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TAG : Andrew Mackey

Restoring ‘TheTwin’ Jacobsen Engine

The cleaned-up lower crank case with center split bearing in place.In part one, collector Andrew Mackey described the roots behind his love of Jacobsen engines. After a 20-year search, Andrew was the owner of not one, but two, Jacobsen Twins. While evaluating the near-running engine’s ...

Jacobsen Engine ‘The Twin’ Found at Last

Jacobsen “4-Acre” reel type mower with 24-inch cut and 1-1/2hp engine. Aptly named, the “4-Acre” meant the user was able to mow four acres in an 8-hour day.This story actually starts 56 years ago, when I was 8 years old. My parents took us kids to many antique shops all over the East ...

Response to Thread Standards Concerns

Regular contributor Andrew Mackey responds to John Burgoyne (53/3/1: Thread standards) in the April/May 2018 Gas Engine Magazine. Andrew writes:The studs and nuts on the Oil city-south Penn half-breed engine restored by Andrew Mackey. As with much old equipment, they were non-standard. Photo by ...

Gas Engine Magazine

Preserving the History of Internal Combustion Engines