Lauson Small Engines

My Collection - Overhead Valve Engines




UAS-821

Watch video of my UAS-821 in operation

click an image of a renovated engine on the left to get a larger photo


My literature indicates that Lauson built the Model Type UAS from 1933 through around 1940. It is anybodyís guess regarding what year within that range this specific example was built. I must admit that I was somewhat surprised on close inspection of this engine to see how similar it is to itís Model Type VA predecessor. I had anticipated that it would be more dissimilar, based upon some earlier reading I had done.

Though I havenít completely disassembled this engine, I have had it apart enough to verify that it is in reality, an enhanced Model Type VA in almost every way, and I would expect many internal parts to be shared between the VA and UAS. Even externally, this engine has many castings that carry a VA casting designation. With the deeper oil sump, heavier flywheel, and clutch (also carrying a VA casting designation); and with more parts on this engine being fabricated from cast iron as opposed to aluminum on my VA; this engine is nearly double the weight of itís VA counterpart.

I acquired this engine from an ebay auction and it took a trip from North Carolina to Syracuse, NY to retrieve it. I provide a "before" picture of this engine as well as pictures of it after it's renovation.


VA-817

Watch video of my VA-817 in operation

click an image of a renovated engine on the left to get a larger photo


In my quest to locate some of the more hard-to-find Lauson engines, and in realizing the significance that one of these early Model Type VA engines holds in regard to Lauson engine development; when one of these cast iron Model Type VA engines became available, I jumped at the chance to acquire it, even though it requried a road trip from North Carolina to La Porte, Indiana to retrieve it.

The Lauson Model Type VA of 1929 is a cast iron, vertical cylinder, F-head, open rocker engine stated to develop 1 Ĺ HP at 1200 RPM and 2 HP at 1800 RPM; it has a bore and stroke of 2 ĺ in. by 3 ľ in. It is a fairly sizeable engine (by small engine standards) standing approximately 21 inches tall and weighing around 95 lbs. This particular engine is rope start, however my research indicates that some were alternately equipped for crank start. It takes a fairly hefty pull on the rope to turn it over and get it going but so far, itís been eager to run; usually requiring only one or two pulls of the starting rope to get it going.

I acquired this engine from an ebay auction. It came as a very well maintained engine from an engine collector's collection. All it really needed was the paint "freshened up". I did take the opportunity to replace the 1950ís era gas tank and mount with a tank mount of my own design (though I hope typical of an original mount) and a round gas tank that would have been more typical to the one with which it would have been built.

I provide a "before" picture of this engine as well as pictures of it after it's renovation.


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