oil pressure indicator.
The timing and ancillary drive gears are all located in the housing at the right hand end of the engine, the drive end in most applications, while the flywheel and hand starting end is at the left hand side. When electric starting is fitted, the open flywheel is located at the other end of the engine, except where a clutch and gearbox are fitted, when an SAE bell housing is fitted to house the flywheel and provide a mounting for the clutch/gearbox.
The dipstick is located between the mounting feet, which were available in a range of heights and widths to suit various installations. Radiator cooling was available as standard, the radiator being mounted at the 'front' of the engine in all cases.