The IDEAL Engine

| September/October 1974

10275 Case Rd., Brooklyn, Mich. 49230

The accompanying photograph shows a 13 HP IDEAL engine which was built in Brantford, Ontario, Canada by the Goold Shapley & Muir Co., Ltd. It was used near Port Rowan, Ontario to pump water. It had set for many years on the bank of a stream and the man I purchased it from told me that it had been inundated by high water at least one time.

It had a 6-1/2 inch bore and a 13 inch stroke, is hit and miss firing, but does not hold the exhaust valve open during the off firing cycles. The flyball governor moves a cam follower in a direction parallel to the cam in such a way that it contacts the cam lobe and operates the fuel injection pump (shown in the picture) only during cycles when a power stroke is required. .

The fuel for the engine shown is gasoline, but the company also made similar engines which operated on natural gas. At the back stroke, the piston uncovers a port through which most of the exhaust gases pass. The remainder are expelled through the exhaust valve on the exhaust stroke. This is the exhaust arrangement described by John P. Wilcox in his article on the Callahan engine - GEM July-August 1966.

The small engine in the picture is a 1-1/2 HP Goold-Shapley & Muir which I use to crank the larger one.

Mr. Louis Forrest, Staples, Ontario has a 25 HP IDEAL engine which was built to run on natural gas, and weighs 7600 pounds. The 13 HP engine described above weighs 3200 pounds. Specifications of engines manufactured by Goold-Shapley & Muir Co., Ltd. are given in GEM - July-AugustĀ  in an article by Carleton M. Mull.