Allan Brothers Oil Engine on a Return to Glory

Scottish-built Allan Brothers oil engine settles in Arizona for complete restoration.

Cooling tank
The Allan Brothers engine's cooling tank. Tan-colored air tanks can be seen on each side of the cooling tank; the air compressor is shown at front right. Air pressure of 80-90 psi is sent through a ball and check valve to the cylinder and the engine usually starts on the next revolution.
Photo By Wayne Peters