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Gas Engine Magazine

Gas Engine Magazine August - September 2016

Gas Engine Magazine is a bimonthly publication dedicated to the hobby of collecting antique stationary gas engines. Since 1966, collectors and restorers have turned to Gas Engine Magazine for information about specific models and companies, detailed restorations and event coverage, and to connect with other enthusiasts.

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Pays:
United States
Langue:
English
Éditeur:
Ogden Publications, Inc.
Fréquence:
Bimonthly
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2 min.
learning by accident

I learn a lot by accident, although I think serendipity is a better word, the learning often the result of a chain of events sparked by a simple question or observation. This issue’s Patent Page, an examination of a unique single valve – or monovalve – 4-stroke diesel engine, underscores this thought. Prior to last issue, I was unaware of the American Diesel Engine Co. and the 2- and 4-cylinder monovalve diesel engines it produced in the 1930s, but then reader Brian Barber wrote in to ask about a monovalve diesel engine he vaguely remembered. A little research turned up an article by Warwick Bryce in the October/November 1994 issue of GEM about the American Diesel Engine Co. and the monovalve diesel designed by Charles A. Winslow, which led to some…

6 min.
flywheel forum

51/5/1: Baker Monitor questions Enclosed you’ll find pictures of my 7 hp Baker Monitor engine (serial number 16370) and saw on an original cart. I am looking for information and some parts. This engine has a two-compartment tank, and on the intake instead of a choke plate it has threads, as if there should be some kind of air heater for the intake air. It has hit-and-miss governing. I would like to hear from anyone having one like that and I’m looking for the missing parts. Any help would be greatly appreciated. Mike Arens 538 Meadow Lark Lane Eden Valley, MN 55329 Mike, a check of a Baker serial number list shows your engine dates from 1917. However, we can’t tell you anything about the threaded mixer inlet. A look through our files didn’t turn…

9 min.
grasser marine

With the piston, connecting rod and bearings taken care of, it was gasket cutting and assembly time. I purchased a big sheet of 1/32-inch-thick gasket paper at my local auto parts store and cut new gaskets for the crankcase. I also cut out the gasket for the exhaust flange, using exhaust gasket paper. The rest of the engine connections are pipe thread fittings. I started the reassembly by assembling the piston, wrist pin and connecting rod. New rings went on the new piston and then I installed this assembly into the cylinder, followed by the crankshaft and main bearings. The connecting rod cap with shims was installed and the rod bolts torqued to 45ft/lb. The bottom crankcase cover was then bolted on with the new gaskets, as shown in Figure 1.…

14 min.
john smyth 4-1/2 hp restoration

Fitting the sleeve Taking light cuts at the end of the boring process left a fairly smooth bore so it was not honed to ease the fitting of the sleeve, as some people suggest. The sleeve itself was measured at six different points around the diameter and it was a constant 4.753 inches. The cylinder had been bored to 4.751 inches so that there would be 0.002-inch interference fit, less interference than the 0.003 inch recommended, but ample for this engine. This fit would be plenty strong enough and it would not be necessary to use Loctite, as well. Prior to fitting the sleeve, a steel disk used to check the bore diameter was skimmed so that it was an easy fit in the bore, with a step cut in it to…

8 min.
gilson farm engines

Jeff Werner probably isn’t alone in his thoughts about engine collecting: “I like working on them probably more than collecting them,” the 42-yearold Long Prairie, Minnesota, man says. But that doesn’t prevent him from collecting, as his group of 70-some gas engines and scale models attests. Different Start Jeff got started in gas engines through his dad, Ron, who was an avid old car collector. “We’d go to threshing shows, and I’d always want to buy an engine,” Jeff says. Eventually, he went to an auction and bought his first engine, a 1925 1-1/2 hp Hercules. “It was one of those big auctions with all the big buyers, and for some reason that Hercules stood out for me. It was one that I could afford, I guess. That first engine started him…

3 min.
patent page

In the quest for durability and dependability, the old dictum “less is more” has been the hallmark of many successful engine designs. In the early 1930s, San Francisco, California, inventor Charles A. Winslow pursued the idea of using a single poppet valve – a monovalve – to control both intake and exhaust flow to create a new range of efficient and dependable diesel engines. The idea wasn’t new – Rudolf Diesel patented a monovalve engine in 1895 – but prior to Winslow’s engine, few monovalve designs had made it beyond the drawing board. In late 1932, Winslow secured development funding and built a working singlecylinder prototype of his monovalve engine, setting up the American Diesel Engine Co. in the old Standard Gas Engine Co. factory in Oakland, California. Based on the…