WESTERN GAS ENGINE

An Early 7 HP Western Gets a Deserving Restoration


| February/March 2002


The Western Gas Engine Company of Los Angeles, Calif., was formed in 1905 from what was previously named the Western Iron Works. This original company had roots going back to 1887, and as early as 1900 the company introduced the reversible-style gas engine model. This model was also referred to in the literature as an eccentric model. It apparently had no timing gears, nor did it have any semblance of a governor or timing devices for ignition and valve opening. How it actually worked is somewhat of a mystery, as no known examples or detailed descriptions are available.

In 1905 the geared model was introduced. The single-cylinder, early-style 1905 engines were built in sizes ranging from 7 HP to 100 HP. The hoist models ranged from 7 HP to 60 HP1, and all of them were of hit-and-miss design. This design was considered an obvious improvement and incorporated a timing gear and an eccentric/cam for controlling ignition timing and exhaust/intake valve operation. The design also utilized a unique, combination fuel pump/water pump that operated off the eccentric. The valves were contained in an external valve box and both were mechanically operated.

The mixer arrangement was similar to that used on the Charter engine, and the design for the water injection technique was patented by Western in 1906.2 The primary benefit of this design was its claim of providing smoother and more efficient engine operation when using kerosene as a fuel. It's interesting to note here that an assumption might be made concerning Western and Charter and possible sharing of designs, as both companies' larger engines shared many similar design features.

Basket Case 7 HP

In April 2001, I purchased a basket case 7 HP Western Gas Engine from Don Meakin of Arizona. A 1905 model, most of the serial numbers on the engine are 678, while the timing gear and governor parts carry serial number 407. At the time Western followed a practice similar to that of early steam engines, in that most parts built for an engine were not mass produced, nor were they generally inter-changeable. Each engine was built to operate as a final assembly, and many of the parts were 'gunsmithed' to fit. This meant stamping serial numbers on many of the individual parts to prevent any mix up during assembly or repair, as the engines continued to be maintained by the factory for years after they were purchased.

The name plate on Mike Tyler's 7 HP Western, showing serial number 678. Many pieces on this engine actually come from an earlier unit bearing serial number 407.

Many of these engines were returned to the factory for repair, re-boring, etc., and factory repair cards documenting repairs and when they were carried out are still available for many Western engines. Engine number 678's card was lost, but the card for number 407 indicates that engine was originally sold as a hoist engine on Dec. 4, 1906, to Con. Union Grand Copper Co. of Wickenburg, Ariz. The last entry on the card for engine 407 indicates it being owned by Y.M. Martin of Aguila, Ariz., with repair work performed on April 25, 1921.3 It is theorized that both serial number 678 and 407 were hoist engines, and further that number 678 suffered some type of accident that damaged the governor and timing gear parts. Engine number 678 was, evidently, repaired by utilizing parts from 407. Engine number 407 was probably discarded as being worn out.






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